Multiple choice

What is a block?

  1. A tool to stop an input device from interacting with an output device.

  2. A tool which stops the functioning of RAM.

  3. A set of items handed as one unit in storage and retrieval.

  4. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A block is a fixed-size unit of data storage and retrieval, typically consisting of multiple bytes or items handled as a single entity. Files are stored as sequences of blocks on disk, and read/write operations often transfer entire blocks for efficiency rather than individual items. Block sizes vary by system but are commonly 512 bytes, 1KB, or 4KB.