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. Alerts are mostly appear in ______?
[A] Check box
[B] Combo box
[C] Dialog box
[D] None of the above
Show Answer
Correct Answer: C [Dialog box]
Notes:
A dialog box is a small area on a screen through which the user interacts with the computer. User is either asked to provide information or commands using this. The alerts also appear in this.
2. Which among the following is correct about 4GL?
[A] A computer brand
[B] A software brand
[C] A software program
[D] A programming language
Show Answer
Correct Answer: D [A programming language ]
Notes:
4GL means fourth-generation programming language.
3. 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.
4. When were the first digital electronic calculating machines developed?
[A] During Industrial Revolution
[B] During World War I
[C] During World War II
[D] During Cold War
Show Answer
Correct Answer: C [During World War II]
Notes:
During the Industrial Revolution, some mechanical devices were built to automate long and difficult tasks. The first digital electronic calculating machines were developed during World War II.
5. Which of the following are part of the Logical Operations of the computer?
[A] Addition
[B] Greater Than
[C] Subtraction
[D] Differentials
Show Answer
Correct Answer: B [Greater Than]
Notes:
A computer performs both arithmetic and logical operations. Examples of logical operations are greater than, less than, equal to , opposite etc.
6. 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.
7. Which of the following is seen as the earliest mechanical analog computer?
[A] Tally Stick
[B] Antikythera mechanism
[C] Planisphere
[D] Astrolabe
Show Answer
Correct Answer: B [Antikythera mechanism]
Notes:
The Antikythera mechanism is believed to be the earliest mechanical analog computer. It was designed to calculate astronomical positions.
8. 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.
9. 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.
10. Where are the instructions which are used to run a digital computer stored?
[A] Motherboard
[B] Hard Disk
[C] Memory
[D] All of the above
Show Answer
Correct Answer: C [Memory]
Notes:
The digital computer works by counting, comparing and manipulating various digits and their combinations as per the instructions which are stored in the memory.
