microprocessor and about it

1. QUAID E AWAM UNIVERSITY OF ENGINEERING ,SCIENCE AND
TECHNOLOGY,CAMPUS LARKANA
DEPARTMENT OF ELECTRONIC ENGINEERING
Name: Adil Hussain
Roll No: F-18ESL-36
Subject: Microprocessors & Microcontrollers

3. Microprocessor is an electronic chip, that function as the Central
Processing Unit (CPU) of a computer.
 The word microprocessor comes from the combination micro and processor .
 Where micro means small in size and processor is a device that process or
manipulate numbers, specifically binary numbers (o’s or 1’s). According to
instruction (program) stored In the memory .
 Microprocessors contains both combinational logic and sequential digital
logic.

4. Microprocessors is a multipurpose, Programmable, clock
driven , register based , digital integrated circuit that accepts
binary data as input, processes it and according to instructions
stored in its memory and provides results as output.
 Programmable: Perform different set of operation on the data
depending on the sequence of instructions supplied by the
programmer.

5.  Clock Driven: Microprocessor is a device which executes in
sequential order. In order to correctly execute the instruction,
microprocessor follows certain steps: fetch , decode and executes . And
in order to correctly follow those steps , microprocessor needs to
activate different components in different time. And how does
microprocessor know when to do what ? It uses clock.
 Register based : storage based.

6. Examples where Microprocessor used
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2
3
4 Washing machines etc.
Mobile phone
TV remote control
Laptops / computers

7. Evolution of Microprocessor
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2
3
4 32-bit microprocessors
4-bit microprocessor (4004)
8-bit microprocessor (8008)
16-bit microprocessors

8.  The first microprocessor was introduced in 1971 by Intel crop . It was
named Intel 4004 as it was a 4 bit processor . It was a processor on a
single chip . It perform simple arithmetic and logic operations such as
addition, subtraction , Boolean AND, Boolean OR.
 The first 8 bit microprocessor which could perform arithmetic and logic
operations on 8 bit words was introduced in 1973 again by Intel.
This was Intel 8008 and was later followed by an improved
version, Intel 8008,8005 in 1977 some other 8 bit processors are
Zilog-80 and Motorola M6800

9.  The 8 bit microprocessors were followed by 16 bit processors.
They are Intel 8086 in 1978 and 80286.
 The 32 bit microprocessors were introduced by several
companies but the most popular one is Intel 80386.

10. In all processor 8085 and 8086 are the most
successful commercial processor introduced by Intel .
8085 is a complete microprocessor but not more
powerful and 8086 is the most powerful
microprocessor.

11. Thank you