Which of the following is a type of memory that is used for storing data in a digital audio player? MCQ with Answer and Explanation

Explanation:
A buffer (or disk cache) in a hard disk is a small amount of RAM used to temporarily hold data being read from or written to the disk, improving performance by reducing access time.

Explanation:
The '-R' designation in optical formats stands for 'Recordable'. These discs use organic dye that can be altered by a laser only once, preventing rewriting (WORM - Write Once, Read Many).

Explanation:
HDD access times are around 5-10 ms (milliseconds), while RAM access times are around 50-100 ns (nanoseconds), making RAM thousands of times faster.