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Question

Memory of 64×8 bits means ________________.

A
It memory space is 64K byte
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B
It memory space is 64 byte
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C
It memory space is 64 bit
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D
None of the above
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Solution

The correct option is B It memory space is 64 byte

Memory of 64×8 bits means It memory space is 64 byte.

A 32bit machine the maximum amount of memory usable is around 4GB. Actually, depending on the OS it might be less due to parts of the address space being reserved: On Windows you can only use 3.5GB.

Example. On 64 bit you can indeed address 2^64 bytes of memory.

64-bit computing is the use of processors that have data path widths, integer size, and memory address widths of 64 bits.



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