Difference Between Static and Dynamic RAM

Hello friends, in this session we are going to discuss the difference between static RAM and dynamic RAM. This memory is a part of primary memory if you want more details about Primary Memory and Secondary Memory. Please visit the link.  

Static Memory

It is a type of semiconductor memory that uses bi-stable latching circuitry to store each bit. It retains stored information as long as the power supply is on.

Dynamic RAM

It loses its stored information in a very short time ( a few milliseconds ) even power supply is on. Therefore dynamic ram has to be refreshed periodically, generally every 2 milliseconds.

Difference between SRAM and DRAM

SRAM	DRAM
1) It need not be refreshed	1) Need to be refreshed periodically
2) These are not as dense as DRAM	2) They are dense
3) It is fast	3) a little slow
4) Low latency	4) Longer latency
5) Access time is 25  nanoseconds	5) Access time is 60 nanoseconds
6) Best for internal memory	6) Best for the system’s memory
7) Expensive, consumes more power	7) Inexpensive, consumes less power
8) Stores information as long as the power supply is on.	8) Dynamic RAM loses data in a very short time.

How you found this article, is this useful? I'm sure this will help you more. If you want more information please let me know through comments in the right below. Subscribe to the My Computer Tutors for updates. I will keep updating you with the latest tutorials.