ANSWER : 4 EEPROM

Explanation : : EEPROM is the type of memory whose contents is erased with the passage of electiricity.

ANSWER : 4 System bus

Explanation : : System bus is not a part of a cpu .

ANSWER : 1 To allow the CPU wait for a busy device

Explanation : : Busy waiting is to allow the CPU wait for a busy device.

ANSWER : 5 Information between I/O devices and CPU.

Explanation : : Memory mapped I/O involves transferring information between I/O devices and CPU .

ANSWER : 5 Access time.

Explanation : : Access time.