What is a computer network?
a. A collection of interconnected computers and devices for communication and resource sharing
b. A program that manages hardware resources
C A set of protocols for coding and decoding data
d. A system that allows multiple users to share a single computer
The correct answer and explanation is:
The correct answer is:
a. A collection of interconnected computers and devices for communication and resource sharing
A computer network is a system that links multiple computers and other devices together to enable communication and sharing of resources. This can include data, printers, servers, or any other shared hardware or software. The primary function of a computer network is to allow devices to exchange information efficiently. Networks are structured using a combination of hardware (such as routers, switches, and cables) and software (such as protocols and communication standards) to establish connections.
At the core of any computer network is a communication system that allows data to be transmitted between devices, often using common protocols such as TCP/IP. These protocols ensure that data is sent in a standardized format so that devices on the network can understand and process it.
There are several types of networks based on their scale and design. Local Area Networks (LANs) connect devices within a small area like a home or office. Wide Area Networks (WANs), on the other hand, cover larger geographical areas, like cities or even global networks. The internet itself is an example of a vast WAN that connects millions of devices worldwide.
In a network, devices communicate through various mediums, such as wired connections (e.g., Ethernet cables) or wireless connections (e.g., Wi-Fi). This communication can occur using different topologies, such as star, ring, or mesh, depending on how devices are interconnected.
Overall, computer networks have revolutionized how individuals and organizations operate by enabling real-time communication, file sharing, and collaborative tools. They are essential for everyday tasks, from simple web browsing to complex business operations involving cloud computing and data storage.