1.   Computers use a variety of formats for recorded sound.

2.   Computers used to fill up entire rooms.

3.   The computer uses extended memory.

4.   The computers used to be top of the line, but they have been superseded by more recent models.

5.   To store more data and programs when the power is off, most computers use magnetic discs.

6.   Computers used to frighten me, but not now.

7.   Admittedly the computer did use them to calculate the appropriate genetic formula for every point on the picture.

8.   These computers can use RAM instead of tape or disk as a non-volatile storage medium.

9.   An X-ray is taken from multiple angles and a computer uses that data to calculate a three-dimensional image.