Which one of the following acronyms is matched incorrectly with its full form?

ABIOS - Basic Input/Output System

BPDA - Personal Digital Authentication ✓ Correct

CGUI - Graphical User Interface

DWWW - World Wide Web

Correct answer: (B) PDA - Personal Digital Authentication

Explanation

PDA stands for Personal Digital Assistant, not Personal Digital Authentication.

A PDA is a handheld device for notes, contacts and scheduling.

BIOS correctly expands to Basic Input/Output System that boots the machine.

GUI correctly expands to Graphical User Interface with icons and windows.

WWW correctly expands to World Wide Web of linked hypertext pages.

Early PDAs like the Palm Pilot were forerunners of the smartphone.

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