School project on Computer components

1. COMPUTER COMPONENTS
SHUBHANK GUPTA
CLASS : IX C
ROLL NO : 28

3. INPUT DEVICES

4. Light pen is an input
device that is used
with a cathode –ray
tube (CRT) display
to point items on
the screen or draw
new items or
modify the existing
ones.
The computer mouse
is an electro-
mechanical hand-
held device used
along with a
keyboard. It moves
an arrow or pointer
around the screen
Keyboard is the most
common input
device. Data such as
text and commands
can be entered into a
computer by
pressing the keys on
the keyboard.
A touch screen is a
computer display
screen that serves as
an input device ,
allows the user to
interact with a
computer by using
their fingers

5. Scanner is an
optional input
device that
allows
information such
as an image or
text to be input
into a computer
Graphic tablet is a
hardware input
device that
enables an artist
to draw or sketch
digitally using a
pen or stylus.
A joystick is a
computer device
consisting of a
handheld stick that
moves and
transmits position
to a computer.
A bar code reader is
a hand held input
device. It scans the
information on the
bar codes and
transmits them to
the computer

6. The digital camera
is an input device
mainly used to
capture images, It
takes still
photographs,
stores and sends it
as digital input to
the computer
Magnetic reader is an
input device that
reads a magnetic
strip on a card. It is
handy and data can
be stored and
retrieved.
MICR is a character
recognition
technology used
primarily by the
banking industry to
facilitate the
processing of cheques.
Smart Card:This input
device stores data in a
microprocessor
embedded in the card.
This allows
information , which
can be updated , to be
stored on the card

7. It is digital camera that is
connected to the computer and
can send live picture from
anywhere to another location by
means of internet. It is mainly
used for live video chat session.
A micro phone is a device that
converts sound waves into
analogous electric waves,
which the computer can
understand . It allows
computer to input audio into
their computer

8. OUTPUT DEVICES

9. Speaker are the
most common type
of audio output
device that allows
you to listen to
voice like music and
conversation with
people.
Headphones are also
commonly used audio
device sometimes
referred to as
earphones that plugs
into the line out port of
your computer and
allows you to listen to
audio.
LED/LCD monitor is
useful for displaying
graphic and images
in which color play
an important role
A printer is an
output device that
produces a printed
copy of text or image
i.e. what you have
been doing on the
computer

10. STORAGE

11. Types of
Storage
Primary
Storage
Secondary
Storage
Cloud Storage
Offline
Storage

12. *RAM is working
memory, which
stores data during
and after
processing
*ROM it is type of
memory
permanently
stored inside the
computer
A floppy disk is a soft
magnetic disk that is
the oldest type of
storage device. A
3.5” floppy disk can
hold 1.44 MB of data
• CD is a plastic optical
disc with a metalized
surface that is used for
digital audio/video
and data storage. It
can store up to 700
MB of data.
• DVD can store 4.7 GB
data and is much
faster than CD
The hard disk drive
is the main and
usually largest, data
secondary storage
hardware device in
a computer. Hard
disk hold more data
and are faster than
floppy disk

13. A pen drive is a
portable USB
flash memory
device for
storing and
transferring
audio, video and
data files from a
computer
An external drive is
just a hard drive
that is connected
to a computer on
the outside rather
than on the inside.
It generally have
high storage
capacity.
A memory card is
a small medium
used to store data
such as text,
pictures, audio,
and video for
small ,portable or
remote
computing
devices.
Cloud storage is a
model of
networked online
storage where data
is stored in
virtualized pools of
storage that are
generally hosted by
the third party.

14. BIBLIOGRAPHY
• Computer Applications : Brainwave Informatics Publishing Company
• Google.com (Images used in slides)
• https://byte-notes.com/five-basic-components-computer-system/

15. THANK YOU