Saturday 7 June 2014

difference between ram and rom?

RAM:

Random Access Memory or RAM is a form of data storage that can be accessed randomly at any time, in any order and from any physical location., allowing quick access and manipulation.
Random Access Memory
RAM allows the computer to read data quickly to run applications. It allows reading and writing.
RAM is volatile i.e. its contents are lost when the device is powered off.
The two main types of RAM are static RAM and dynamic RAM.

ROM:

Read-only memory or ROM is also a form of data storage that can not be easily altered or reprogrammed.Stores instuctions that are not nescesary for re-booting up to make the computer operate when it is switched off.They are hardwired.
Read-only memory
ROM stores the program required to initially boot the computer. It only allows reading.
It is non-volatile i.e. its contents are retained even when the device is powered off.
The types of ROM include PROM, EPROM and EEPROM.

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