id:

1. A byte is how many bits?

2. 5 bits coulds represent how many items?

3. True or false: A mercury thermometer is an analog device/ true false

4. Which of the following is not a secondary memory device

hard disk

ram

floppy disk (or usb drive)

magnetic disk (or dvd drive)

5. What does it mean that the main memory is volatile?

It changes all the time It is unstable It only exists when it has electricity It is very hot

6. The memory address is:

unique used to store and retrieve data at least 1 byte big all of the above

7. True or false: a megabyte is exactly 1,000,000 bytes. true false