Page 15 - KEC Khaitan C3 Flipbook
P. 15
Digital Versatile Disc or DVD: A digital versatile disc looks like a CD
but can store six times more data than a CD.
DVD
Pen drive: A pen drive is a very small and a light portable device
that can store and transfer data from one computer to another.
A pen drive can store more data than a CD or DVD. It is also
Pen drive called a flash drive.
PURE
The first hard disk was introduced by IBM. It could store one MP3 song only. FACT
SOFTWARE
A computer hardware has numerous features, but it cannot perform a task until
certain instructions are given to it. Hardware needs step-by-step instructions to
perform a task. A set of instructions given to the computer to perform specific tasks
is called a Program. A collection of programs is called a Software. It also helps
the computer hardware to process the input and convert it into output. Without
software, a computer is like a car without fuel. Software are mainly of two types:
SOFTWARE
System Software Application Software
SYSTEM SOFTWARE
System software is a set of programs that control the overall functioning of a
computer. They are designed to operate, control, and run a computer's hardware
and application programs.
When we switch on a computer, the system software prepares the computer for you to
work on it. It loads important files so that you can work and run the application software.
The operating system is an example of system software. Without an operating system,
a computer cannot function. It acts as a manager between the computer hardware and
the user. Microsoft Windows is the most popular operating system available today.
Hardware and Software 13

