What is computer network/Definition
A computer network is a collection of interconnected devices, such as computers, servers, switches, routers, and other hardware, that are connected to each other to share resources and exchange information. They can be connected through wired or wireless connections and can range from small local area networks (LANs) to large wide area networks (WANs) that span the globe.
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| Introduction to computer network|computer network|skills arena |
Characteristic/features of computer network:
1) Interconnection: Computer networks consist of a collection of interconnected devices, such as computers, servers, switches, and routers, that are connected to each other to share resources and exchange information.
2) Communication: One of the main characteristics of computer networks is their ability to enable communication between devices and users. They allow users to share data, exchange files, and collaborate on projects in real-time.
3) Resource sharing: Computer networks allow multiple users to share resources such as printers, scanners, and storage devices, which can be more cost-effective than having individual devices for each user.
4) Distributed system: Computer networks are a form of distributed systems which means that the network is composed of multiple interconnected devices that work together as a single cohesive system.
5) Scalability: Computer networks can be designed to accommodate different numbers of users and devices and can be scaled to meet the changing needs of an organization.
6) Centralized management: computer networks can be managed centrally, which makes it easier to monitor and maintain the network, and to implement security measures.
7) Layered Architecture: Computer networks typically use a layered architecture, with different layers responsible for different functions, such as data link, network, transport and application layer. This allows for a separation of concerns, simplifying the development and maintenance of the network.
8) Standards: Computer networks rely on a set of standard protocols to facilitate communication between devices and ensure compatibility between different network components.
Advantages of computer network:
1) Resource sharing: Computer networks allow users to share resources such as printers, scanners, and storage devices, which can be more cost-effective than having individual devices for each user.
2) Increased productivity: Computer networks enable users to communicate and collaborate more effectively, which can lead to increased productivity.
3) Remote access: Computer networks allow users to access information and resources from anywhere on the network, which can improve flexibility and mobility.
4) Backup and data recovery: Computer networks can make it easier to back up and recover data, as multiple copies of files can be stored on different devices on the network.
5) Improved security: Computer networks can improve security by allowing for the centralization of security measures such as firewalls and intrusion detection systems.
Disadvantages of computer network:
1) Cost: Setting up and maintaining a computer network can be expensive, especially for large or complex networks. This includes the cost of purchasing and upgrading hardware, such as servers, switches, and routers, as well as the cost of software, licenses, and network security measures.
2) Complexity: Computer networks can be complex, and managing and maintaining them can require specialized skills and expertise. It can be challenging to troubleshoot and diagnose problems, and keeping the network running smoothly can require constant monitoring and maintenance.
3) Dependence on network: If the network goes down, users will be unable to access the resources and information they need, which can result in lost productivity and revenue. This makes network availability and reliability an important consideration when setting up a computer network.
4) Security Risks: Computer networks can be vulnerable to security breaches and attacks, such as hacking, malware, and data theft. This requires constant monitoring, updating and securing network against potential threats which can be costly and time-consuming.
5) Limited bandwidth: The amount of data that can be transmitted over a network is limited by the available bandwidth. If the network is congested with too much traffic, performance can suffer, leading to slow response times and dropped connections.
6) Interference and interference: Wireless networks are vulnerable to interference from other electronic devices, such as cordless phones and microwaves, which can cause dropped connections and slow performance.
7) Complex Configuration: Large or complex networks may require a lot of planning and management, from configuring the network topology, to setting up the routing and switching protocols, to managing user access and security. This can be a difficult task for those with limited knowledge in IT
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Created by-- HARSH CHAUHAN
