KEY COMPONENTS OF A COMPUTER SYSTEM

A N D R E W L O L A V A R

CPU

• Brain

• Consist of

-arithmetic/ logic unit

-the control unit

ARITHMETIC LOGIC UNIT

• Peforms arithmetic computations and logical

Operations

CONTROL UNIT

• coordinates all of the CPU activities

MACHINE CYCLE

• a combination of

-the instruction cycle

-the execution cycles.

Main Memor

y

Control unitALU

INSTRUCTION AND PROCESS CYCLE

• Instruction cycle

-amount of time it takes to retrieve the instruction and complete the command

• Process cycle

-a cycle that includes decoding executing and storing