What is the typical capacity of a DVD-ROM in bytes? MCQ with Answer and Explanation

Explanation:
CMOS RAM (often powered by a battery) stores BIOS settings such as date, time, and hardware configuration. It is non-volatile but small.

Explanation:
CPU registers are located inside the processor itself and have the fastest access time, followed by cache memory, main memory, and secondary storage.

Explanation:
Cache memory holds frequently accessed data and instructions to reduce the average time to access data from main memory, thus improving system performance.