Which component of a hard disk contains the actual data? MCQ with Answer and Explanation

Explanation:
Hard disk drives use rotating platters to store data magnetically. SSDs and flash memory have no moving parts.

Explanation:
DVD-R is write-once (recordable), not rewritable. CD-RW, DVD-RW, and BD-R are rewritable (or recordable once in case of BD-R? Actually BD-R is write-once, BD-RE is rewritable. But among options, DVD-R is write-once. So D is correct.

Explanation:
In a GPU, the memory controller manages the interface with the video memory (VRAM), handling data transfers for textures, frame buffers, etc.