The document defines and describes the basic components and operations of a computer system. It explains that a computer is an electronic device that takes input from users, processes it, and provides output. It then describes the basic operations of input, processing, and output. It defines the central processing unit (CPU) as the computer's heart and brain and describes its main components and functions. It also defines and distinguishes between the main types of computer hardware, software, memory, and input/output devices.

1. 

2. WHAT IS COMPUTER?
The term computer is
derived from the word
compute which means
to calculate.
Computer is a
electronic device
which takes input from
the users and after
processing it, it gives
the required output inBack

3. BASIC OPERATIONS OF
COMPUTER
INPUT OUTPUTPROCESS
Input: Taking input in form of
instruction and data.
Process: Processing the instruction
and data and storing the result.
Output: Display the stored results or
output it into the print format.
Next

4. CPU
Central processing unit if the
heart of the computer and also
called as microprocessor.
CPU is made of thousands of
transistors which is used to
switch and amplify electronic
signals.
CPU is divided into 4 units:
I. Control Unit.
II. Arithmetic logic Unit.
III. Memory Unit.
IV. Backing Storage.Back

5. MEMORY
Memory is the unit that communicate
directly to the CPU is called the
main memory.
There are two types of memory:
I. Primary Memory
II. Secondary Memory
Go To Computer
Memory Units

6. Compute
r
Hardwa
re
Softwa
re
System
Software
Application
software
Input
Devices
Output
Devices
Processing
Device
CP
U
Operating
Software
Language
Translator
EX:
Windows
Compiler
Ex: MS-
Word
Utility
software
Ex:
Norton
Antiviru
s
Keyboard
Mouse
Touchpa
d
Joystick
Touch
screen
Scanner
Micropho
ne
Barcode
Reader
Printer
Projector
LCD
Plotter
Monitor

7. HARDWARE
 The physical Components of computer
system is called hardware.
 Hardware is of three types and they
are:
1) Input Devices
2) Output Devices
3) Processing Device
Back

8. SOFTWARE
 Software is a set of instructions that directs
the computer to process information.
 Software are of three types:
Back
Software
Application
software
System
software
Utility Software

9. SYSTEM SOFTWARE
 This software is used by the system. System
Software is also the Different operating system.
 For example:
i. Windows XP/ Vista/ 7/ 8/ 8.1/ 10
ii. Linux
iii. DOS
iv. Unix
v. Language Translator i.e. Compiler
Back

10. UTILITY SOFTWARE
 It is used for the management of computer
hardware and application software installed on a
computer.
 For example:
i. Disk Fragment
ii. Disk cleaners
iii. Backup Programs
iv. Anti-Virus programs
v. Disk File Recovery
Back

11. APPLICATION SOFTWARE
 It is set of programs designed for specific uses or to
perform specific tasks.
 For example:
i. Ms.- word
ii. Front Page
iii. GIMP
iv. Adobe Reader
v. Adobe Photo Shop
Back

12. COMPUTER MEMORY UNITS
 1 NIBLE=4 BIT
 1 BIT=0/1
 1 BYTE=8 BITS
 1 KB=1024 BYTES
 1 MB= 106
1 GB=1024 MB
1TB=1024 GB
1 PB=1024 TB
1 EB=1024 PB
1 ZB=1024 EB
1 YB=1024 ZB
Back

13. THANK YOU