Recently, social networking sites are gaining immense popularity.
A social network is a site that visitors themselves are filling in. As a rule, social networks allow you to create a page with your data and correspond, exchange photos and videos with other members of the social network.
Social network involves mass. It is interesting when there is someone to communicate with – friends, acquaintances.
The most popular social networks:
VKontakte (135 million users)
Classmates (45 million users) Continue reading
Do you know what types of printers are?
There were no monitors before, and the information was printed exclusively on paper, so the printer can be called the first output device. But printers did not share the fate of typewriters, and today they remain an important device in our daily lives. Neither offices, nor offices, nor banks, nor cash desks do without printers. And many people in the house have their personal printer.
There are three types of home printers: dot-matrix, ink-jet and laser. Each of them has its own characteristics, its pros and cons. Continue reading