introduction to computer networks

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What is network?

Network is a collection of multiple devices"computers , routers , switchs" that connect to each other to share software and hardware resources.

Let's starting learning network now.

What are the components of network?

Nodes and Links are the basics building blocks in computer networking.Nodes refer to any equipment like "computer , routers".Links refer to the transmission media connecting two nodes . Links can be physical,cables, or free space ,wireless.Nodes follow a set of roles , protocols, that defines how to send and receive data via the links.

What are types of networks?

To achieve the different communication requirement, we create a lot of types for networks.

introduction to computer networks

Let's look into each of network types in details.

What is LAN?

LAN is designed for connecting multiple for connecting multiple devices within limited geographical distance"some meters" . The speed of data transmit is higher than other network types . LAN uses cables to connect devices , this makes data transmit more secure.

introduction to computer networks

Let's starting learning network now.

What is Metropolitan Area Network "MAN"?

MAN is used for a big geographical area like small city.MAN consists of many LANs .The connection is wire and wireless.

introduction to computer networks

What is Wide Area Network "WAN"?

WAN is designed to cover large distance like country . The connection is wireless.The speed of data transmit is slower than MAN and LAN.WAN used satellite to transmit data between multiple locations.

introduction to computer networks

Conclusion

Computer network is in where and has a lot of application like WWW "world wide web". there are a lot of information about networks so wait the next article.

Let's starting learning network now.

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