What is a network?
A network is a group of computers connected, users can share information and equipment.

Size Network
A network can be of any size. For example, to connect two computers at home, so they can exchange data creates a network simple. Companies may networks composed of a few tens or hundreds of computers computers. The Internet is the largest network worldwide and connects millions of computers around the world.

The Logging
Network users are usually required to give recognition before accessing information on a network. This is known as registration. Each user must provide a user name and password to access a network. With this information, maintaining secrecy prevents unauthorized users from humans can access the network.

Transfer of information
You can use a network to exchange information with other people. Ant information in the form of data, such a document in a text, image, drawn in an application or images and information from a database. Before networks, people are often disks or other storage devices for exchanging information between computers running a slow and unreliable. With networks, exchange of information between computers is fast and easy.

Resource Sharing
Computers connected to a network that can be share-art facilities and equipment, the so-called resources. The ability to share resources, the cost of computer equipment, buy it. For example, instead of buying a printer for every person in a network can be a central part of each printer.

The sharing programs
Networks of the population access to programs stored on a central computer, such as spreadsheets or text asa. Individuals can use their own computers to access and work with the programs. Thanks to the joint operation of a program, a company can prevent the installation of a copy of the program, every person on the computer.