RAM
i) It stands for random access memory.
ii) It is an optical disc, where data and information is stored permanently.
iii) RAM is the primary storage media.
iv) RAM is the primary storage device from which the system boots.
v) RAM is stored on RAM chip.
vi) The data or information stored on it can be written on or it can be erased.
ROM
i) It stands for read only memory.
ii) It is that part of CPU, where temporary information is stored.
iii) RIOM is the secondary storage media.
iv) System does not boot from ROM.
v) ROM is stored on a compact disc.
vi) The data or information stored on it neither be written on, nor it can be erased.