Computers and IT MCQs
Computer Awareness Questions and Quiz for Banking, IBPS, RRB, RBI, SBI, NABARD examinations of 2024-2025. Computer Awareness MCQs for Competitive Exams. GKToday Computer Awareness for IBPS PO, IBPS Clerk, Bank PO, Bank Clerk and other entrance / competitive examinations.
1. What is the use of Digitizer as an input device?
[A] To Convert graphic and pictorial data into binary inputs
[B] To convert graphic and pictorial data into analog inputs
[C] Debuging
[D] None of the above
Show Answer
Correct Answer: A [To Convert graphic and pictorial data into binary inputs ]
Notes:
A digitizer is the device which improves touch accuracy is embedded in the screens of tablets and smart phones. Other devices use a digitizer device such as a stylus to allow users to specify locations on the display more precisely. There are three types of touch-screen digitizers: passive, active and dual.
2. One nibble is equal to_?
[A] 4 Bits
[B] 4 Bytes
[C] 8 Bytes
[D] 8 Kilo Bytes
Show Answer
Correct Answer: A [4 Bits]
Notes:
In computing, a nibble (often nybble or even nyble to simulate the spelling of byte) is a four-bit aggregation, or half an octet. As a nibble contains 4 bits, there are sixteen possible values, so a nibble corresponds to a single hexadecimal digit (thus, it is often referred to as a “hex digit” or “hexit”).
3. What are the components of the Central Processing Unit?
[A] Control Unit
[B] Arithmetic Logic Unit
[C] Memory
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Control Unit, Arithmetic Logic Unit and Memory together are called the Central Processing Unit or the CPU.
4. Which of the following comprise the software components of a computer?
[A] Programs
[B] Keyboard
[C] BIOS
[D] Memory
Show Answer
Correct Answer: A [Programs]
Notes:
The set of instructions or programs that make the computer function using the hardware parts are called the software. We cannot see or touch software.
5. Which was the world’s first electronic digital programmable computer?
[A] Z3
[B] Colossus
[C] Enigma
[D] Z2
Show Answer
Correct Answer: B [Colossus]
Notes:
Colossus was the world’s first electronic digital programmable computer which used a large number of valves.
6. In each of the computer parts, there are many trillions of electrical circuits which can be turned on or off with the help of an electronic switch. How are these arranged?
[A] Circuit Gates
[B] Circuit Bypass
[C] Logic Gates
[D] Data Knots
Show Answer
Correct Answer: C [Logic Gates]
Notes:
Each of the electrical circuits is arranged in logic gates so that one of the circuits may control the other circuits.
7. Which of the following indicates where is the computer is in terms of the program sequence?
[A] Logic Gate
[B] Knot Circuit
[C] Program Manager
[D] Program Counter
Show Answer
Correct Answer: D [Program Counter]
Notes:
The program counter which is commonly known as the instruction pointer is actually a processor register that points where a computer is in its program sequence.
8. In which computer was magnetic core memory first demonstrated?
[A] Manchester baby
[B] Ferranti I
[C] IBM 650
[D] Whirlwind Computer
Show Answer
Correct Answer: D [Whirlwind Computer]
Notes:
The first use of magnetic core was demonstrated in the Whirlwind Computer in 1953. Soon after that commercial production of the same began and it was seen in IBM 704 and Ferranti Mercury.
9. 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.
10. Which of the following are features of a subnotebook?
[A] Small physical dimensions
[B] Larger than hand-held computers
[C] Run complete versions of desktop/laptop OS
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A subnotebook has all the features of a standard laptop computer but it has smaller physical dimensions. They are larger than hand-held computers and usually play on full-versions of the desktop/laptop OS.
