Monday, January 31, 2011

SECONDARY STORAGE

FILE COMPRESSION.
Files compressiong means saving the space of storage by compressing the data all together. A file compression can make a big file small so that it can be send to the internet faster

HEAD CRASH
A head crash means that, damages happen in the hard disk drive. This happen because the head od hard disc touch the magnetic surface and head crash happens

INTERNET HARD DRIVE
Internet hard drive is a memory located in the internet that can be used anywhere with out carrying anything. It is very cheap however some times it is slow

OPTICAL DISC DRIVE.
This is a normal disk which is also a secondary storage because it can save lot of things inside. It stores digital data such as video and it is use to read with a laser by scanning the disk. It is the most cheapest secondary storage device

SOLID-STATE STORAGE.     
Solid-State Storage is basicly things like memory card, memory stick etc. It stores data more faster. It is made up by things like transistor and chips and it is more expensive then anyother secondary storge device

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