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					The term memory refers to a chip that stores data. The data is retrived
from the memory by the microprocessor for processsing when required.
When we store data and information in the computer it is saved in the
memory. Memory can be divided into two types, volatile memory and non-
volatile memory. Volatile memory stores data temporarily and it loses the
data as soon as the power supply is turned off (ex-RAM). Non-volatile
memory stores data permanently and it does not lose the data even when
the power is turned off.

Further we can   divide physical memory into two types, they are primary
and secondary.   Primary memory are of two types :
<br><b>RAM</b>   (Random Access Memory)
<br><b>ROM</b>   (Read Only Memory)

The different types of ROM are:
<br><b>PROM</b> (Programmable Read-Only Memory)
<br><b>EPROM</b> (Erasable Programmable Read Only Memory)
<br><b>EEPROM</b> or <b>Flash ROM</b> (Electrically Erasable Programmable
Read Only Memory)

Secondary Memory are Hard Disk Drives, Floppy Drives, DAT, ZIP Drives
etc.

				
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posted:6/30/2011
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Description: Know About Different Computer Parts