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The computer’s main memory is __________

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The computer’s main memory is __________

(a) Hard drive and RAM

(b) CD-ROM and hard drive

(c) RAM and ROM

(d) CMOS and hard drive

This question was addressed to me in final exam.

I would like to ask this question from Read Only Memory (ROM) topic in division Memory Devices of Digital Circuits

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Right choice is (c) RAM and ROM

The best I can explain: The computer’s main memory is RAM and ROM because all the storage related operation are performed by the data present in RAM/ROM. RAM stands for Random Access Memory where any address can accessed in any order. ROM stands for Read Only Memory wherefrom data can only be read.

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