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a)mask read only memory.
Once the content is written on it cannot be changed.
b)programmed read only memory.
Allows the user to alter it only once after the content is written on it .
c)erasable programmamble read only memory.
Has a transparent quartz window through which its contents can be erased by exposing it to ultra violent light and then reprogrammed for another use .
d)Electrically erasable programmed read only memory.
This types can be erased and reprogrammed using electricity.example of this type of memory is the basic input /output system.
Characteristics of read only memory.
One can only read its content but can not write on it unless it’s a special
Types of Rom
It’s non –volatile i.e its content is not lost when the computer is switched off.
Stores permanent or semipermanent instructions from manufacture
Called firmware.
Can store semipermanent instructions because some variations of Rom chips can be programmed according to the user specifications.
Softwaretech answered the question on April 22, 2019 at 12:51
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