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CD and DVD
You must have seen these at your home or school. These
are circular in shape and have a shiny surface. You can
store a lot of data in them. CD stands for Compact Disc
and DVD stands for Digital Versatile Disc. CD DVD
Pen Drive
A pen drive has higher capacity than that of a CD or DVD. It is
so small that it can be carried around in the pocket.
Pen Drive
Memory Card
A memory card is also a storage device that is much smaller than a
pen drive or CD. A memory card is used in mobile phones, digital
cameras or similar devices to increase their storage capacity.
Memory card
Hard disk is another type of storage device that is fitted inside
the CPU box. It has the highest storage capacity.
Recap
We use a bag to store books, notebooks, pencil case, lunch box, etc.
We store our work on a computer using storage devices.
CD stands for Compact Disc.
DVD stands for Digital Versatile Disc.
A pen drive has higher capacity than that of a CD or DVD.
A memory card is used inside a mobile phone, digital camera, etc.
Exercise
A. Tick ( ) the correct option.
1. Which of these is usually fixed inside a digital camera.
a. b. c.
36 Modular (Ver. 1.1)-I

