Computer Memory And Its Types

Computer Memory

Memory is the internal storage area of the computer. Memory identifies the data storage.The physical memory usually referred to us main memory or RAM.

Types of Memory

  • RAM

  • ROM


RAM stands for Random Access Memory.It write data into RAM and aslo read data from RAM. RAM is a volatile memory.It holds data as long as the computer is switched on.There are two types of RAM

  • DRAM

  • SRAM



DRAM stands for Dynamic Random Access Memory. Mostly used in Personal Computers.DRAM must have electric current to maintain electrical state(refresh).Its access time is 60 - 70 nan0sec0nds.


SRAM stands for Static Random Access Memory.Its access time less than 60 nan0seconds.


DRDRAM stands for Direct Rambus Dynamic Random Access Memory.It is the new type of RAM. It access time 20 times faster than DRAM.


ROM stands for Read Only Memory.It is a non-volatile memory.It read data from memory.

Types of ROM

  • PROM



PROM stands for Programmable Read Only Memory. It acts like a ROM. There are two types of PROMs.




EPROM Stands for Erasable Programmable Read Only Memory. It can be erased and reprogrammed by the user.

EEPROM(Non Erasable):

EEPROM stands for Electrically Erasable Programmable Read Only Memory.Nonerasable PROMs cannot be changed once they are programmed.

See also:

Comments 17 comments

Gavas 5 years ago

Nice Article

OutsideTheLines profile image

OutsideTheLines 5 years ago from Tulsa, OK

Very good hub. Hopefully a lot of people will read and learn from this. I can't tell you how many people have replied with 500GB when I asked them how many gigs of RAM they're running on their tablet or computer. Voted up.

g tamayi 4 years ago

not really good need for improvement honestly

emaan najwa 4 years ago

It is really a good article ,I personaly think that every thing needs improvement but i dn't agree with g tamayi who said that it's not really i want to read his or her good article which dn't need any improvemment.

haris ahmed 3 years ago

this page is very interesting and we learn many things from it.

45t5yh 3 years ago

it is very boaring

your enemy 3 years ago

Happy enemy day

shafiq 3 years ago

i got it ,really an easy approach to learn..intersting article

rani 3 years ago

thank you its a lot of info.

M Abbas 2 years ago

Its a very difficult explanation.............................

Boring article.....................

nasir akram 24 months ago

nice data.very helpful for me.

anindita 22 months ago

its really useful....i've learnt a lot from this article

prashant kumar pandey 18 months ago

very very usefull data

muhammad ijram 17 months ago


swati 17 months ago

Very interested data

Harigovind 17 months ago

This page really usefull .so my project is already complete

13 months ago


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