What is computer network
A computer network is a group of computer systems and other computing hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range of users. Networks are commonly categorized based on their characteristics.
There are 7 type of computer network
1.BAN (Body Area Network)
In a Body Area Network, also referred to as a wireless body area network ( WBAN) or a body sensor network (BSN), is a wireless network of wearable computing devices.
2.PAN (Personal Area Network)
In a Personal Area Network, computer network used for data transmission amongst devices such as computers, telephones, tablets and personal digital assistants.
3.LAN (Local Area Network)
In a Local Area Network, computers within a very close area are connected, such as within a room, a building or a campus.
4.CAN (Campus Area Network)
In a Campus Area Network, two buildings have the same domain and they are connected with a network, then it will be considered as CAN only.
5.MAN (Metropolitan Area Network)
In a Metropolitan Area Network, computers within a city are connected.
6.WAN (Wide Area Network)
In a Wide Area Network, computers across a country or beyond are connected.
7.SAN (Storage Area Network)
In a Stroage Area Network, network which provides access to consolidated, block level data storage. SANs are primarily used to enhance storage devices, such as disk arrays, tape libraries, and optical jukeboxes, accessible to servers so that the devices appear to the operating system as locally attached devices.