1. There are two buttons and a scroll wheel on the top of the mouse.
2. There was not much difference in price between the two notebooks.
3. Computer experts consider that there will be about 900 million Internet users worldwide by the end of 2010.
4. At the beginning of the 1970s, there were two types of computers available. There were room-sized mainframes, which cost hundreds of thousands of dollars. There were also smaller, cheaper, mass-produced minicomputers, which cost tens of thousands of dollars.
5. There will be a live chat forum on web design (=creation of websites) at 9 p.m.
6. There was not enough memory available on the hard disk to install the program.
7. There are several devices, which help to enter information into the computer.
8. There will be a discount of 7 percent on this computer if you buy it before January 31.
9. There is a special switch on the computer keyboard that regulates the work with Russian and Latin alphabets.
10. There were two versions of the game available, a long one and a short one.