Which memory is closest to the CPU in the memory hierarchy? MCQ with Answer and Explanation

Explanation:
A memory rank is a group of DRAM chips on a DIMM that are accessed together to provide a data bus width (e.g., 64-bit).

Explanation:
Flash memory is non-volatile and has no moving parts (solid-state). It is used in SSDs, pen drives, and memory cards. It is slower than DRAM but faster than HDDs.

Explanation:
A standard CD-ROM holds about 650 to 700 MB of data (or 74-80 minutes of audio). DVD holds 4.7 GB, and Blu-ray 25 GB.