CPU

Question 1

What is the CPU.

Answer 1

The main part of the computer, consisting of the register, ALU and control unit.

Question 2

What is the main part of the computer, consisting of the register, ALU and control unit.

Answer 2

The CPU.

Question 3

what is Von Neumann Architecture.

Answer 3

Traditional computing architecture that forms a basis for most digital computer systems. Instruction are fetched, decoded and executed one at a time.

Question 4

MAR

Answer 4

Holds the address of data ready for the use by the memory register, or the address of an instruction passed from the program counter. Step 2 of the fetch, decode, execute cycle.

Question 5

MDR

Answer 5

Holds the data fetched from or to be written to the memory. Step 3 of the fetch, decode, execute cycle.

Question 6

PC

Answer 6

Program counter, holds the address for the next instruction. Step 1 of the fetch, decode, execute cycle.

Question 7

Accumulator

Answer 7

Holds the result of the calculation.

Question 8

ALU

Answer 8

Performs calculations and logic comparisons in the CPU.

Question 9

CU

Answer 9

Control unit, decodes instructions. Sends signals to control the how the data moves around the CPU

Question 10

Cache

Answer 10

Memory in the processor providing fast access to frequently used instructions and data

Question 11

F.D.E cycle

Answer 11

the complete process of retrieving an instruction form store, decoding it and carrying it out. It is also know as the instruction cycle.

Question 12

Clock speed

Answer 12

Measured in Hertz, the clock speed is the frequency at which the internal clock generates pulses. the higher the clock rate, the faster the computer may work. the Clock is an electronic unit that synchronises related components by generating pulses at a constant rate

Question 13

Cache size

Answer 13

A part of the main store between the central processor and the rest of the memory. It has extremely fast access, so sections of a program and its associated data are copied TO BE CONTIUED