What is Network? Concept & Types of Computer Networks

COMPUTER NETWORKS:

Connection between two or more Computers, so that they can communicate with each other.

Types of a network:

Types of network are the following.

• LAN (Local Area Network)
• WAN (Wide Area Network)
• MAN (Metropolitan Area Network)

Local Area Network (LAN):

• LAN is a network that spans limited physical area.
• LANs are usually used for sharing printers, hard disk, hardware devices, and software applications (etc.).
• LAN is a high-speed connection.
• Used in small office, computers Labs.

 Wide Area Network (WAN):

• WAN is a Network that spans a large number of areas.
• It may operate nationwide or worldwide.

NETWORKING CONCEPTS:

Server:

• If a computer shares resources for other to use then it is called a server.
• Server are often more powerful, more faster, more memory and more disk space than client.

Client:

• When the computer access the resources form other, then we can say that is a client.
• Clients are usually less powerful, less memory, less speed and less disk space than server.

LAN Card or NIC Card (Network Interface Card):

• NIC card or LAN cards are used for data communication.

• LAN cards are used in Local Area Network.

Modem:

Modem is used to access internet and data communication in WAN.

Types of a network: