Computer — All MCQs
4795 questions available
Q2781.In Microsoft Office, what does the prefix 'MS' represent?
Correct Answer: A
MS stands for Microsoft Corporation, the developer of the Windows operating system and Office suite.
Q2782.In computing network systems, what does NOS stand for?
Correct Answer: A
NOS stands for Network Operating System, which handles network resources and coordinates client-server activities.
Q2783.The ALU (Arithmetic Logic Unit) and CU (Control Unit) are core sub-components of the ______?
Correct Answer: B
The CPU (Central Processing Unit) houses the ALU (calculation processing) and the Control Unit (operation coordination).
Q2784.What is the function of the Ctrl + W shortcut key in Microsoft Word?
Correct Answer: D
Ctrl + W is the standard keyboard shortcut used to close the active document window without exiting the application entirely.
Q2785.In network telecommunication, what does VOIP stand for?
Correct Answer: B
VOIP stands for Voice Over Internet Protocol, enabling voice routing and telephony services over IP networks.
Q2786.Which company is historically the largest player in the PC microprocessor industry?
Correct Answer: C
Intel Corporation is the dominant developer and manufacturer of x86 microprocessors.
Q2787.In internet infrastructure, what does ISP stand for?
Correct Answer: C
ISP stands for Internet Service Provider, a commercial entity that grants users access to the global Internet.
Q2788.In MS Word, the 'Ctrl + Delete' shortcut key combination is used to _____?
Correct Answer: B
Ctrl + Delete deletes the entire word to the right (after) of the cursor. Ctrl + Backspace deletes the word to the left (before).
Q2789.Which action allows you to select text in MS Word?
Correct Answer: A
Holding the Shift key while clicking or dragging the mouse selects a block of text in Word.
Q2790.In data storage technologies, what does USB stand for?
Correct Answer: B
USB stands for Universal Serial Bus, an industry standard for cables, connectors, and protocols.
Q2791.Which flagship AI model was released by OpenAI in August 2025?
Correct Answer: C
OpenAI launched its flagship GPT-5 model in August 2025 as part of its generative artificial intelligence suite.
Q2792.What is historically recognized as the first calculating device made by man?
Correct Answer: A
The abacus was one of the earliest mathematical computing devices, used as early as 2,400 B.C. by Babylonians.
Q2793.The ancient Abacus is classified as the world's first _____?
Correct Answer: B
The abacus is defined as the first mechanical calculator, preceding programmable gears and electronic circuits.
Q2794.Which cryptographic security technique is used to protect sensitive data and passwords?
Correct Answer: A
Encryption secures passwords and data by translating plain text into encrypted ciphertext.
Q2795.In which year did Microsoft release the first commercial version of Windows?
Correct Answer: D
Microsoft released Windows 1.0, its first graphical user interface extension of MS-DOS, in November 1985.
Q2796.The electronic transfer of data from one system or location to another is called?
Correct Answer: C
Data communication refers to the transmission of digital data between nodes via telecommunication channels.
Q2797.In MS Word 2010, the ribbon interface organizes commands and options into _____?
Correct Answer: B
The Office Ribbon interface organizes commands logically under horizontal, clickable 'Tabs' (e.g., Home, Insert).
Q2798.In Microsoft Word 2003, what is the default font size in a new blank document based on Normal template?
Correct Answer: A
Word 2003 defaulted to 12 pt Times New Roman, whereas Word 2007 changed default to 11 pt Calibri.
Q2799.What is the function of the 'Ctrl + J' shortcut key in MS Word?
Correct Answer: B
Ctrl + J justifies the paragraph, spacing characters evenly to align along both left and right margins.
Q2800.In image file formats, what does PNG stand for?
Correct Answer: C
PNG stands for Portable Network Graphics, a raster image format that supports lossless data compression.