WHAT IS COMPUTER NETWORK?

Network

is a collection of two or more computers, as well as others related devices, connected together so that information can be exchanged between or among them.

Advantages

  Reduce cost

 Increased Efficiency

Economical

More Productivity

Increased access to communication channels

More efficient patching of software

DISADVANTAGES

Network Failure

Server Error

Prone to hackers

Prone to virus

Location/Distance Problem

Network Media Type

Computer networks

can be built using either wired or wireless technology. Wire technology has been the traditional choice in home, but Wi-Fi wireless technology is quickly gaining ground.

Wired Network

Despite the proliferation of wireless data technology in the home, office, and mobile environment, having wired connection is still the most efficient and practical method of networking. It is important to keep in mind that whether wired or wireless, computer networking follows the same basic principles of sharing information and resources. Think of it as two different ways of achieving the same objective.

Wired connection

are typically used at the network core to interconnection servers and network equipment. It is more reliable over the long term, much faster and more economical. Wireless Technology is usually only used for connecting users to the network, especially for those who demand a certain degree of mobility such as laptop or tablet computer users who roam and transfer to different workplaces from time to time.

Types of Network

  PAN

 is a computer network used to interconnect devices  centered on an individual workplace.

  LAN

 is a type of network where two as much hundreds of computers are connected with each other using a network sharing device known as hub or switch to enable sharing of files, printers, and other resources.

 MAN

 A MAN is a LAN. It involves connecting several networks together that reside within a city, town, or metropolis. On a MAN, users may be several miles apart, but resources appear on the network just as if they were located within the same building.

WAN

 A network consisting of interconnected LANs over a very wide area reaching across continents.