Page 11 - Modular_v4.0
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Chapter Profile
Speakers
Speakers produce music, speech or other sounds as output.
Headphones
Headphones are small speakers used to hear the sound without causing
disturbance to others.
Projector
A projector displays the output from the computer screen onto a
larger screen.
Clickipedia
Projectors are also used for Smartboards in schools.
Storage Devices
Storage devices are the hardware devices
used to store data. Once you have finished
working with your data, you can store the
data permanently in storage devices. Some
examples of storage devices are hard disk, Hard disk DVD Pen drive
DVD and pen drive.
If CPU is the brain of a computer, then which computer hardware is its ear?
SOFTWARE
Computer hardware cannot work by itself. It needs step-by-step instructions to perform a
task. These step-wise instructions are called software. The games you play on a computer
are examples of software. There are mainly two types of software: system software and
application software.
System Software
System software controls and manages the overall activities of a computer system. So, the
system software is like a manager of a computer system. Without system software, the
computer is like a car without a driver.
A Computer System 9

