1.3 storage v3

1.3 storage v3

1. The purpose of ALU is in CPU is to perform arithmetic calculations

2. We use secondary storage to access it again later and to use software and interact with the computer

3. Optical magnetic durability reliability portability speed

4. A laser light creates marks on a disk in a pattern

5. A type of secondary storage which is suitable for a movie is optical

6. If secondary storage was not around we would have to install software each time we turn on the device

7. another name of secondary storage is aoxillary

8. One type of external secondary storage is CD