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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 35

Which generation first used semiconductor memory?
Third
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The von Neumann bottleneck refers to?
Limited bandwidth between CPU and memory
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Superscalar CPU executes?
Multiple instructions simultaneously
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Pipeline in CPU allows?
Overlapping stages of multiple instructions
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Which cache miss type occurs when cache is empty?
Cold miss (compulsory)
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CISC vs RISC: RISC has?
Few simple instructions
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Branch prediction in CPU is used to?
Prefetch instructions based on likely branch outcome
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Out-of-order execution allows CPU to?
Execute instructions in a different order than programmed for efficiency
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Endianness refers to?
Byte order in multi-byte data storage
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x86 processors use which endianness?
Little-endian
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Which generation introduced microprocessors?
Fourth
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Which company made the first PC?
IBM
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Apple Macintosh was introduced in?
1984
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Android OS is based on?
Linux kernel
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iOS is developed by?
Apple
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HTML stands for?
HyperText Markup Language
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CSS stands for?
Cascading Style Sheets
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Which programming language is used for web scripting?
JavaScript
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Python was created by?
Guido van Rossum
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Java was developed by?
Sun Microsystems (James Gosling)
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C language was developed by?
Dennis Ritchie
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Which language has the principle 'write once, run anywhere'?
Java
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SQL stands for?
Structured Query Language
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Which of the following is a DBMS?
MySQL
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DDR stands for in DDR RAM?
Double Data Rate
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Which of the following is a high-level programming language?
Python
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An algorithm must be?
Finite, definite, and effective
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What is the time complexity of binary search?
O(log n)
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Which sorting algorithm has worst-case O(n log n)?
Merge sort
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Stack data structure follows?
LIFO
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Queue data structure follows?
FIFO
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A linked list node contains?
Data and pointer to next node
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Binary tree node has maximum?
2 children
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In a full binary tree, every node has?
0 or 2 children
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Recursion is?
Function calling itself
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Computer Fundamentals → Operating System Basics 2

MS-DOS stands for?
Microsoft Disk Operating System
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Which company created Windows OS?
Microsoft
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Computer Fundamentals → Internet Basics 2

The first commercially successful web browser was?
Mosaic/Netscape Navigator
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WWW was invented by?
Tim Berners-Lee
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Computer Fundamentals → Memory Units 1

RAM speed is measured in?
MHz
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