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Optical Disc
An optical disc is an electronic data storage medium that can be used to
write and read using a low-powered laser beam.
Compact Disc (CD)
Compact Disc (CD) is an external storage device. It can hold upto
700 MB of data. The CD drive reads information stored on a compact
disc. CD drive is usually connected inside the CPU box but can also be
connected using a USB port. CD
Digital Versatile Disc or Digital Video Disc (DVD)
The DVD is almost similar to a CD, even the working is also similar. The only
difference is that it can hold more information than a CD. DVDs are widely
used for storing and viewing movies and other data.
Blu-ray Disc DVD
Blu-ray disc is an optical disc. It is used for storing a large amount of
data. The main difference between DVDs and Blu-ray discs is that storage
capacity of blu-ray disc is higher than that of the DVD.
Blu-ray Disc
Flash Drive
The Flash Drive is a small portable data storage device integrated with a USB (Universal Serial
Bus) connector.
Pen Drive
It acts as a portable hard drive and is easy to use as it is small and can be
carried in a pocket and plugged into any computer with a USB drive. Pen drive
has storage capacity of upto 1TB.
Pen drive
Memory Card
It is commonly known as multimedia memory card. It is very small
in size usually 1—1.5 inches. These are used in mobile phones and digital
cameras. You need to have a card reader to read the stored data on a
memory card.
Memory card
Let’s PraCtiCe Experiential Learning
Visit your computer lab and find out what storage devices are available and also check how
much storage it displays. Do this under your teacher's guidance.
44 Premium Edition-VII

