computer network essay

Essay on Computer Network

Students are often asked to write an essay on Computer Network in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

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100 Words Essay on Computer Network

Introduction to computer network.

A computer network is a group of computers linked together. It enables sharing of information and resources. They can be connected through cables, infrared, satellite, or wireless links.

Types of Computer Networks

There are several types of networks. Local Area Network (LAN) connects computers in a small area. Wide Area Network (WAN) covers a large area, like cities or countries. Metropolitan Area Network (MAN) serves a city or suburb.

Benefits of Computer Networks

Networks make communication faster and easier. They allow sharing files, software, and hardware. They also improve data security by allowing backups and recovery.

Also check:

• Advantages and Disadvantages of Computer Network

250 Words Essay on Computer Network

Introduction.

A computer network is a digital telecommunications network that allows computers to exchange data. In computer networks, networked computing devices exchange data with each other using a data link. The interconnections between nodes are formed from a broad spectrum of telecommunication network technologies.

Types of Networks

Based on their scale and scope, computer networks can be categorized into Local Area Networks (LANs), Metropolitan Area Networks (MANs), and Wide Area Networks (WANs). LANs are often used in small geographical areas, while MANs cover larger city-wide areas, and WANs can span countries or even the globe.

Network Architecture

The architecture of a computer network includes the design principles, physical configuration, functional organization, operational procedures, and data formats used. The two primary types are client-server, where one or more computers act as servers, and peer-to-peer, where each computer has equal responsibilities.

Protocols and Standards

Networks operate based on protocols, which are agreed-upon rules determining how computers communicate. These protocols exist for various levels of network communication, forming a protocol stack. The most common stack, TCP/IP, forms the basis of the internet.

Significance of Computer Networks

Computer networks have revolutionized computing by enabling distributed systems, where multiple computers collaborate on a task. They also facilitate resource sharing, increase reliability via redundancy, and allow for scalable computing power.

In conclusion, computer networks are a pivotal aspect of information technology, enabling data exchange and collaboration across various scales and distances.

500 Words Essay on Computer Network

Introduction to computer networks.

A computer network is a set of interconnected computers that share resources and data. It is a fundamental pillar in the field of Information Technology, enabling the exchange of information across geographical boundaries and different platforms. The inception of computer networks revolutionized the way we communicate, work, learn, and entertain ourselves.

There are several types of computer networks, each designed to serve specific purposes. Local Area Networks (LAN) connect devices within a geographically limited area, such as a home or office. Wide Area Networks (WAN) span larger geographical areas, often encompassing multiple LANs. Metropolitan Area Networks (MAN) typically cover a city or town. Personal Area Networks (PAN) are designed for individual use, usually within a range of ten meters.

Components of a Computer Network

A computer network comprises several components. The primary ones are the servers, which store and provide data; clients, which request and receive data; network interface cards (NICs), which connect each computer to the network; switches, which direct data traffic; and routers, which connect different networks together.

Protocols are sets of rules that govern data transmission in a network. They ensure that data is sent and received in a consistent, reliable manner. The Internet Protocol (IP) and Transmission Control Protocol (TCP) are fundamental to the functioning of the internet. Standards, such as those set by the Institute of Electrical and Electronics Engineers (IEEE), ensure interoperability between different devices and networks.

Network Topologies

Network topology refers to the arrangement of elements in a network. Common topologies include the bus, star, ring, mesh, and tree. Each has its advantages and disadvantages in terms of cost, complexity, reliability, and performance.

Security in Computer Networks

As computer networks become more pervasive, security concerns grow. Network security encompasses measures to protect data from unauthorized access, misuse, malfunction, destruction, or improper disclosure. Techniques include firewalls, encryption, intrusion detection systems, and secure protocols like HTTPS.

Future of Computer Networks

The future of computer networks is promising, with advancements like the Internet of Things (IoT), 5G, and quantum computing set to redefine networking. IoT will see an exponential increase in connected devices, while 5G will provide unprecedented data speeds. Quantum computing, although in its infancy, could revolutionize data encryption and processing speeds.

Computer networks have profoundly impacted our lives, transforming how we communicate and access information. As technology continues to evolve, so too will computer networks, promising even greater connectivity, speed, and functionality. Understanding the intricacies of computer networks is essential for anyone venturing into the field of Information Technology or related disciplines.

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• Essay on Computer Education
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What is Computer Networking?

A computer network is a system that connects numerous independent computers in order to share information (data) and resources. The integration of computers and other different devices allows users to communicate more easily.

A computer network is a collection of two or more computer systems that are linked together. A network connection can be established using either cable or wireless media. Hardware and software are used to connect computers and tools in any network.

A computer network consists of various kinds of nodes. Servers, networking hardware, personal computers, and other specialized or general-purpose hosts can all be nodes in a computer network. Host names and network addresses are used to identify them.

How Does a Computer Network Work?

Computer Networks simply work using nodes and links. Data communication equipment is simply termed as Nodes. For example, Modems, Hubs, Switches , etc. whereas links in Computer networks can be referred to as a connection between two nodes. We have several types of links like cable wires, optical fibers , etc. 

Whenever a Computer Network is working, nodes have the work of sending and receiving data via the links. Computer Network provides some set of protocols that helps in following the rules and protocols.

What Do Computer Networks Do?

Computer Networks are one of the important aspects of Computer Science. In the early days, it is used for data transmission on telephone lines and had a very limited use, but nowadays, it is used in a variety of places.

Computer Networks help in providing better connectivity that helps nowadays. Modern computer networks have the following functionality like

• Computer Networks help in operating virtually.
• Computer Networks integrate on a large scale.
• Computer Networks respond very quickly in case of conditions change.
• Computer Networks help in providing data security .

Criteria of a Good Network

• Performance: It can be measured in many ways, including transmit time and response time. Transit time is the amount of time required for a message to travel from one device to another. Response time is the elapsed time between an inquiry and a response. The performance of the network depends on a number of factors, including the number of users, the type of medium & Hardware
• Reliability: In addition to accuracy is measured by frequency of failure, the time it takes a link to recover from failure, and the network’s robustness in catastrophe. 
• Security: Network security issues include protecting data from unauthorized access, protecting data from damage and development, and implementing policies and procedures for recovery from breaches and data loss.  

Goals of Computer Networking

• Programs do not have to execute on a single system because of resource and load sharing.
• Reduced costs – Multiple machines can share printers, tape drives, and other peripherals.
• Reliability – If one machine fails, another can take its place.
• Scalability (it’s simple to add more processors or computers)
• Communication and mail (people living apart can work together)
• Information Access (remote information access, access to the internet, e-mail, video conferencing, and online shopping)
• Entertainment that is interactive (online games, videos, etc.)
• Social Networking

Types of Computer Networks

Division based on the communication medium .

• Wired Network: Communication done in a wired medium . Copper wire, twisted pair, or fiber optic cables are all options. A wired network employs wires to link devices to the Internet or another network, such as laptops or desktop PCs.
• Wireless Network: “Wireless” means without wire, media that is made up of electromagnetic waves (EM Waves) or infrared waves. Antennas or sensors will be present on all wireless devices. For data or voice communication, a wireless network uses radio frequency waves rather than wires.

Division Based on Area Covered

• Local Area Network (LAN): A LAN is a network that covers an area of around 10 kilometers. For example, a college network or an office network. Depending upon the needs of the organization, a LAN can be a single office, building, or Campus. We can have two PCs and one printer in-home office or it can extend throughout the company and include audio and video devices. Each host in LAN has an identifier, an address that defines hosts in LAN. A packet sent by the host to another host carries both the source host’s and the destination host’s address.
• Metropolitan Area Network (MAN): MAN refers to a network that covers an entire city. For example: consider the cable television network.
• Point To Point : Connects two connecting devices through transmission media. 
• Switched: A switched WAN is a network with more than two ends.

Based on Types of Communication 

• Point To Point networks: Point-to-Point networking is a type of data networking that establishes a direct link between two networking nodes. A direct link between two devices, such as a computer and a printer, is known as a point-to-point connection.
• Multipoint : is the one in which more than two specific devices share links. In the multipoint environment, the capacity of the channel is shared, either spatially or temporally. If several devices can use the link simultaneously, it is a spatially shared connection. 
• Broadcast networks: In broadcast networks, a signal method in which numerous parties can hear a single sender. Radio stations are an excellent illustration of the “Broadcast Network” in everyday life. The radio station is a sender of data/signal in this scenario, and data is only intended to travel in one direction. Away from the radio transmission tower, to be precise.

Based on the Type of Architecture 

• P2P Networks: Computers with similar capabilities and configurations are referred to as peers. The “peers” in a peer-to-peer network are computer systems that are connected to each other over the Internet. Without the use of a central server, files can be shared directly between systems on the network.
• Client-Server Networks: Each computer or process on the network is either a client or a server in a client-server architecture (client/server). The client asks for services from the server, which the server provides. Servers are high-performance computers or processes that manage disc drives (file servers), printers (print servers), or network traffic (network servers)
• Hybrid Networks: The hybrid model uses a combination of client-server and peer-to-peer architecture. Eg: Torrent.

Types of Computer Network Architecture

Computer Network Architecture is of two types. These types are mentioned below.

1. Client-Server Architecture: Client-Server Architecture is basically the architecture where the clients and the server are connected as two clients can communicate with each other and the devices present work as servers in the network.

2. Peer-to-Peer Architecture: Peer-to-Peer Architecture , computers are connected to each other and each computer is equally capable of working as there is no central server here. Each device present here can be used as a client or server.

Types of Enterprise Computer Networks

There are three main types of Enterprise Computer Networks which are mentioned below.

1. Local Area Network (LAN): Local Area Networks are small-scale networks used in small companies or as test networks. It has a limited size.

2. Wide Area Networks (WAN): Wide Area Networks are networks that are used for a larger area than local area networks and are used for long-distance communication.

3. Service Provider Networks: Service Provider Networks are the networks that help in wireless communication, high-speed internet access, etc.

What computer networking services does AWS offer

With only a couple of mouse clicks, an array of scalable, on-demand databases and networking solutions are accessible through AWS networking services.

• Network safety: In order to fulfil the highest international requirements for network security and to help assure confidentiality and integrity, AWS infrastructure is continuously monitored.
• Accessibility of the network: With its extensive global infrastructure, AWS can provide high availability to any location on the planet.
• Network functionality: Amazon network services offer fast speeds and less latency.

Network Topology

The structure of the network and how each component is connected to the others are defined by the network topology. Topology comes in two flavours: logical topology and physical topology.

Bus Topology

Every computer and network device is connected to a single cable in a bus topology network. Linear Bus topology is defined as having exactly two terminals.

• Installation is simple.
• Compared to mesh, star, and tree topologies, the bus utilizes less cabling.

Disadvantages

• Difficulty in reconfiguring and isolating faults.
• A bus cable malfunction or break interrupts all communication.

For more, you can refer to the Advantages and Disadvantages of Bus Topology.

Ring Topology

The topology is named ring topology because one computer is connected to another, with the final one being connected to the first. Exactly two neighbors for each device. A signal is passed along the ring in one direction. Each ring incorporates a repeater. 

• Data transmission is relatively straightforward because packets only move in one direction.
• There is no requirement for a central controller to manage communication between nodes.
• Easy installation & Reconfiguration
• Simplified Faulty connections
• In a Unidirectional Ring, a data packet must traverse through all nodes.
• All computers must be turned on in order for them to connect with one another.

For more, you can refer to the Advantages and Disadvantages of Ring Topology.

Star Topology

Each device in a star topology has a dedicated point-to-point link to a central controller, which is commonly referred to as the HUB. There is no direct connection between the devices. Traffic between the devices is not allowed in this topology. As an exchange, the controller is used.

• When attaching or disconnecting devices, there are no network interruptions.
• It’s simple to set up and configure.
• Identifying and isolating faults is simple.
• Less Expensive than mesh 
• Easy to install & configure
• Nodes attached to the hub, switch, or concentrator is failed if they fail.
• Because of the expense of the hubs, it is more expensive than linear bus topologies.
• More cable is required compared to a bus or ring 
• Too much dependency on Hub

For more, you can refer to the Advantages and Disadvantages of Star Topology .

Example: Used in high-speed LANs

Mesh Topology

Every device in a mesh topology has dedicated point-to-point connectivity to every other device. The term “dedicated” refers to the fact that the link exclusively transports data between the two devices it links. To connect n devices, a fully connected mesh network contains n *(n-1)/2 physical channels.

• Data can be sent from multiple devices at the same time. This topology can handle a lot of traffic.
• Even if one of the connections fails, a backup is always available. As a result, data transit is unaffected.
• Physical boundaries prevent other users from gaining access to messages
• Point to Point links make fault transmission & fault isolation easy 
• The amount of cabling and the number of I/O ports that are necessary.
• The sheer bulk of wiring can be greater than the available space can accommodate.
• It is difficult to install and reconfigure.

For more, you can refer to the Advantages and Disadvantages of Mesh Topology .

Example:  connection of telephone regional office in which each regional office needs to be connected to every other regional office. 

Tree Topology

The topology of a tree is similar to that of a star. Nodes in a tree, like those in a star, are connected to a central hub that manages network traffic. It has a root node, which is connected to all other nodes, producing a hierarchy. Hierarchical topology is another name for it. The number of Star networks is connected via Bus in Tree Topology.

• Network expansion is both possible and simple.
• We partition the entire network into pieces (star networks) that are easier to manage and maintain.
• Other segments are unaffected if one segment is damaged.
• Tree topology relies largely on the main bus cable because of its basic structure, and if it fails, the entire network is handicapped.
• Maintenance becomes more challenging when more nodes and segments are added.

For more, you can refer to the Advantages and Disadvantages of Tree Topology .

Tree Topologyn house Improvementhttps://www.geeksforgeeks.org/network-layer-protocols/

Networking Devices 

Basic hardware interconnecting network nodes, such as Network Interface Cards (NICs), Bridges, Hubs, Switches, and Routers, are used in all networks. In addition, a mechanism for connecting these building parts is necessary, which is usually galvanic cable and optical cable are less popular (“optical fiber”)The following are the network devices :

• NIC (Network Interface Card): A network card, often known as a network adapter or NIC (network interface card), is computer hardware that enables computers to communicate via a network. It offers physical access to networking media and, in many cases, MAC addresses serve as a low-level addressing scheme. Each network interface card has a distinct identifier. This is stored on a chip that is attached to the card.
• Repeater: A repeater is an electrical device that receives a signal, cleans it of unwanted noise, regenerates it, and retransmits it at a higher power level or to the opposite side of an obstruction, allowing the signal to travel greater distances without degradation. In the majority of twisted pair Ethernet networks, Repeaters are necessary for cable lengths longer than 100 meters in some systems. Repeaters are based on physics.
• Hub: A hub is a device that joins together many twisted pairs or fiber optic Ethernet devices to give the illusion of a formation of a single network segment. The device can be visualized as a multiport repeater. A network hub is a relatively simple broadcast device. Any packet entering any port is regenerated and broadcast out on all other ports, and hubs do not control any of the traffic that passes through them. Packet collisions occur as a result of every packet being sent out through all other ports, substantially impeding the smooth flow of communication.
• Bridges: Bridges broadcast data to all the ports but not to the one that received the transmission. Bridges, on the other hand, learn which MAC addresses are reachable through specific ports rather than copying messages to all ports as hubs do. Once a port and an address are associated, the bridge will only transport traffic from that address to that port.
• Switches: A switch differs from a hub in that it only forwards frames to the ports that are participating in the communication, rather than all of the ports that are connected. The collision domain is broken by a switch, yet the switch depicts itself as a broadcast domain. Frame-forwarding decisions are made by switches based on MAC addresses.
• Routers: Routers are networking devices that use headers and forwarding tables to find the optimal way to forward data packets between networks. A router is a computer networking device that links two or more computer networks and selectively exchanges data packets between them. A router can use address information in each data packet to determine if the source and destination are on the same network or if the data packet has to be transported between networks. When numerous routers are deployed in a wide collection of interconnected networks, the routers share target system addresses so that each router can develop a table displaying the preferred pathways between any two systems on the associated networks.
• Gateways: To provide system compatibility, a gateway may contain devices such as protocol translators, impedance-matching devices, rate converters, fault isolators, or signal translators. It also necessitates the development of administrative procedures that are acceptable to both networks. By completing the necessary protocol conversions, a protocol translation/mapping gateway joins networks that use distinct network protocol technologies.

The Internet is a larger network that allows computer networks controlled by enterprises, governments, colleges, and other organizations all over the world to communicate with one another. As a result, there is a tangle of cables, computers, data centers, routers, servers, repeaters, satellites, and Wi-Fi towers that allow digital data to go around the world.

The Internet is a vast network of networks that functions as a networking infrastructure. It links millions of computers throughout the world, creating a network in which any computer can talk with any other computer as long as they are both linked to the Internet.

The Internet is a global network of interconnected computers that communicate and share information using a standardized Internet Protocol Suite.

Frequently Asked Questions on Computer Networking – FAQs

List the advantages and disadvantages of the internet.

The advantages of the Internet are, Source of entertainment – Online gaming, talking, browsing, music, movies, dramas, and TV series are quickly becoming the most popular ways to pass the time. Source of information – There is no better place to conduct research than the internet. We can learn about the latest trends, communicate with experts without having to physically visit them, and seek professional advice over the Internet. E-Commerce – With the advancement of internet technology, large online E-commerce enterprises such as Amazon, Ali Baba, myntra, etc. have emerged. Working from home, collaborating with others, and having access to a global workforce are all advantages. Keeps Updated – Because there are hundreds of thousands of newsgroups and services that keep you updated with every tick of the clock, the Internet is a source of the most recent news. Disadvantages of the internet are, Time Wastage – Most people believe that spending too much time on the internet is unhealthy for young people and leads to obesity.  Money Laundering – Aside from reputable sites, there are some Social Media Advertising sites that try to steal your personal information, credit card information, and even your pin code. You can easily become a victim of money scams if they get this information. Exposure to private data – It is now quite easy to decipher someone’s chat or email communication thanks to the hacking community. As we all know, data is transmitted in packets, which hackers can simply detect and reconstruct. Harassment & threatening – Bullies exist online, just as they do in real life, and they can lower your self-esteem by harassing and threatening you. Some of these individuals may be persons who are aware of some of your personal details and dislike you and may use this information to harass you.

List the ways to connect to the internet?

We can connect to the internet in the following ways: Dial-Up – In order to access the Internet, in this type of connection, users must connect their phone line to a computer. This link prevents the user from using tier home phone service to make or receive calls. Broadband – Broadband is a high-speed internet connection that is frequently utilized nowadays and is provided by cable or phone companies. Wireless connections – Internet access is accomplished by radio waves, thus it is possible to connect to the Internet from any location. Wi-Fi and mobile service providers are examples of wireless connections.

Compare the Internet & the World Wide Web?

Sir Tim Berners-Lee is credited with creating the World Wide Web. He came up with the core idea for the WWW while working at the European Organization for Nuclear Research in 1989. He wanted to combine the growing technologies of computers, data networks, and hypertext into a powerful and easy-to-use worldwide information system. The Internet is a vast network of networks that functions as a networking infrastructure. It links millions of computers throughout the world, creating a network in which any computer can talk with any other computer as long as they are both linked to the Internet. The World Wide Web, or simply the Web, is a method of gaining access to information over the Internet. The World Wide Web , also known as the ‘www,’ is a collection of webpages that can be quickly published on the Internet and read by millions of people.

What is the full form of www?

The full form of www is World Wide Web. It is the world’s most dominant software and is commonly known as the web.

What is Network Topology?

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The Usefulness of Computer Networks for Students Essay (Critical Writing)

Computer network is the interconnection of many resourceful computers through domains which provide users with the possibility to freely share ideas, information and other useful resources. In my class setup, computer network has played a big role in construction of knowledge among my fellow learners. One major role which computer network plays in imparting knowledge is implemented through sharing of ideas.

According to Resnick (1996), learning is described as an active process where knowledge is constructed from various experiences in the world, thus making ideas rather than getting them. Through computer network, my fellow learners share various ideas they have made in the process and this became available to all of us. We are able to access various ideas, disseminate, and improve them which results in the splendid end product.

Computer network has also enabled us to collaborate in real-time through chatting and using newsgroup forums where we communicate freely among learners which results into enhancement and construction of new knowledge. The network has enabled us to make computer simulations in various projects we are undertaking and which are tested by other learners who act as users of the constructed simulations.

The feedback obtained from the users helps us improve on our simulations through active participation on the internet. In the absence of computer network in the school environment, learners can use physical discussion forums where we can meet in study rooms, meeting places and still share ideas thus extending distributed constructionism.

Learners can also record their findings and work with electronic tapes, e.g. flash disks, compact disks and post them via postal mails to their colleagues. Mobile phones text messages can also be used to share ideas and resources hence promoting distributed constructionism.

Computer network and the Internet act as Rorschach test for educational philosophy whereby it can be interpreted into many ways. Through my own educational philosophy, I see the internet as a way of life throughout the world.

To defend my philosophical view, the internet has enabled the entire world to become a global village whereby users share their daily life experience hence making the internet as a virtual way of life. The information shared on the internet can be used by various users depending on their area of interest.

Pea’s idea of enabling educators to facilitate individuals from tool-free cognition is a feasible and realistic idea which can be adopted at any level of learning (Pea, 1993). Distributed intelligence and cognition are defined as a theoretical approach that focuses on interaction between individuals and other factors that are depend on how they are approached and implemented.

The theory is realistic in that no individual is an island of his own information and students get to know things through interaction with other people. This can range from interaction with cultural influences, material artifacts and with any other social activity. To facilitate Pea’s idea, educators need to understand the level of grade they are teaching.

Lower grade students need to use simple simulations and resources which they can easily understand as opposed to adult learners who can understand complex simulations. Learners who will have access to information will learn faster than those who will have limited information.

Computers cannot replace the role of adults in guiding the children for 100%, but they can play a very big role in imparting knowledge to youngsters. This notion is applicable where computer intelligence is as a result of A customized software which has been programmed by various technocrats through distributed constructionism, tested by various users and finally presented to the educators for the purpose of teaching children.

The use of computer intelligence should not be limited to children and their ZPD only, but should also be applied to adults as well. The determinant factor when using computer intelligence should be the selection of learning tools.

In this case, educators should select learning tools depending on the level of the learners to facilitate distributed cognition. Educators should also break down a problem in question into simple manageable levels for the learners to understand.

In my learning environment, I have personally experienced computers substituting the skilled other. In this case, computer simulations were used to state and represent a problem. This was done by using whiteboard diagrams which broke the problem down into manageable levels that can be understood.

Pea, R.D. (1993). Practices of distributed intelligence and designs for education. In G. Salomon (Ed.), Distributed cognitions, Psychological and educational considerations (pp. 47-87) . NY: Cambridge University Press. peaDistrib.pdf

Resnick, M. (1996). Distributed Constructionism. Proceedings of the International Conference on the Learning Sciences Association for the Advancement of Computing in Education Northwestern University . Retrieved from

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Free Computer Networks Essay Sample

Introduction.

Computing Networks refers to networks which comprises of hardware and software components coupled with computers which are interconnected via communication channels which make it possible for the sharing of both hardware and software resources and information. Computing networks can be categorized according to various characteristics like for instance the medium for transportation of data, the scope of the organization, the topology, scale and the communication protocols that have been used in the technology.

Computing networks have been defined through communication protocols which are made up of data formats and rules for exchanging or sharing of information. Some of the commonly used communication protocols include the internet protocol suite and the Ethernet. The Ethernet protocol is a ubiquitous standard that is mostly used in local area networking while the Internet Protocol suite is sued for host to host transfer of data and for communication between two or more multiple computer networks. Computing networks, on the other hand, have been known to share information either through wired or wireless technology.

Day in day out in each part of the globe, computing networks have been more and more been integrated in all aspects of our lives through various technological innovations meant to improve the lives of human kind. For any computing network to exists, then there has to be 2 computers, a protocol (sets of rules or communication) and the hardware. This setting will enable the two computers to be connected and therefore enable sharing of information and resources between them. 

Set up of a Computing Network

In order to set up a Computing Network, some of the hardware requirements that are critical include network cards and a router. A router is a device which is used for directing of traffic within a computing network to the various computers existing within the network. Because of its function, a router can therefore be correctly compared in similarity with a traffic light which controls traffic on a road setting. This is because just like the traffic light handles motor traffic on the road, a router similarly performs the function of handling network traffic and sending the signals to various segments within the network. A network Card on the other hand, is a basic hardware requirement since it is tasked with ensuring that the two computers in the computing environment are capable of communicating. This device (the Network Card) is a vital component of the Computing network since it gives the computer a channel for sending and retrieval of data in the network.  

A protocol is a basic software requirement because it is a communication method which is used by the computing network. One of the major functions of a protocol is to package the information that has been send by the sender computer and ensure that this information has been appropriately and correctly delivered to the recipient.

The Computing network technology

Within a computing network environment, there exists a server and clients. A server is a component in the computing network because it comprises of faster processing abilities and mass storage capabilities making it possible for multiple users to save their data or information and use the various hardware and software resources available on the network. The Client refers to multiple computers which are available on a computing network. To be able to use both the hardware and software resources that are available on a computing network, then the client must log on to the network available on the server in order to be given access to use them. Client computers are different from the server because they will normally need permission on the computing network and they are normally slower as compared to the server.      

How computing networks are more and more integrated in all aspects of our lives

The use of computing networking will make remote computers to be capable of monitoring the health statistics of individuals and therefore be able to ascertain when we are in danger and therefore take the most appropriate corrective action for rescue. The use of the Computing Networks through various technological chips spread widely around our environment will make life to be more comfortable and effective. Computing networks will make it capable for refrigerators to become connected to the internet so that when users, through the use of PDA or their cell phones will be capable of knowing what is at the store without physically checking. More interesting is the fact that these refrigerators will be capable of sensing when there is a low stock of milk or its contents and therefore place directly an order for restocking from the supplier. Such technology will make it possible for the manufacturer to monitor the device and directly ensure that it is working correctly and inform the user when it is faulty.     

Various business enterprises located either in the same locality or distances away can now be able to share information among their enterprises courtesy of computing networking. Sharing of information between business enterprises belonging to the same owner is possible through either local area networking (LAN) for the case of business enterprises located in the same locality while Wide Area Networking will be suitable for businesses which are located over  wide geographical locations.

Computing networks are therefore suitable for business organizations like banks which are geographically located either in local or international geographical locations because they share be able to access and retrieve any information concerning their clients with ease and accuracy regardless of the geographical location. Unlike before when individuals had to line up in order to get their money in banks, the use of Automated Teller Machines (ATMS) nowadays has made it possible for people to quickly access their money anywhere in their country and even in the whole world, thanks to computing technology.

Computing networking has also revolutionaries the communication methods because unlike before when pigeons were used in sending messengers, the use of computing networking has made it possible for people to communicate effectively and instantly through the use of email and instant messaging services. Every aspect of our daily lives has been integrated with computing networks.      

How to keep Computing networks free from hacking

Despite the fact that computing networks are meant to serve human beings through enhanced technological innovations, this technology can be detrimental if proper network security settings are not put in place to safeguard the common users. It is therefore important that these networks are kept free from any potential harm which may arise from hacking. Hacking has been known to be a major threat towards the safe existence of computing networks. Hacking, this refers to an act of gaining entry with no legal authorization to a computer system or network with an aim of gaining full control of the computer network or system. The Network Administrator, who is responsible for managing the computing networks, should therefore control the security of the network through authorization of access to data in a network. Users in a computing network should thus be assigned or choose unique passwords or identities which can enable them to access basic programs and information within the network that is only within their authority.   

The hackers’ main intention is to gain control of an organization or an individual’s network with a view of gaining information regarding the systems. They normally do so with a view of even distorting the normal operation of the computer systems and network in general.

 In order to make safe these computing networks and ensure there is safe or secure transmission of data end to end, then the network administrator in an organization should administer policies and provisions which are aimed at monitoring and preventing unauthorized access, system modification, denial of network and computer accessible resources and general misuse. Authentication of users through their user names and passwords is one of the major measures taken to ensure that the network is secured from unauthorized access. 

A firewall should then be put in place to ensure that policies regarding the kind of services to be accessed by users on the network are enforced. Unfortunately the use of firewalls may fail to detect potentially harmful threats like for instance Trojans or viruses which may maliciously become transported over the network. A strong anti-virus software should therefore be installed on the computing network and an intrusion prevention system placed in place to aid in the detection and inhibition of such dangerous threats. Encryption of data should also be utilized to ensure that those gaining unauthorized access to an organization’s information are unable to understand it because of the anonymous codes used.         

Given the fact that Computing networks are here to stay, effective strategies should be developed to ensure that the use of this technology is not only effective and accurate but it is confidentially safe to use. The safety of computer networks should therefore be a first place priority for all organizations which must endeavor in devising daily safety mechanisms to counter ay threats that may comprise the safety of these networks. The safety of computer networks should therefore not be left to computer administrators alone but it should be a collective responsibility for all the network users who should raise an alarm whenever they sense any abnormal incident in the normal operation mode of the system. These measures will ensure that the information which is sent from end to end, thus one computer to another is safe and protected from external and unauthorized users.         

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Important Computer Network Assignment Topics

• Emily Scott

A computer network is a gathering of interconnected computers. A wide assortment of qualities might order networks.

Computer networking development includes a broad scope of areas, some of which cover computer-based instruction. For instance, this computer-based training development presently advocates vast network connections across schools, libraries, craftsmanship galleries, and examination focuses. The computer networking CM pushes this vision further, supporting all institutional areas meshing together into one big automated web. Students pursuing their studies in this particular academic sphere are expected to perform well in computer network assignment topics to score good grades.

Types of Computer Networks

Personal area network (pan).

The most minor and essential network, a PAN, comprises a remote modem, a computer or two, telephones, printers, tablets, and so forth, and spins around one individual in one structure. These networks are regularly found in little workplaces or habitations and overseen by one individual or association from a solitary gadget.

Local Area Network (LAN)

We're confident you've known about these networks previously – LANs are the most habitually examined networks, one of the most widely recognized, most unique, and perhaps the easiest. LANs associate gatherings of computers and low-voltage gadgets across short separations (inside a structure or between a group of a few designs in closeness to one another) to share data and assets. Undertakings regularly oversee and look after LANs.

Metropolitan Area Network (MAN)

A metropolitan area network is a network that covers a more extensive geographic area by interconnecting an alternate LAN to frame a giant web.

Government organizations use MAN to interface with the residents and private ventures. Within such concepts, a large number of students find it extremely difficult. Hence, they require professional help with computer network assignment topics.

In MAN, different LANs are associated with one another through a phone trade line. It has a higher reach than the Local Area Network(LAN). Airline Reservation utilizes this network. It is used in a school inside a city.

Wide Area Network (WAN)

Somewhat more mind-boggling than a LAN, a WAN associates computers together across longer actual separations. It permits computers and low-voltage gadgets to be distantly associated with one another, more than one colossal network to impart when separated.

Also Read: Explained: Artificial Neural Network

Significant Computer Network Assignment Topics

Star topology.

Star topology is a network plan where a focal hub expands a link (or remote) to every computer on the web. On a star network, computers are associated autonomously with the focal point of the network.

A star topology permits direct administration of the whole network from one spot. Since every hub has its association, the deficiency of one corner won't break the entire thing. On the off chance that you have to add a gadget to the network, it connects right without additional exertion.

The main issue is that there is a solitary purpose of disappointment in the star network. The entire thing goes down if there's just a single center point. In any case, networking experts will regularly have fizzle over workers – reinforcements – that keep things running while they fix the principal worker.

Intranet Preferences

Correspondence: It gives a modest and straightforward post. A worker of the association can speak with another representative through email or visit.

Efficient: Information on the intranet is partaken continuously, so the time has come sparing.

Coordinated effort: Collaboration is one of the main focal points of the intranet. The data is conveyed among the association representatives and must be gotten to by the approved client.

Savvy: People can see the information and archives by utilizing the program and appropriating the copy duplicates over the intranet. It prompts a decrease in expenses.

How is Computer Networking Advancing?

Current networks convey more than availability. Associations are leaving on changing themselves carefully. Their webs are essential to this change and their prosperity. Network regulators are critical to scaling and making sure about networks. Regulators mechanize networking capacities by interpreting business expectations to gadget arrangements, and they screen gadgets ceaselessly to help guarantee execution and security. Regulators improve tasks and assist associations with reacting to changing business necessities. Other crucial computer network assignment topics need help . Take a look

Algorithms and complexity

Architecture and organization

Computational science

Graphics and visual computing

Human-computer interaction

Information management

Intelligent systems

Networking and communication

Operating systems

Parallel and distributed computing

Platform-based development

Programming languages

Security and information assurance

Software engineering

Social and professional issues

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Computer Network Systems Essay Example

• Pages: 6 (1465 words)
• Published: November 1, 2018
• Type: Article

Computer network systems are essential in today's technologically advancing world as they connect computers or networks, allowing for seamless communication. This promotes cooperation and convenience among different companies or departments within the same organization. The widespread use of various types of computer network systems is evident.

The text provides an overview of various computer networking systems, including LANs, PANs, MANs, CANs, WANs, and GANs. It emphasizes the significance of comprehending the physical and logical topology structure as well as the basic operation of networks. Furthermore, it underscores the diverse applications of these systems for individual users and large organizations. The research paper also explores different types of computer networking systems along with examples and examines technology options related to network connections like packet and circuit switching.

A Personal Area Network (PAN) is a networking conn

ection designed for individual PC users to communicate and connect with personal electronic devices, such as cell phones, telephones, and gadgets. The main purpose of PAN is to facilitate the transfer of files including email, pictures, text documents, music, and videos. The range of a PAN typically covers around 10 meters (30 feet).

The Personal Area Network (PAN) can connect devices using cables like USB or FireWire, or wirelessly through technologies such as Bluetooth (also known as Piconet), ZigBee, IrDA, or Z-wave. Wireless PAN enables the interconnection of common personal portable devices and can even be utilized in surgical operations to improve communication among doctors and team members.

Another type of networking system is the Local Area Network (LAN), which involves interconnected computers within a single geographic location like an office building or school. LAN offers high data transfer rates without requiring leased telecommunicatio

lines and its main purpose is to facilitate resource and application sharing.

Special operating system software, such as Internet Connection Sharing (ICS), should be utilized to establish a LAN and support controlled access to it (Mitchell). It is also possible to create a temporary LAN by connecting computers during events like multiplayer gaming, commonly known as a LAN party. Wired LAN is more favorable than wireless LAN due to its cost-effectiveness achieved through inexpensive hardware like network adapters, hubs, and Ethernet cables. LAN technologies such as Token Ring, ARCNET, Ethernet, and Wi-Fi are widely used. ARCNET, as one of the earliest LAN forms, has been utilized in automated industries up to the present. Token Ring utilizes ring or star network topology to connect computers.

Usage of token or bit-passing schemes prevents the occurrence of errors or collisions when two computers are simultaneously transmitting files. Nowadays, two LAN technologies commonly employed are Wi-Fi and Ethernet. Ethernet can operate as a shared medium by using a coaxial cable or special twisted pair wires; however, it can also be utilized in wireless LANs. A widely used form of Ethernet, known as 10BASE-T, maintains a data transfer speed of up to 10 Mbps.

Appliances are connected with a cable and use the Carrier Sense Multiple Access with Collision Detection protocol (CSMA/CD) for access. Wi-Fi technology, based on the IEEE 802.11 standards, enables devices like cell phones, personal computers, electronic books, or IPods to wirelessly access the Internet through hotspots. These hotspots can be used for limited home or office use or to provide free or paid public access in places such as airports or cafes. Campus Area Network (CAN) is a computer

network system that connects multiple local networks within a corporate or university campus.

The text states that in this scenario, all campus departments and facilities, including academic buildings, administrative offices, the library, student and technology centers, the conference hall, and students' residence halls, are utilizing the same hardware and sharing a single networking system and technologies. The organization owns all the hardware equipment such as routers, switches, cabling, and wireless network points. The university network, similar to corporate area networks like Googleplex and Microsoft's Campus, connects various structures within the corporation or organization (Javvin). A Metropolitan Area Network (MAN) is larger in size compared to a Corporate Area Network (CAN) but uses the same technology as a Local Area Network (LAN), essentially functioning as a larger version of a LAN.

MAN, which stands for Metropolitan Area Network, can be either a private or public network that serves a cluster of corporate offices or an entire city. Its design is simplified as it uses minimal cables and does not require switching elements (Tanenbaum). The use of fiber optic cables or other digital media allows for high-speed connectivity within a MAN. It provides Internet access to metropolitan LANs and can also be utilized for cable television.

MAN, also known as DQDB (Distributed Queue Dual Bus), is based on the IEEE 802.6 standard. DQDB consists of two unidirectional buses that connect all computers. Each cable has a head-end device responsible for information transfer. With DQDB technology, connectivity can be provided up to 20 miles away from the network access, achieving speeds of up to 155 Mbit/s.

Wide Area Network (WAN) spans a larger geographical area compared to a metropolitan network. It can

connect various smaller networks such as LANs and MAN, enabling users and computers from different locations to communicate. A practical example of WAN usage is seen in drugstores where it facilitates efficient customer service. For instance, customers can access a shared customer database even when located in different states. Commercial organizations utilize WANs to securely share and transmit information related to sales, development, production, marketing, and accounting with authorized locations.

The concept of Wide Area Network (WAN) creates new possibilities for the business world and human resources management. A unified computer network system within a company allows employees to be more flexible, working from various locations instead of being tied to their office workplace. In situations where a network is inaccessible, workers can easily transition to another hotspot and continue their work (Tatum, 2010). WAN can be constructed using leased line, packet or circuit switching, or cell relay technologies. Leased line, which is the most secure but also the most costly option, is used when two computers or LANs are connected via point-to-point connection technology.

PPL, SDLC, HNAS, and PPL are protocols commonly used in leased line connections such as a dialup connection. These protocols help establish circuit switching by creating a circuit path between two network nodes. PPP, IDSN or other protocols can also be utilized in circuit switching.

Package switching involves transferring packets of divided data through a point-to-point or point-to-multipoint link via the carrier internetwork. This can be achieved by establishing either Switched Virtual Circuits or Permanent Virtual Circuits. Much like circuit switching, package switching is cost-effective but utilizes a shared link. X.25 Frame-Relay is a possible protocol for this purpose. In comparison, cell

relay technology operates similarly to package switching but employs fixed length packets.

Data is divided into fixed-length packets and then transmitted through virtual channels. This method is convenient for transmitting both voice files and data simultaneously, but it may result in overhead. ATM, a commonly used protocol in cell relay connections, is an example of this. Telephone lines, satellite channels, and microwave links are commonly used in telecommunication networks for WANs.

The Internet is the most commonly used Wide Area Network (WAN) technology (Mitchell). It includes components like VPN-based extranets, which are also considered WANs. Global Area Network (GAN) is the largest type of computer network system that connects different computer networks over a wide geographical area. A well-known example of GAN is Broadband Global Area Network (BGAN), which utilizes satellites to offer Internet connection even in remote locations. BGAN terminals are portable and user-friendly as they are compact in size and do not necessitate large satellite dishes for connectivity.

BGAN technology is crucial for providing connectivity in areas where other cellular or wireless network systems are unavailable. Furthermore, there exist several other computer networking technologies utilized today for different purposes. Home Area Network (HAN) serves to connect a limited number of computers and electronic devices within a home environment. Virtual Private Network (VPN) enables data transfer through shared or public networks while maintaining the characteristics of a private network. Instead of physical wires, open point-to-point connections or vital circuit in a larger network are used to establish links between nodes. However, if there is no service level agreement (SLA) between the VPN service provider and the VPN customer, best-effort performance may be observed (Warehand, 2009).

The Internet, which

is also referred to as an Internetwork, involves connecting distant computer networks using a shared routing technology. This enables efficient communication and data transfer between computers and electronic devices. Given the increasing significance of technology in contemporary society, it is essential to grasp the fundamentals of network topology, operation, and practical applications. Although each network system possesses its own distinct physical and logical structure, they can be merged to improve service and communication among personal computers and other networks.

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Essay on Computer and its Uses for School Students and Children

500+ words essay on computer.

In this essay on computer, we are going to discuss some useful things about computers. The modern-day computer has become an important part of our daily life. Also, their usage has increased much fold during the last decade. Nowadays, they use the computer in every office whether private or government. Mankind is using computers for over many decades now. Also, they are used in many fields like agriculture, designing, machinery making, defense and many more. Above all, they have revolutionized the whole world.

History of Computers

It is very difficult to find the exact origin of computers. But according to some experts computer exists at the time of world war-II. Also, at that time they were used for keeping data. But, it was for only government use and not for public use. Above all, in the beginning, the computer was a very large and heavy machine.

Working of a Computer 

The computer runs on a three-step cycle namely input, process, and output. Also, the computer follows this cycle in every process it was asked to do. In simple words, the process can be explained in this way. The data which we feed into the computer is input, the work CPU do is process and the result which the computer give is output.

Components and Types of Computer

The simple computer basically consists of CPU, monitor, mouse, and keyboard . Also, there are hundreds of other computer parts that can be attached to it. These other parts include a printer, laser pen, scanner , etc.

The computer is categorized into many different types like supercomputers, mainframes, personal computers (desktop), PDAs, laptop, etc. The mobile phone is also a type of computer because it fulfills all the criteria of being a computer.

Get the huge list of more than 500 Essay Topics and Ideas

Uses of Computer in Various Fields

As the usage of computer increased it became a necessity for almost every field to use computers for their operations. Also, they have made working and sorting things easier. Below we are mentioning some of the important fields that use a computer in their daily operation.

Medical Field

They use computers to diagnose diseases, run tests and for finding the cure for deadly diseases . Also, they are able to find a cure for many diseases because of computers.

Whether it’s scientific research, space research or any social research computers help in all of them. Also, due to them, we are able to keep a check on the environment , space, and society. Space research helped us to explore the galaxies. While scientific research has helped us to locate resources and various other useful resources from the earth.

For any country, his defence is most important for the safety and security of its people. Also, computer in this field helps the country’s security agencies to detect a threat which can be harmful in the future. Above all the defense industry use them to keep surveillance on our enemy.

Threats from a Computer

Computers have become a necessity also, they have become a threat too. This is due to hackers who steal your private data and leak them on internet. Also, anyone can access this data. Apart from that, there are other threats like viruses, spams, bug and many other problems.

The computer is a very important machine that has become a useful part of our life. Also, the computers have twin-faces on one side it’s a boon and on the other side, it’s a bane. Its uses completely depend upon you. Apart from that, a day in the future will come when human civilization won’t be able to survive without computers as we depend on them too much. Till now it is a great discovery of mankind that has helped in saving thousands and millions of lives.

Frequently Asked Questions on Computer

Q.1  What is a computer?

A.1 A computer is an electronic device or machine that makes our work easier. Also, they help us in many ways.

Q.2 Mention various fields where computers are used?

A.2  Computers are majorly used in defense, medicine, and for research purposes.

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