Module 1-parts of computer and its functions

Apr 24, 20186 likes9,568 views

Charles Babbage invented the first mechanical computer called the Analytical Engine in the 1830s-1850s. A computer is an electronic device that can accept, store, and process information to produce required results. The main parts of a computer are the CPU (central processing unit), memory, input and output devices. The CPU contains the control unit and arithmetic logic unit and is responsible for processing data. Memory is used to store programs and data. Common input devices include keyboards and mice, while output devices include monitors and printers.

MODULE-1
PARTS OF COMPUTERS AND ITS
FUNCTIONS
PRESENTED BY
DR. RAJASHEKHAR SHIRVALKAR

Father of Computer
Charles babbage
Charles Babbage, a British Mathematics
professor, is regarded as the Father of
Computers. He was born in England in 1792 as
the son of a rich banker from Devon. He invented
the first mechanical Computer during the period
1830 to 1850. This computer called as
Babbage’s Analytical Engine performed basic
function. This is
used in modern computer
design, so he is known as
Father of computer.

The word computer is been derived from the
word compute which means to calculate.
Computer is a calculating device which perform
Arthemetic operations at enormous speed.
In simple words we can say, computer is a
calculating device that reduces 80% of work.

DEFINITATION
 A computer is a electronic device that
can accept, store and process
information to produce the required
result.
 A computer is an electronic machine
which can do calculations very fast.

FUNCTIONS OF COMPUTER
Storage
Data
process
ing

DATA PROCESSING
Performing
calculations.
Performing
logic/comparing
data.
Graphic Action.
Production of
data.
Communication.

PERSONAL COMPUTER
MONITOR
MOUSE
KEYBOARD
CPU

BLOCK DIAGRAM OF COMPUTER
ORGANIZATION.
INPUT OUTPUT
MEMORY
ALU
CU
CPU

INPUT
Input devices are used to input data
and instruction into the computer.
These devices are used as mediator
for communication between user
and computer.
EX: Keyboard, Mouse etc.

CPU: CONTROL PROCESS UNIT.
 CPU is the most important part of the system
and also known as BRAIN of computer.

FUNCTIONS OF CPU
To accept data and instruction.
To store data and instruction.
To control the sequence of operation.
To carry out process.

MEMORY
Memory is used to store the
information consisting of programs and data. It
is made up of number of LSI chips, each
memory chip can store thousands of bits of
information.

.
Types of
memory
2.Secondary
memory
1.Primary
memory

Primary
memory
• Primary memory is
also called as main
memory or semi
conductor memory. It
is small in size and
store the input data
instructions inside
the system unit.
• Ex: ROM and RAM.

Secondary
memory
• The secondary
memory is out side
of the system it is
also called as the
external memory. It
store more
information.
• Ex: Floppy Disk,
Hard Disk and CD
Roms.

ALU: Arithmetic logic unit.
An ALU is the part of CPU. It performs all the
Arithmetic operations like +, -, *, / and logical
operations like <,>,=,%,#, when two numbers are to
be subjected to any Arithmetic or Logic operation,
they are send to ALU from the memory and after
the operations are over, the result are put back to
the memory.

The main purpose of ALU
 It performs mathematical functions.
It performs logical comparisons.
It performs output variable functions
also as logical functions.
It does branching on prefixed
conditions.

CU: CONTROL UNIT.
CU is the most important part of CPU. It
acts as a central system, as it control and
supervises all the activities of input and
output devices.

The main purpose of CU
It maintains order and controls activity in
CPU.
It does not process a stored data.
It directs sequence of operations.
It interprets instructions and gives
commands.
It communicates with input/output devices
for transfer data/results from storage.

OUTPUT
The device use to obtain information from
CPU and gives the resultant product as
output.
Ex: LCD or VDU, Printer Projector etc.

WORKING OF COMPUTER.
INPUT
PROCESS
OUTPUT

 It is also called as I-P-O cycle.
 This example would help in understanding I-P-O
cycle.
• Milk
• Sugar
• Coffee
powder
INPUT
• Boiling
PROCESS
• Coffee
OUTPUT

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Module 1-parts of computer and its functions

1. MODULE-1 PARTS OF COMPUTERS AND ITS FUNCTIONS PRESENTED BY DR. RAJASHEKHAR SHIRVALKAR

2. Father of Computer Charles babbage Charles Babbage, a British Mathematics professor, is regarded as the Father of Computers. He was born in England in 1792 as the son of a rich banker from Devon. He invented the first mechanical Computer during the period 1830 to 1850. This computer called as Babbage’s Analytical Engine performed basic function. This is used in modern computer design, so he is known as Father of computer.

3. The word computer is been derived from the word compute which means to calculate. Computer is a calculating device which perform Arthemetic operations at enormous speed. In simple words we can say, computer is a calculating device that reduces 80% of work.

4. DEFINITATION  A computer is a electronic device that can accept, store and process information to produce the required result.  A computer is an electronic machine which can do calculations very fast.

5. FUNCTIONS OF COMPUTER Storage Data process ing

6. DATA PROCESSING Performing calculations. Performing logic/comparing data. Graphic Action. Production of data. Communication.

7. PERSONAL COMPUTER MONITOR MOUSE KEYBOARD CPU

8. BLOCK DIAGRAM OF COMPUTER ORGANIZATION. INPUT OUTPUT MEMORY ALU CU CPU

9. INPUT Input devices are used to input data and instruction into the computer. These devices are used as mediator for communication between user and computer. EX: Keyboard, Mouse etc.

10. Keyboard Mouse Input devices

11. KEYBOARD OTHER INPUT DEVICES

12. CPU: CONTROL PROCESS UNIT.  CPU is the most important part of the system and also known as BRAIN of computer.

13. FUNCTIONS OF CPU To accept data and instruction. To store data and instruction. To control the sequence of operation. To carry out process.

14. CPU MEMORY CUALU

15. MEMORY Memory is used to store the information consisting of programs and data. It is made up of number of LSI chips, each memory chip can store thousands of bits of information.

16. . Types of memory 2.Secondary memory 1.Primary memory

17. Primary memory • Primary memory is also called as main memory or semi conductor memory. It is small in size and store the input data instructions inside the system unit. • Ex: ROM and RAM.

18. Secondary memory • The secondary memory is out side of the system it is also called as the external memory. It store more information. • Ex: Floppy Disk, Hard Disk and CD Roms.

19.  CD Rom  Floppy Disk  Hard Disk

20. ALU: Arithmetic logic unit. An ALU is the part of CPU. It performs all the Arithmetic operations like +, -, *, / and logical operations like <,>,=,%,#, when two numbers are to be subjected to any Arithmetic or Logic operation, they are send to ALU from the memory and after the operations are over, the result are put back to the memory.

21. The main purpose of ALU  It performs mathematical functions. It performs logical comparisons. It performs output variable functions also as logical functions. It does branching on prefixed conditions.

22. CU: CONTROL UNIT. CU is the most important part of CPU. It acts as a central system, as it control and supervises all the activities of input and output devices.

23. The main purpose of CU It maintains order and controls activity in CPU. It does not process a stored data. It directs sequence of operations. It interprets instructions and gives commands. It communicates with input/output devices for transfer data/results from storage.

24. OUTPUT The device use to obtain information from CPU and gives the resultant product as output. Ex: LCD or VDU, Printer Projector etc.

25. WORKING OF COMPUTER. INPUT PROCESS OUTPUT

26.  It is also called as I-P-O cycle.  This example would help in understanding I-P-O cycle. • Milk • Sugar • Coffee powder INPUT • Boiling PROCESS • Coffee OUTPUT

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