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STORAGE DEVICES
The devices that are used to store data or information are called storage devices.
We can store songs, pictures, games, videos and many other forms of data on them.
The most commonly used storage devices are:
Hard disk: A hard disk is the main storage device fixed inside
the CPU box. It stores the largest amount of data as compared
to other storage devices.
Hard disk
Compact Disc or CD: A compact disc or CD is a flat, circular piece of
plastic with a shiny surface on one side. It stores less amount of data.
CD
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 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
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 wheels. Software are mainly of two types:
SOFTWARE
System Software Application Software
Hardware and Software 13

