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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

How many gates are needed to implement half adder using NAND?
5
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Multiplexer (MUX) selects?
Output line based on control signal
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Demultiplexer (DEMUX) routes?
Single input to one of many outputs
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Encoder converts?
One-of-N input to binary code
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Decoder converts?
Binary to one-of-N output
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SR flip-flop forbidden state occurs when?
S=1, R=1
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D flip-flop output at clock edge is?
Same as D input
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JK flip-flop with J=K=1 at clock edge?
Toggles output
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Which flip-flop eliminates the forbidden state of SR flip-flop?
JK
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Counter in digital electronics?
Counts clock pulses and cycles through states
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Synchronous counter vs asynchronous: synchronous counter?
All flip-flops clocked simultaneously
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DAC (Digital to Analog Converter) converts?
Digital binary data to analog signal
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ADC (Analog to Digital Converter) converts?
Analog signal to digital binary data
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Nyquist theorem states sampling rate must be?
At least twice the highest signal frequency
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Which of these is a complete computer fundamentals topic covered in RMSSSB exams?
Computer Generations, I/O, Memory, H/W, S/W, Data Representation, Number Systems
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Which scientist is called the 'Father of Modern Computer'?
John von Neumann
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Babbage's Analytical Engine was designed to use which input method?
Punch cards
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The first programming language ever was written by?
Ada Lovelace
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Colossus computer was built during which era?
During WWII
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IBM System/360 was revolutionary because?
It was a family of compatible computers
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Moore's Law states that transistor count doubles approximately every?
18-24 months
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The Atanasoff-Berry Computer (ABC) was the first?
Electronic digital computer solving linear equations
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Which generation computers used magnetic bubble memory?
Fourth
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CRAY-1 supercomputer belongs to which generation?
Fourth
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Which generation introduced Client-Server computing?
Fourth
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The term 'Computer Bug' was popularized by?
Grace Hopper
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VLSI technology packs how many transistors on a chip?
Hundreds of thousands to millions
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ULSI in 5th generation stands for?
Ultra Large Scale Integration
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Charles Babbage's Difference Engine was designed to?
Compute polynomial functions by finite differences
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Which generation introduced object-oriented programming languages?
Fourth
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The von Neumann architecture uses how many memory buses?
One shared memory bus
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Which early computer used mercury delay lines for memory?
EDSAC
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The Harvard Mark I was electromechanical — it used?
Electromagnetic relays
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Which Indian scientist contributed to computer development in India?
All of these
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ENIAC could perform how many multiplications per second?
385
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Computer Fundamentals → Memory Units 4

Register in digital electronics stores?
n-bit data using n flip-flops
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Which is the world's first stored-program computer that ran a program?
Manchester Baby (SSEM)
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Which country developed the first stored-program computer?
UK
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PARAM Shaktiman is a supercomputer developed by which Indian institution?
C-DAC
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Computer Fundamentals → Generations of Computer 1

Which generation of computer used GaAs (Gallium Arsenide) chips?
Fifth
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