CPU(central Processing Unit)

Ghazanfar Sajjad 2239

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

2. CPU Central Processing Unit

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

4. 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.

5. HISTORY OF CENTRAL PROCESSING UNIT

6. In 1940,Mathematicians: John Von Neumann J.Presper Eckert John Mauchly Came up with the concept of the stored instruction digit al computer.

7. 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

8. 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.

9. 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

10. Components of CPU : Arithmetic Logic Unit Control Unit Memory Unit / Register

11. Arrangement of Components :

12. 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

13. Arithmatic Logic Unit(ALU): It performs two types of operations . Arithmatic operations Logical operations

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

15. Logical Operations: Logical AND Logical OR Logical NOT Logical Exclusive OR

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

17. Function of The CPU

18. 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.