A computer is an electronic device that accepts data as input, processes it, and produces output. It has four main functions: input, processing, output, and storage. Hardware refers to the physical components like keyboards, monitors, and hard drives. Software gives computers their functionality and includes operating systems, applications, and utilities. The central processing unit controls the main components and allows data and instructions to flow through the computer.

2. A Computer is an Electronic Device that accepts
Data from the User, Process it and Produces
Information to the User. (or)

3.  A Computer is an advanced Electronic Device that
takes raw Data as Input from the User and Processes
these Data under the control of set of Instructions
(called Program) and gives the result (Output) and
saves Output for the future use.
 A Computer has Four Functions:
accepts data Input
processes data Processing
produces output Output
stores results Storage

4.  HARDWARE = Input Devices + Output Devices + Peripheral
Devices
All Physical Parts of the Computer (or everything that we can
touch) are known as Hardware.
 SOFTWARE = Programs
Software gives "intelligence" to the Computer.
 USER = Person, who operates Computer.

6. BASIC COMPONENTS OF COMPUTER
HARDWARE SOFTWARE
INPUT
DEVICE
OUTPUT
DEVICE
SYSTEM
SOFTWARE
APPLICATION
SOFTWARE
UTILITIES
PERIPHERAL
DEVICE

7. Hardware refers to the Physical Parts of a
Computer that you can touch and feel. Example:
Keyboard, Mouse, Printer, Hardisk etc.
HARDWARE
INPUT
DEVICES
OUTPUT
DEVICES
PERIPHERAL
DEVICES

11. COMMAND : A Command is a Single instruction
given to the Computer.
PROGRAM : A Program is a set of instructions given
to the Computer.
SOFTWARE : A Software is a set of related
Programs. It is the Software due to which the
Computer works.

12. SOFTWARE
SYSTEM
SOFTWARE
APPLICATION
SOFTWARE
UTILITIES

19. OUTPUT UNITINPUT UNIT
MEMORY UNIT
CONTROL UNIT
ARITHMETHIC AND
LOGIC UNIT
CENTRAL
PROCESSING
UNIT
Data Flow
Instruction Flow

27. Geop Byte is The Highest Memory Measurement
Unit!!!
Geop Byte

30. RAM ROM