Correct option is C
The correct answer is
(c) CD – Compact Disc
Explanation: • CD stands for
Compact Disc, an optical storage device. • Used for storing audio, video, software, and data files. • Introduced in 1980s by Philips & Sony. • Typical capacity ~700 MB. • Uses laser technology for reading/writing.
Information Booster: • Variants: CD-ROM, CD-RW.
Additional Knowledge: (a) ASCII → American Standard Code for Information Interchange. (b) LAN → Local Area Network. (d) LAN never means Local Area Node.