Computer Awareness MCQs and Quiz for Banking, IBPS, RRB, RBI, SBI Exams
Computer Awareness Questions and Quiz for Banking, IBPS, RRB, RBI, SBI, NABARD examinations of 2020-2021. Computer Awareness MCQs for Competitive Exams. GKToday Computer Awareness for IBPS PO, IBPS Clerk, Bank PO, Bank Clerk and other entrance / competitive examinations.
21. Which of the following was the first commercial transistor computer?
[A] EDSAC
[B] Metrovick 950
[C] SIRAC
[D] Zuse Z4
Show Answer
Correct Answer: B [Metrovick 950]
Notes:
Metrovick 950 was the first commercial transistor computer.
22. In which of the following applications are analog computers used?
[A] Measurement of Electric Current
[B] Measurement of Frequency
[C] Measurement of Resistance of a Capacitor
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
An Analog computer is used in a variety of industrial and scientific applications like measurement of electric current, measurement of frequency and also resistance of a capacitor.
23. Which of the following are examples of an analog signal?
[A] Sound via an electrified copper wire
[B] Human Speech via an electrified copper wire
[C] Light
[D] Both 1 and 2
Show Answer
Correct Answer: D [Both 1 and 2]
Notes:
Examples of analog signal include sound or human speech over an electrified copper wire.
24. Which is the primary technical problem associated with hybrid computers?
[A] Reduction of Digital-computer noise
[B] Reduction of Analog-computer noise
[C] Increase of Digital-computer noise
[D] Increase of Analog-computer noise
Show Answer
Correct Answer: A [Reduction of Digital-computer noise]
Notes:
The main technical problem associated with hybrid computers is the reduction of digital computer noise.
25. What controlled the data-processing operations in the Harvard Mark I?
[A] Electric relays
[B] Memory
[C] Switching Devices
[D] Both 1 and 3
Show Answer
Correct Answer: D [Both 1 and 3]
Notes:
In Harvard Mark I the data-processing operations are primarily controlled by electric relays or switching devices.
26. Which was the earliest commercial, non-kit microcomputer based on a microprocessor?
[A] MIR Series
[B] Micral N
[C] Datapoint 2200
[D] HP 9800
Show Answer
Correct Answer: B [Micral N]
Notes:
Micral N was the earliest commercial, non-kit microcomputer based on a microprocessor. It was built in 1972 and only a few hundred units were sold. Micral is a series of microcomputers produced by a French company R2E.
27. Which of the following devices usually come with touchscreens?
[A] Nintendo Game Consoles
[B] Electronic Voting Machines
[C] Point of Sale Systems
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A touchscreen is basically an input device which is present on top of an electronic visual display. It is found in devices like Nintendo Game Consoles, EVMs, Personal computers, POS systems.
28. Monitors, printers, disk drives, keyboard, mouse are included in which of the following categories?
[A] Storage Device
[B] Hardware
[C] Software
[D] All of the Above
Show Answer
Correct Answer: B [Hardware]
Notes:
Monitors, printers, disk drives, keyboard, mouse are Hardware devices. Hardware devices refer to the physical components .Computer hardware is any physical device used in or with your machine, whereas software is a collection of code installed onto your computer’s hard drive.
29. Which of the following is a pointing device that uses light to determine mouse motion?
[A] Trackball
[B] Touch screen
[C] Optical Mouse
[D] None of the Above
Show Answer
Correct Answer: C [Optical Mouse]
Notes:
An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode (LED), and a light detector, such as an array of photodiodes, to detect movement relative to a surface.
30. Which one is the common device used for drawing, painting, or interactively selecting coordinate positions on an object ?
[A] Image scanner
[B] Digitizers
[C] Data glove
[D] Touch panels
Show Answer
Correct Answer: B [Digitizers]
Notes:
Digitizers can be used for drawing, painting and selecting positions. It is any device which receives analog information and creates a digital representation of it.
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