1. Viewing and editing documents on screen can be much quicker than working on paper.
2. If you want to retrieve a file from the computer, press FIND and then enter the name of the file you need.
3. The surface of a floppy disk is divided into concentric circles or tracks, which are then divided into sectors.
4. There are door keys that activate the air-conditioning equipment and turn on an entry light, so guests never enter a dark and stuffy room.
5. About 25 % of manufacturers use the Net to introduce new products on the market.
6. The demo versions of various programs are distributed free via the Internet.
7. Arithmetic progression is a series of numbers that decrease or increase by the same amount each time, for example 2, 4, 6, 8.
8. DVDs have quickly become an extremely popular medium for film viewing.
9. Most people say they spend about 50% of their time online on work activities.
10. WAP [протокол приложений для беспроводной связи, протокол WAP] technology is a system that enables people to enter the Internet, using a mobile phone or other wireless device.
11. Fax machine is a machine that sends and receives documents in an electronic form along telephone wires and then prints them.
12. The computer experts are working now on improving the speech recognition systems i.e. the ability of a computer to recognize natural languages.