Раскройте скобки, употребляя:
A. Правильную неличную форму глагола
1. Computing is a concept embracing not only arithmetics, but also computer literacy.
2. We can make the computer do what we want by inputting signals without turning switches on and off.
3. Computers have a means of communicating with the user.
4. Computers work according to the instructions given to
it by users.
5. The transistor invented in 1948 completely changed the vacuum tubes.
Б. Глагол в действительном или страдательном залоге
1. Computers are applied for automatic piloting and automatic navigation.
2. The programs are written to help people in the use of the computer system.
3. As digital computers count quickly, they are widely used in business data processing.
4. Once data have been entered correctly into the data processing system, the possibility of error is reduced.
5. It is known that an analyst uses a computer to solve
specific problems.