Microprocessors

Question 1

What are the 3 sectors of microprocessors?

Answer 1

-General purpose microprocessors e.g. PC
-Microcontrollers (Embedded control) e.g. Car engine management system
-Digital Signal Processors (DSP) e.g. Digital filter

Question 2

What 6 things does a microprocessor need?

Answer 2

-Power
-A signal
-External communication
-Address bus
-control bus
-data bus

Question 3

What are the two main microprocessor categories?

Answer 3

CISC - complex instruction set computer
RISC - reduced instruction set computer

Question 4

What is the difference between CISC and RISC microprocessors?

Answer 4

CISC takes several clock cycles to execute instructions and RISC is fewer.

Question 5

What is the purpose of memory?

Answer 5

to execute programs and store results.
-read and write memory

Question 6

How do microprocessors communicate with the outside world?

Answer 6

-Parallel interfaces
-Serial-/network interfaces

Question 7

How do microprocessors run programs?

Answer 7

Fetch instruction
Fetch operand
Execute instruction
Fetch next instruction

Question 8

What are the components of a microprocessor ?

Answer 8

-MPU
-Memory
-Input, output, interface

Question 9

Define word size of a microprocessor

Answer 9

The number of bits processed in a single instruction