Why ROM is a RAM ?

By | March 12, 2012


As a computer student , if we are asked about the opposite term for RAM , the obvious answer is ROM.

So here we are just sharing some thoughts on why your ROM is also a RAM !


RAM or random access memory refers to the method by which the data is accessed   from  your memory .  Random Access means data can be accessed from your memory in a random manner , ie in any order irrespective of the order in which you are storing the data .


The opposite  term for RAM is Sequential access memory or SAM . ie data can be accessed from that kind of media in a sequential l manner only . Tape drives are classic examples of SAM.





So back to our point , all the electronic memories you are using in computers can access data randomly so we can call them RAM.  primarily There are two types of  RAM available , the Read Write -RAM and Read Only -RAM , ie RW-RAM and RO-RAM. According to the normal usable of the term , we prefer to call the RW-RAM as just RAMs and RO-RAMs as ROMs.

So bear in mind the fact that  ROM is also a RAM , but for your examinations , do not  go for this story if you are expecting an A grade for your computer paper




2 thoughts on “Why ROM is a RAM ?

  1. Medha

    Nice explantion…
    Had this discussion in Computer Architecture class which led me here!!

  2. Medha

    Also I would like to ask a question …

    Is hard disk a randomly accessed memory ?

    Answer is no…

    I know But how because unlike olden magnetic tapes and cassette wherein data is sequentially accessed in Hard disk I can open any application ,movies ,game or song of my choice at any time from a list of many without going through the sequence in which they are stored .For example from a list of 100 songs to play the 100 th song I can directly play it without traversing the list from first,second,
    so on…
    Therefore here also I can access the data data randomly but still its not Random Access memory …Why ?


Leave a Reply

Your email address will not be published. Required fields are marked *