Inside Cpu Flashcards
1
Q
CPU
A
Central processing unit
Carries out program instructitons using data
2
Q
ALU- aritthmetic logic unit
A
Carries out maths and logic calculations
3
Q
CU- Control unit
A
Coordinates the FE cycle and decodes instructions
4
Q
Cache
A
Small fast memory that holds frequently used items
5
Q
Registers are
A
MAR, MDR, PC, accumulator
6
Q
MAR- memory adress register
A
Holds the address of where its being fetched from
7
Q
MDR- memory data register
A
Instruction or data to be fetched
8
Q
PC- program counter
A
Address of next instruction to be fetched from memory
9
Q
Accumulator
A
Holds results from ALU
