The _________ performs the computer's data processing functions.

• system bus

• Register

• ALU

• CPU interconnection

The method of calculating the EA is the same for both base-register addressing and indexing

• True

• False

The _______ holds the address of the next instruction to be fetched.

• MBR

• IR

• PC

• MAR

_______ are a set of storage locations.

• Registers

• Control units

• PSWs

• Processors

Interfaces between the computer and peripherals is an example of an organizational attribute

• True

• False

Which of the following memory types are nonvolatile ?

• erasable ROM

• programmable ROM

• flash memory

• all of the above

A _______ disk is permanently mounted in the disk drive, such as the hard disk in a personal computer.

• removable

• double sided

• nonremovable

• movable-head

A(n) ________ is generated by a failure such as power failure or memory parity error.

• timer interrupt

• hardware failure interrupt

• I/O interrupt

• program interrupt

The _______ determines the opcode and the operand specifiers.

• decode instruction

• fetch operands

• calculate operands

• execute instruction

I/O channels are commonly seen on microcomputers whereas I/O controllers are used on mainframes.

• True

• False