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Plotter
A plotter is used to print big sketches, diagrams and maps on long sheets
of paper. They are used by engineers, architects, scientists and designers.
Monitor
A monitor refers to the display device that visually presents information and
output from a computer.
Projector
A projector projects or displays data of computer screen on a large screen
or display for audience.
Storage Devices
The devices that are used to store data are called storage devices. There are many storage
devices to store our data or work, so that we can get it back whenever we need it. Let us
discuss about some of the commonly used storage devices.
CD and DVD
The CD drive reads information stored on a Compact Disc (CD). CD is an external
storage device. DVD looks like a CD but can store much more data than a CD.
Pen Drive
Pen drive is a portable device and is easy to use. Its storage capacity is
more than that of a DVD.
Hard Disk
The hard disk is permanently fixed in the system unit. It can store maximum
data or work.
Hybrid Devices
A hybrid device is a gadget that can do more than one thing. It can act as both an input and an
output device.
Smartphone
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FaceTime Calendar Photos Mail
! A
A smartphone is a gadget that lets you do many things. You can type messages, take
Weather Notes Reminders App Store
Instagram Facebook X Whatsapp
pictures, and use apps (input). It also shows you videos, plays music, and makes calls
(output).
Headphone
Headphones are used to listen to music or sounds (output) without disturbing
others. It can also have a built-in microphone to talk or record your voice (input).
Computer Hardware and Software 13

