Computer hardware refers to the physical components of a computer system and includes input devices, output devices, and the system unit. Input devices such as keyboards, mice, and scanners allow a user to enter information into the computer. Output devices like monitors, printers, and speakers display or present information to the user. The system unit contains the main components of the computer including the motherboard, memory, and hard disk drive, which are responsible for processing and storing data.

1. Computer Hardware
By:
Rameshwari Thakur
Roll.No: 273
BED- 205 ICT

2. Computer Hardware
Computer Hardware is the physical
components of the computer
Refers to the tangible (things you can
touch) components of a computer
system.

3. Hardware components are further
divided into three groups.
1. Input Device
An input device lets you communicate with a computer.You can use input
devices to enter information and issue commands.
2. Output Device
An output device displays information on a screen, creates printed
copies or generates sound.
3. System Unit
The system unit is the part of the computer which is responsible for
accepting and processing the data brought in by the input devices

4. Keyboard
Is a standard input device of
most computers.
Used to type data into the
computer.
Input devices
Microphone
Used to input sound
into a computer

5. Mouse
Mouse
is a hand-clicked
device used for
pointing and
moving objects
Joystick
Joystick
is an input device
which is
commonly used
for computer
games
Scanner
Scanner
A scanner allows
youto scan
documents,
pictures, or
graphics and view
them on the
computer.
Input devices

6. Printers : an output device that produces text and graphics on
paper
Inkjet
Printer
Laser
Printer
Impact
Printer
Output Devices
Monitor : The monitor is used to provide soft copy output.

7. SpeakerMultimedia Projector
Output Devices

8. Motherboard
The motherboard is the
main circuit board of a
microcomputer.
It is also known as the
mainboard or system board
Hard-Disk Drive
HDD is a storage device that
store billons of characters of
data on a nonremovable disk
System Unit

9. System Unit

10. The memory in a computer system is of two
fundamental types: The main/primary memory and
the secondary memory.
Memory
Primary Memory Secondary Memory
RAM HDD