Introduction Of Computer Network
A computer network is a system that creates connections between two or more computing devices in order to send and exchange information. This category encompasses all types of computing equipment, ranging from a mobile phone to a server. It is possible for these devices to be wireless; however, they are often linked via physical lines such as fiber optics.
In the late 1960s, the United States Department of Defense provided funding for the establishment of the first operational network, known as ARPANET. In the past, when computers were cumbersome and difficult to transport, government researchers would communicate information with one another.
Since we first started using that fundamental form of network, we have come a long way. The modern world is based on the internet, a network of networks that connects billions of devices worldwide. Businesses of all sizes use networking to link the devices used by their workers to common resources like printers and many other resources.
The traffic monitoring systems found in metropolitan areas serve as a good illustration of a computer network in its broadest sense. These systems provide information on the flow of traffic and events to authorities and emergency responders, such as police and firefighters.
One easier-to-understand example is the use of collaboration tools like Google Drive to exchange papers with coworkers who are located in different locations. A computer network is present whenever we connect with one another via a video call, stream movies, exchange files, communicate with one another through instant messaging, or just access anything on the internet.
Computer networking is a subfield of computer science concerned with the conception, design, establishment, management, and protection of computer networks. Telecommunication, computer science, and computer engineering are all components that come together to form this field.
Advantages Of Computer Network
1. Connectivity : When it comes to connecting to a contemporary computer network, the variety of skills that are necessary is almost nonexistent. The fact that it is so simple to sign up makes it possible for even younger children to begin studying the information and data.
2. Central Storage of Data: All users in an organization can share and access files stored on a central node, also known as the file server.
3. Reliability : If you want to be reliable, you must back up your information. For a variety of reasons, it is possible for the information on one personal computer to become corrupt or unavailable. However, storing a copy of the same information on another workstation allows for future access. This guarantees the uninterrupted operation of the equipment and uninterrupted handling of the information.
4. Faster Problem-solving: All of the connected electronics handle each of these smaller processes, allowing for the resolution of a particular problem in a shorter amount of time.
5. Storage capacity: Due to the fact that you will be responsible for sharing information, records, and assets with other people, it is imperative that you ensure that all information and content are stored in the framework in an appropriate manner. Using this innovation in system management, you will be able to do the majority of these tasks without any problems while still having all of the space you want for capacity.
Disdvantages Of Computer Network
- Loss of Information : If the computer network crashes, it may result in data loss or the inability to access information for a period of time.
2. Virus and Malware : The transmission of viruses from one computer to another across a network is a potential risk associated with computer networking.
3. The system can be Hacked: When it comes to wide area networks (WAN), there is a possibility that the system might be taken over by hackers. We need to incorporate certain security elements to prevent such activities.
4. Expensive: When it comes to the initial setup of the network, the execution may be very pricey due to the high cost of the wires and the cable, as well as the fact that the equipment can be quite expensive at times.
Types Of Computer Network
- Nanoscale networks
- Personal area network (PAN)
- Local area network (LAN)
- Storage area network (SAN)
- Campus area network (CAN)
- Metropolitan area network (MAN)
- Wide area network (WAN)
- Enterprise private network (EPN)
- Virtual private network (VPN)
- Cloud network
- Nanoscale networks : These networks make it possible for very small actuators and sensors to communicate with one another.
2. Personal area network (PAN): A single individual uses a “personal area network” (PAN) to link various devices, including laptops and scanners, among other things.
3. Local area network (LAN): Devices within a specific geographic region, such as schools, hospitals, or business buildings, can connect to one another using a local area network.
4. Storage area network (SAN): The storage area network (SAN) is a specialized network that makes block-level data storage easier. Disk arrays and tape libraries are two examples of storage technologies that take advantage of this information.
5. Campus area network (CAN): It is a collection of interconnected local area networks (LANs). More significant organizations, like governments and educational institutions, use them.
6. Metropolitan area network (MAN): A metropolitan area network (MAN) is a large computer network that spans an entire city.
7. Wide area network (WAN): Networks that span a large geographical area include significant cities, states, and even nations.
8. Enterprise private network (EPN): An enterprise private network (EPN) is a single network that a major corporation uses to link its numerous office locations.
9. Virtual private network (VPN): Overlaying a private network on top of a public network is known as an overlay private network, or VPN.
10. Cloud network : In terms of technology, a cloud network is a wide area network (WAN) with cloud services providing its infrastructure.
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