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. The performance of a hard drive or other storage device, meaning how long it takes to locate a file is called ?
[A] Response Time
[B] Access Time
[C] Quick Time
[D] None of the above
Show Answer
Correct Answer: B [Access Time ]
Notes:
Access time (or Hard Disk Access Time) is the total elapsed time between the initiation of a particular request for data and receipt of the first bit of that data.
2. What is the name of the digital circuit that performs arithmetic and logical operations in computers?
[A] Arithmetic Logic Unit
[B] Digital comparator
[C] Multiplexer
[D] None of these
Show Answer
Correct Answer: A [Arithmetic Logic Unit ]
Notes:
An arithmetic-logic unit (ALU) is the part of the circuit that performs Arithmetic nad logical operations. It is the part of a computer processor (CPU). In some processors, the ALU is divided into two units, an arithmetic unit (AU) and a logic unit (LU).
3. Microsoft first introduced an operating environment named Windows in which year?
[A] 1977
[B] 1980
[C] 1985
[D] 1990
Show Answer
Correct Answer: C [1985]
Notes:
Microsoft introduced an operating system named Windows on November 20, 1985. It is a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs).
4. What was UNIVAC?
[A] A computer
[B] A Super computer
[C] A software Programme
[D] A Computer Manufacturer
Show Answer
Correct Answer: A [A computer]
Notes:
Universal Automatic Computer (UNIVAC) was innovated in 1940s that led to the first commercially successful computer.
5. What kind of operations can a computer carry out?
[A] Arithmetic and Logical
[B] Verbal and Logical
[C] Logical and Cognitive
[D] Verbal and Arithmetic
Show Answer
Correct Answer: A [Arithmetic and Logical]
Notes:
A computer is a device which can carry out sequences of arithmetic and logical operations automatically with the help of computer programming.
6. Which of the following comprise the hardware components of the computer?
[A] Printer
[B] Keyboard
[C] Mouse
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The components of the computer which we can see and touch are called the hardware components of the computer. They include devices like keyboard, mouse, printer etc.
7. Which of the following can change the sequence of instructions to be fetched by the processor?
[A] Jumps
[B] Subroutine Calls
[C] Returns
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Processors usually get instructions from memory but the sequence is usually changed by placing of a new value in the PC like branches also called jumps, subroutine calls and returns.
8. Which of the following is a Text-based user interface?
[A] GNOME
[B] KDE
[C] Aqua
[D] Command-line interface
Show Answer
Correct Answer: D [Command-line interface]
Notes:
A text-based user interface is Command-line Interface. It is a text-based application is one whose primary input and output are based on the text.
9. What are four basic functional elements of a digital computer?
[A] Input-Output Equipment
[B] Main Memory
[C] Control Unit and ALU
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A digital computer system has four basic functional elements like the input-output equipment, main memory, control unit and the arithmetic logic unit.
10. Which of the following is generally marketed as a companion device?
[A] Laptop
[B] Desktop
[C] Netbook
[D] UMPC
Show Answer
Correct Answer: C [Netbook]
Notes:
A netbook is also called a mini notebook as it is a small, lightweight and inexpensive laptop often marketed as a companion device. It is suited for general computing tasks and other web-based applications.
