Bachelor of Information Technology Honours: Computer Networking at Polytechnic of Namibia

What is Computer Networking?

A computer network is a set of computers sharing resources located on or provided by network nodes. The computers use common communication protocols over digital interconnections to communicate with each other.

Overview

Computer networks enable communication for every business, entertainment, and research purpose. The internet, online search, email, audio and video sharing, online commerce, live-streaming, and social networks all exist because of computer networks.

Frequently Asked Questions

What are 4 computer networks?

The vital computer network is divided into four types based on their size and functions. They are LAN, MAN, PAN, and WAN. Here LAN stands for Local Area Network, MAN stands for Metropolitan Area Network, Personal Area Network is abbreviated into PAN whereas WAN is expanded as Wide Area Network.

What is meant by computer networking?

Computer networking refers to interconnected computing devices that can exchange data and share resources with each other. These networked devices use a system of rules, called communications protocols, to transmit information over physical or wireless technologies.

What is computer network example?

A network is a collection of computers, servers, mainframes, network devices, peripherals, or other devices connected to allow data sharing. An example of a network is the Internet, which connects millions of people all over the world.

What are the 5 components of network?

A network has 5 basic components viz. clients, servers, channels, interface devices and operating systems

What is the basic of networking?

The foundations of networking: switches, routers, and wireless access points. Switches, routers, and wireless access points are the essential networking basics. Through them, devices connected to your network can communicate with one another and with other networks, like the Internet.

Why computer network is used?

The use of computer networks can overcome geographic barriers and enable the sharing of information. Computer networks enable the usage and sharing of any number of applications and services, including emails, video, audio and plenty of other types of data, over the internet.

What are the main uses of computer network?

Computer networks support many applications and services, such as access to the World Wide Web, digital video, digital audio, shared use of application and storage servers, printers, and fax machines, and use of email and instant messaging applications.

What is router computer?

A router is a physical or virtual appliance that passes information between two or more packet-switched computer networks. A router inspects a given data packet’s destination Internet Protocol address (IP address), calculates the best way for it to reach its destination and then forwards it accordingly.

What is topology network?

A network topology is the physical and logical arrangement of nodes and connections in a network. Nodes usually include devices such as switches, routers and software with switch and router features. Network topologies are often represented as a graph.

How many networks are there?

Today, the internet is made up of more than 40,000 different networks. These networks still communicate with each other using the TCP/IP standards Cerf and Kahn developed in the 1970s.

What is networking in computer PDF?

Networking is referred as connecting computers electronically for the purpose of sharing information. Resources such as files, applications, printers and software are common information shared in a networking.

What is switch in computer?

A network switch connects devices (such as computers, printers, wireless access points) in a network to each other, and allows them to ‘talk’ by exchanging data packets. Switches can be hardware devices that manage physical networks, as well as software-based virtual devices.

What are modems in networking?

Modem is short for “Modulator-Demodulator.” It is a hardware component that allows a computer or another device, such as a router or switch, to connect to the Internet. It converts or “modulates” an analog signal from a telephone or cable wire to digital data (1s and 0s) that a computer can recognize.

What is a star in networking?

A star network is a local area network (LAN) topology in which all nodes — personal computers (PCs), workstations or other devices — are directly connected to a common central computer that is often referred to as a hub. Therefore, a star network is often referred to as a hub-and-spoke network topology.

What is connecting devices in networking?

Computer Network Operating System. Network devices can relate PCs or other electronic tools to share documents or resources like printers or fax machines. Devices can install a Local Area Network (LAN) are the general type of network devices used by the public.

What is the difference between network and networking?

Definition. Network is a set of computing devices connected together for the purpose of sharing information and resources. Networking is the total process of creating and using computer networks, with respect to hardware, protocols, and software, including wired and wireless technology.