This presentation summarizes the evolution of microprocessors from mechanical to electrical to microprocessor ages. It discusses early mechanical calculators like the abacus. The first electronic computers included the Z3 in 1941 and ENIAC in 1946. Major early microprocessors included the Intel 4004 in 1971, the first microchip. Later microprocessors like the Intel 8085, 8086, 80386, 80486 and Pentium increased processing power and memory capacity. The presentation provides details on the specifications and impact of these processors in driving technology forward.

1. Presentation
on
The Evolution of Microprocessor
Name : Farah Nawar
ID : 11608001
Department of
CSE,Comilla University

2. Mechanical age
 Invention of abacus, the first
mechanical calculator in 500 BC
Blaise Pascal's invention of mechanical calculator constructed of
gears and wheels in 1642.
 Programmable calculating
machine, which was known
as Analytical Engine was
proposed by Charles Babbage
in 1823
Fig.1.Abacus
Fig2.Analytical engine

3. Electrical age
 The first electronic calculating
machine, the Z3, was invented
by Konrad Zuse in 1941
 The first general purpose
programmable electronic
computer system, ENIAC
(Electronics Numerical
Integrator and Calculator)
was developed in1946
Fig4.The Z3
Fig5..ENIAC

4. Microprocessor age
1. Intel 4004
2. Intel 8008
3. Intel 8080
4. Intel 8085
Early microprocessors
Advanced microprocessors
1. Intel 8086/8088
2. Intel 80286
3. Intel 80386
4. Intel 80486
5. Pentium

5. Intel 4004
World’s First microprocessor
Year of introduction: 1971
4 bit memory location
45 instructions
PMOS technology
Targeted use: Calculators
Fig6.Intel4004

6. Intel 8085
Year of introduction:1975
8 bit microprocessor
64 kb main memory
1.3 microseconds clock cycle
246 instructions
Uses only +5v power supply

7. Intel 8086/8088
Year of introduction :
1978 for 8086 and
1979 for 8088
16 bit microprocessor
1 mb main memory
400 nanosecond clockcycle time
More registers and editional instruction
In 1991 IBM decided to use
it in its persona; computer

8. Intel 80386
Year of introduction:1986
4 GB main memory
Page handling in virtual machine
Includes hardware circuitry for memory management
and memory assignment
 Memory paging and enhanced I/O operation

9. Intel 80486
Year of introduction : 1989
32 bit microprocessor
4 GB main memory
8K byte catch on one package
About half of the instructions
 executed in 1 clock cycle,
 instead of 2 on 80386

10. Pentium
 Year of introduction :1993
 32 bit microprocessor,64 bit microprocessor
And 32 bit address bus
 4GB main memory
 Double clocked 120 and 133MHz version
 Fastest version is the 233 MHz, Dual Integer
processor

11. Pentium Pro
 Year of introduction :1995
 32 bit microprocessor
 64 GB main memory,64 bit data bus and 36 bit
address bus
 Uses three execution engine
 Intel launched this for server market

12. Pentium Xeon
 400 MHz Pentium processor for use in workstations
and enterprise servers.
Designed for multimedia applications, engineering
graphics, Internet and large data base servers.

13. Thank you