hardware

Question 1

what is the cpu?

Answer 1

brain of comp, carries out software instructions, processes data and instruction that are inputed

Question 2

what is a microprocessor?

Answer 2

type of integrated circuit on a single chip, made up of transistors capacitors resistors etc.

Question 3

components of the cpu (units)

Answer 3

ALU and CU

Question 4

components of the cpu (registers)

Answer 4

PC, MAR, MDR, CIR, ACC

Question 5

components of the cpu (buses)

Answer 5

data, address and control

Question 6

fetch decode and execute cycle steps

Answer 6

1- pc checked as holds instruction to be executed
2- adress copied to MAR
3-adress sent by adres bus to RAM
4- CU sends read signal along control bus to RAM
5- content sent by data bus to MDR
6-MDR copied to CIR
7- content of location into CPU accumulator
8-adress sent to MAR
9-address sent by address bus to RAM
10-CU sends read signal to RAM
11-contents storied sent to MDR and then copied to accumulator

Question 7

what affects cpu performance

Answer 7

number of cores, size of cache and speed of clock

Question 8

instruction set?

Answer 8

list of all commands that cen be acessed by a cpu