What is the typical speed of a hard disk's interface SATA III in Gbps? MCQ with Answer and Explanation

Explanation:
Hard disks use platters made of aluminum or glass, coated with a thin magnetic layer that stores data in the form of magnetized regions.

Explanation:
The memory hierarchy from fastest to slowest is typically: Registers (fastest), then Cache, then RAM (main memory), then secondary storage like Hard disk (slowest).

Explanation:
Cache memory is built with SRAM (Static RAM) due to its speed, though it is more expensive and less dense than DRAM.