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. Which of the following statements about ‘Net Metering’ is / are correct?
- It is a billing mechanism for solar energy consumers.
- It allows consumers to receive credits for electricity they add to the grid.
- It is primarily used for monitoring water usage in urban households.
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2
[C] Only 1
[D] Only 3
Show Answer
Correct Answer: A [Only 1 & 2]
Notes:
Net metering is a billing mechanism that credits solar energy system owners for the electricity they add to the grid. It allows consumers to offset their energy costs by generating their own electricity from solar panels, and any surplus energy is fed back into the grid, for which they receive credits. This innovative system promotes the use of renewable energy sources. It is not related to monitoring water usage in households.
2. Which among the following is the most common source of Viruses to the hard disk of your computer?
[A] Incoming Email
[B] Outgoing Email
[C] CD ROMs
[D] Websites
Show Answer
Correct Answer: A [Incoming Email ]
Notes:
Incoming emails is the most common source of Viruses to the hard disk of a computer. Hackers are using e mail for attacking a computer. The incoming email is the most vulnerable way.
3. Dynamic Adhoc Wireless Networks (DAWN) usually come under ___?
[A] 2G
[B] 3G
[C] 4G
[D] 5G
Show Answer
Correct Answer: D [5G]
Notes:
The DAWN Dynamic Ad-hoc Wireless Networks project is developing a general theory of complex and dynamic wireless communication networks. It comes under 5G.
4. “Internet escrow ” is a term most commonly related to which of the following?
[A] E-commerce
[B] Software Development
[C] Privacy Security
[D] Database Management
Show Answer
Correct Answer: A [E-commerce]
Notes:
Escrow is a financial instrument whereby an asset is held by a third party on behalf of two other parties that are in the process of completing a transaction. E commerce hold the asset of a merchant before it is sold to a customer. So it is Internet escrow.
5. Which of the following is not the basic capability of a computer?
[A] Speed
[B] Accuracy
[C] Prediction
[D] Processing
Show Answer
Correct Answer: C [Prediction]
Notes:
The basic functions of a computer include speed, accuracy, reliability, adaptability and storage. A computer cannot make predictions by itself. It can only make assessments based on the data which is fed into it.
6. Who had conceived the idea of the first ever Graphical User Interface?
[A] Steve Jobs
[B] Douglas Engelbart
[C] Alan Kay
[D] Bill Gates
Show Answer
Correct Answer: C [Alan Kay]
Notes:
The idea of the very first Graphical User Interface was conceived by Alan Kay. It was then pronounced as gooey.
7. Which is the first programmable analog computer?
[A] South-Pointing Chariot
[B] Planisphere
[C] Castle Clock
[D] Astrolabe
Show Answer
Correct Answer: C [Castle Clock]
Notes:
The castle clock which was a hydro-powered mechanical astronomical clock which was invented by Al-Jazari was the first programmable analog clock
8. 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.
9. Which of the following system is also known as desknotes?
[A] Laptop
[B] Notebook
[C] DTR computer
[D] Nettops
Show Answer
Correct Answer: C [DTR computer]
Notes:
A Desktop Replacement computer is also known as desknotes i.e. a combination of desktop and notebook.
10. Which of the following devices produces a permanent human-readable text of graphic document?
[A] Headphone
[B] Speaker
[C] Printer
[D] None of the Above
Show Answer
Correct Answer: C [Printer]
Notes:
A printer is a device which makes a human-readable representation of graphics or text on paper. A printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper.
