A computer network is a system in which multiple computers are connected to each other to share information and resources.
Computer Network
Characteristics of a Computer Network
Share resources from one computer to another.
Create files and store them in one computer, access those files from the other computer(s) connected over the network.
Connect a printer, scanner, or a fax machine to one computer within the network and let other computers of the network use the machines available over the network.
Following is the list of hardware's required to set up a computer network.
Network Cables
Distributors
Routers
Internal Network Cards
External Network Cards
Network cables are used to connect computers. The most commonly used cable is Category 5 cable RJ-45.
Network Cables
Distributors
A computer can be connected to another one via a serial port but if we need to connect many computers to produce a network, this serial connection will not work.
Distributor
A router is a type of device which acts as the central point among computers and other devices that are a part of the network. It is equipped with holes called ports.
Router
Network card is a necessary component of a computer without which a computer cannot be connected over a network.
It is also known as the network adapter or Network Interface Card (NIC).
Network cards are of two types: Internal and External Network Cards.
Motherboard has a slot for internal network card where it is to be inserted.
Internal network cards are of two types in which the first type uses Peripheral Component Interconnect (PCI) connection, while the second type uses Industry Standard Architecture (ISA).
Internal Network Cards
External network cards are of two types: Wireless and USB based.
External Network Cards
USB card is easy to use and connects via USB port. Computers automatically detect USB card and can install the drivers required to support the USB network card automatically.