Computers - HW 3.

Computers - HW 3.

9. How do computers help us?

Air traffic, railway traffic, ship traffic and military operations as well as complicated surgical operations can be hardly performed without use of computers. In factories - CAD (computer-aided design), CAE (computer-aided engineering), CAM (computer-aided manufacturing). In offices - Office pack serves for administrative work. In banks – to carry out complicated financial transactions at high speed. In sports - to record results of competitions, current positions of sportsmen / riders. Entertainment – games, song lyrics, music, animation. Communication – to connect people around the world (Internet, e-mail).

10. How can computers be misused?
Shooting and adventure games have a bad influence on children – they instruct them how to be aggressiveand violent. Computers can be misused by robbers to make illegal transactions of large amounts of money. By hackers who via Internet break into your computer, steal your personal data and misuse them, who produce computer viruses which can cause the collapse of big companies. By terrorists to plan & perform terrorist actions (the attack of Al Kaida on the World Trade Center).

11. What computer companies are most famous on the market?
IBM, Microsoft, AMD, Intel, Hewlett & Packard, Toshiba, Cannon, Epson…

12. How many bits can a microprocessor work with at a time?
8, 16, 32, 64 bits

13. What influences the performance of a computer?
The speed of its microprocessor.