||RAM stands for Random Access Memory
||ROM stands for Read Only Memory.
||RAM is a temporary memory.
||ROM is a permanent memory.
||RAM is a volatile memory.
||ROM is a non volatile memory.
||When computer is turned off, all data and programs are
erased from RAM.
|When computer is turned off, all data and programs are
retained in ROM.
||RAM is a Read / Write memory. Data can be read and written
|ROM is a read only memory. Data from ROM only can be read
and not written.
||Data and programs in RAM can be changed.
||The contents of ROM cannot be changed.
||Data or programs in RAM can be deleted.
||Contents of ROM cannot be deleted.
||The instructions and data are written (loaded) in RAM
at execution time, when computer is working.
|The instructions in ROM are written at the time of
||RAM is used to load data and programs currently running.
||ROM contains the instructions that help the computer to
start-up and make it ready for work.
||RAM is much faster than ROM.
||ROM is slower than RAM.
||RAM has two main types: Static RAM and Dynamic RAM
||ROM has three types: PROM, EPROM and EEPROM
||Physically RAM chip is larger than ROM chip.
||Physically ROM chip is smaller than RAM chip.
||Picture of RAM is:
||Picture of ROM is: