What is the purpose of a memory bus width? MCQ with Answer and Explanation

Explanation:
A standard single-layer DVD holds about 4.7 GB (or 4.38 GiB) of data. A CD holds ~700 MB, Blu-ray single layer ~25 GB, and pen drives vary.

Explanation:
DDR4 is the fourth generation of Double Data Rate (DDR) SDRAM, offering higher speeds, lower voltage, and increased density compared to DDR3.

Explanation:
The average access time for a hard disk is the sum of seek time (head movement), rotational latency (waiting for sector), and transfer time (reading/writing data).