Ghazanfar Sajjad 2239

2. Topic: CPU $ Types
Group Member:
 GHAZANFAR SAJJAD
 M. Tabish
 Ejaz Ali

3. CPU
Central Processing Unit

4. CONTENTS:
What is CPU ?
History of CPU.
Component of CPU.
Function of the CPU.
Types of The CPU.

5. What is CPU :
 CPU is the Heart and Brain of a Computer.
 It receives data as input.
 The Central Processing Unit (CPU) is Simply the
central processor or The processor where mosty
calculation takes places
 CPU is the main important part of Computer.

8. HISTORY OF CENTRAL
PROCESSING UNIT

9. In 1940,Mathematicians:
 John Von Neumann
 J.Presper Eckert
 John Mauchly
Came up with the concept
of the stored instruction
digital computer.

10. In 1940 – 1956
Vacuum Tubes and Magnetic Drums for
memory
In 1956 – 1963 Transistors
In 1964 – 1971 Integrated Circuits
In 1971 – Present Microprocessors
In Present and Beyond Artificial Intelligence

11. On 1970's a component of mainframe computer
known as CPU is a steel cabinet
bigger than a refrigerator full of
circuit boards croweded with
transistor.
In 1971 the 4004 was the 1st 4-
bit Microprocessor invented.

12. In 1972, the 8008 was the 1st 8-bit
microprocessor to fuel
the home computer
revolution.
In 1979, intel delivered
the 8088 and IBM
engineers used it for the 1st
PC. From 8086

13. Components of CPU :

14. Arrangement of Components :

15. Control Unit (CU)
 It reads instruction from memory and transforms
then into a series of signals to activate other parts
of computer.
 Controls the operation that takes place in various
parts of a copmuter by sending electronic sihnals

16. Arithmatic Logic Unit(ALU):
It performs two types of operations.
1.Arithmatic operations
2.Logical operations

17. Arithmatic Operations:
It performs mathematical operations
Operation : Symbols
Addition : +
Subtraction : _
Multiplication : *
Division : /

18. Logical Operations:
Logical AND
Logical OR
Logical NOT
Logical Exclusive OR

19. Memory Unit(MU/Register):
Is the part of the computer that
holds data and instructions for
processing.

20. Function of The
CPU

22. Fetch
Taking the data being instruction from the instructed memory
Decode
Translaring and decoding Assembly code into binary form
instruction which are understandable to CPU.
Execute
Execute Caculations move data and jump to different address
Store
After executing the data or instruction store.