Question

What is basic difference between ROM and PROM

Answer 1

ROM :-
1)Non-programmable.
2)Not flexible(because data can't be changed.
3)It is comparatively slower.
4)Economical only when produced in large volumes.
5)Used in PC's.
6)Writing of cell contains mainly done by 'masking; mechanisms.

PROM:-
1)Programmable.
2)Flexible(Field-Programmable i.e. can be programmed in any place of work).
3)It is comparatively faster.
4)Economical even when produced in small volume.
5)Mainly used for reserarche and development purpose.
6) Mainly done electrically.



HOPE U HAVE UNDERSTAND IT BETTER

Answer 2

short for programmable read only memory,a memory chip on which data can be written only once....
The difference between a PROM and ROM (read-only memory)is that a PROM is manufactured as blank memory ,whereas a ROM is programmed during the manufacturing process.