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GK One-Line Question & Answer

15541+ short questions with short answers, covering every category and sub-category on the site — no long articles to scroll through. Good for a fast recap before an exam, or a few minutes of daily practice.

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Computer Fundamentals → Introduction to Computer 33

What does the beep code pattern '3 beeps' typically indicate in BIOS?
RAM memory error (varies by BIOS manufacturer)
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Blue screen with 'MEMORY_MANAGEMENT' error indicates?
RAM or memory-related problem
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CPU temperature throttling occurs when?
CPU reduces clock speed to prevent damage when threshold is exceeded
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Which command in Windows shows hardware information?
msinfo32
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The binary code for ASCII 'A' is?
01000001
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How many bits in an IPv4 address?
32
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What is the decimal value of binary 11110000?
240
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The subnet mask /24 in CIDR notation corresponds to?
255.255.255.0
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How many host addresses does a /26 subnet provide?
62
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Octal representation uses which digits?
0-7
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Boolean algebra AND gate truth table: 1 AND 0 =?
0
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NOR gate is equivalent to?
OR then NOT
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XNOR gate output is 1 when?
Inputs are the same (both 0 or both 1)
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Google was founded in?
1998
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Facebook (now Meta) was founded by?
Mark Zuckerberg
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Microsoft was founded by?
Bill Gates and Paul Allen
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Apple Inc. was co-founded by?
Steve Jobs, Steve Wozniak, and Ronald Wayne
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The term 'WWW' was invented by?
Tim Berners-Lee in 1989
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Amazon was founded by?
Jeff Bezos
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Twitter (now X) was founded by?
Jack Dorsey, Noah Glass, Biz Stone, Evan Williams
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Python is named after?
Monty Python's Flying Circus (British comedy)
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Which was the first virus affecting personal computers?
Brain (1986) — first PC virus on floppy disks
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ILOVEYOU virus (2000) spread via?
Email attachments — affected millions of computers worldwide
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The first computer game is considered to be?
Spacewar! (1962) or OXO (1952)
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Moore's Law was proposed in?
1965
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First commercially available microprocessor was?
Intel 4004 (1971)
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C programming language was developed in?
1972
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Java was officially released in?
1995
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Python was first released in?
1991
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ARPANET, precursor to internet, was created by?
DARPA (Defense Advanced Research Projects Agency)
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The first website ever created was?
info.cern.ch (1991) by Tim Berners-Lee
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Deep Blue chess computer defeated Garry Kasparov in?
1997
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AlphaGo (DeepMind) defeated world Go champion Lee Sedol in?
2016
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Computer Fundamentals → Number System 1

Hexadecimal F0 in decimal is?
240
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Computer Fundamentals → Internet Basics 3

Which computer scientist invented the World Wide Web?
Tim Berners-Lee
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The @ symbol in email addresses was chosen by?
Ray Tomlinson in 1971 for separating user from host
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The first email was sent in?
1971
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Computer Fundamentals → Operating System Basics 1

Linux kernel was written in?
C language
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Computer Fundamentals → Computer Security 1

Morris Worm (1988) was notable for?
First worm to spread over internet, causing widespread damage
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Computer Fundamentals → Memory Units 1

The first hard disk drive was introduced by IBM in?
1956
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