Why is primary memory termed as destructive write memory?
Answers
Answer:
Primary memory is termed as destructive write memory because the memory stored in it is not permanent. Memory is only saved only during the working of the computer and after the work is completed, it gets erased with out the users command. Each time at the time if re-start it get cleared and refreshed
Explanation:
Answer:
Explanation:
First of all, Primary Memory consists of 2 types (RAM and ROM). RAM is a volatile memory which can provide random access and faster execution. To know more about RAM see any Operating System (OS) or Computer Architecture book of Computer Science.
Now comes to question part, ROM is a read-only memory(A non-volatile memory). What it means that ROM provides such operations which need to perform at utmost priority and compulsory at the beginning (booting) of the Operating System (technically speaking- Firmware: A piece of software closely tied to hardware. We know it as BIOS ).That’s why this firmware resides in ROM so that any program can not modify its behavior.
One more thing, Nowadays these ROM’s can be reconfigured means it can be reprogrammable, but it's uses are the same.
The term primary is used for both because of any process (part of a program) needs a faster memory execution which can work equivalently to the CPU execution speed (Processes are the part of a program created by CPU). Thus processes reside in main or primary memory such that it executes by CPU at the same speed.
In the hierarchy of the memory Registers(CPU execution) at the top then comes cache and main and at last secondary memory (Which is far slower than the execution speed of CPU).
Hope this answer justified question.
:)