CENTRAL PROCESSING UNIT :
CENTRAL PROCESSING UNIT CPU The central processing unit (CPU) is the portion of a computer system that carries out the instructions of a computer program, and is the primary element carrying out the computer's functions.
The form, design and implementation of CPUs have changed dramatically since the earliest examples, but their fundamental operation remains much the same.
Slide 3:
The CPU: It has five basic components. RAM
Registers
Control Unit
ALU
Buses A picture of an actual Central Processing Unit
RAM :
RAM RAM stands for RANDOM ACCESS MEMORY.
It is a form of data storage.
It stores program instructions and data.
Registers :
Registers A small amount of storage available on a CPU.
It’s content can be easily and more quickly accessed than storage available elsewhere.
Control Unit :
Control Unit A Control Unit is part of the machinery that controls its operation.
It Co-ordinates the input and output devices of a computer system.
ALU :
ALU ALU stands for Arithmetic Logic Unit.
is a digital circuit that performs arithmetic and logical operations.
Buses :
Buses A bus is a subsystem that transfers data between computer components inside a computer or between computers.
Any computer can be accessed directly and messages can be sent in a relatively simple and fast way.
Slide 9:
The End REMEMBER NOW RAM NOT RAM