Digital Storage

Digital Storage
Storage is the area where data can be kept on a permanent basis, when it is not immediately needed for processing.

Digital Storage
Magnetic Tape (Sequential)
It is an example of old tape storage media to storage a large amount of data permanently Tape process of reading or writing of data on the tape is very Slow Data can only be accessed sequentially.
Magnetic Disk
It is most widely used storage media for all type of computer. Information can be recorded on or red form the Magnetic surface magnetic dais is a random access storage media.
Type of Magnetic Disk
These are the following types of the magnetic disk.
(01) Floppy Disk 1.44 MBs
(02) ZIP disk 100 MBs but have later version this to first 250 MBs and then 750 MBs.
(03) Hard Disk (1 TB or 1000GB)
Optical Disk
CD (Compact Disk)
CD is the most popular optical medium it can hold 650MBs to 800MBs of data. The data on the CD cannot be erased like magnetic diskettes.
DVD (Digital Versatile Disk / Digital Video Disk)
DVD also known as “Digital Versatile Disk” or “Digital Video Disk” is an optical disk storage media format. DVD storage more than six time as compared to CDs.
Blu-Ray
Blu-Ray disk contain 25GBs prepare with dual layer disk (50GBs). Triple disk (100GBs) and larch are available. High definition ultra-high vide may be stored on Blu-Ray disk with up to 2160 Resolution.
(344 X 2160 pixels)

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