SOFTWARE

Question 1

CPU

Answer 1

Central Processing Unit

key component of a computer which contains the circuits necessary to interpret and execute program instructions.

Question 2

PC

Answer 2

Program Counter

Question 3

CIR

Answer 3

Current Instruction Register

Contains the instructions that was copied from the MDR

Question 4

Von Neuman computer model

Answer 4

Where programs are held in memory and data is moved between memory and unit processor

Question 5

MAR

Answer 5

Memory Address Register

Records the address of the memory location for the current instruction given by the user

Question 6

MDR

Answer 6

Memory Data Register

Contains the contents at the memory location contained in the MAR

Question 7

Address bus

Answer 7

A bus that transfers data in many directions while specifying a physical address of the individual data block it needs in order to access the CPU

Question 8

ALU

Answer 8

Arithmetic Logic Unit

executes arithmetic and logic operations

Question 9

Control Bus

Answer 9

Used by the CPU to communicate with input/output devices that it needs to control

Question 10

Data Bus

Answer 10

Sends data between the processor, the memory unit and the input or output devices. It allows data to move in both directions