The CPU contains two main components - the control unit and the arithmetic logic unit. The control unit coordinates all computer activities and passes instructions to the ALU for arithmetic and logic operations. The CPU also contains registers for temporarily storing instructions and data during processing. Common types of memory include ROM for basic input/output and RAM for user programs and data, which the CPU can access much faster than the hard disk. Major CPU manufacturers include Intel, AMD, and Motorola, and some important CPU models introduced over time are the 8086, 80286, 80386, 80486, and Pentium.

1. By Israt Jahan
& Md.Hafizul Islam

2. What is CPU???

4. Components of CPU:

5. BLOCK DIAGRAM OF CPU:

6. CU (Control Unit):
All the computer’s resources
are managed from the control
unit. The function of control
unit is to coordinate with all
the computer activities. The
control unit contains the
CPU’s instructions for
carrying out commands

7. When the control unit
encounters an instruction
that involves arithmetic or
logic operation, it passes
control to the second
component of the CPU,
the arithmetic/logic unit
(ALU).
The CU and ALU
are in the CPU.

8. Registers:
Special-purpose
High-speed
Temporary storage
Located inside CPU Instruction register:
Holds instruction
currently being
executed
Data register:
Holds data waiting to be
processed
Holds results from processing

9. Types of Memory:
ROM - Read Only Memory
(contains the basic input output
system or BIOS)
RAM - Random Access
Memory
(user programs and data go
here)

10. The ROM is nonvolatile because it will not
lose its contents when powered down.
RAM plugs into sockets on the motherboard.

11. The CPU can read RAM much faster than it can the hard disk.

12. CPU Manufacturers:
•Motorola
•AMD
•Cyrix
•Intel

13. • 8086
1978
• 8088
1979
• 80286 1982
• 80386 1985
• 80486
1989
• Pentium
1993
• Penium Pro
1995
• Pentium II
1997
CPU Models: