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Computer Memory And Its Types

Updated on September 17, 2014

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

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

  • DRDRAM

DRAM

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

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


DRDRAM

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

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

Types of ROM

  • PROM

  • EPROM

PROM

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

  • EPROM

  • EEPROM

EPROM(Erasable)

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: http://daobytes.com/qr-generator/

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      Harigovind 22 months ago

      This page really usefull .so my project is already complete

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      swati 22 months ago

      Very interested data

    • profile image

      muhammad ijram 22 months ago

      Thanks

    • profile image

      prashant kumar pandey 24 months ago

      very very usefull data

    • profile image

      anindita 2 years ago

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

    • profile image

      nasir akram 2 years ago

      nice data.very helpful for me.

    • profile image

      M Abbas 2 years ago

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

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

    • profile image

      rani 3 years ago

      thank you its a lot of info.

    • profile image

      shafiq 3 years ago

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

    • profile image

      your enemy 4 years ago

      Happy enemy day

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      45t5yh 4 years ago

      it is very boaring

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      haris ahmed 4 years ago

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

    • profile image

      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 good.so i want to read his or her good article which dn't need any improvemment.

    • profile image

      g tamayi 4 years ago

      not really good need for improvement honestly

    • 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.

    • profile image

      Gavas 5 years ago

      Nice Article