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. A network that is connected to the Internet, but uses encryption to scramble all the data sent through the Internet is called ?
[A] My network
[B] Virtual Private Network
[C] Social Network
[D] None of the above
Show Answer
Correct Answer: B [Virtual Private Network ]
Notes:
A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network. Applications running on a computing device, e.g., a laptop, desktop, smartphone, across a VPN may therefore benefit from the functionality, security, and management of the private network. Encryption is a common, though not an inherent, part of a VPN connection.
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. Which among the following is NOT a search engine?
[A] Google
[B] Baidu
[C] Wolfram Alfa
[D] Yahoo
Show Answer
Correct Answer: C [Wolfram Alfa ]
Notes:
Wolfram Alfa is a computational knowledge engine or answer engine and not a search engine. Goodle, Baidu and yahoo are the search engines as a person can search anything on web using these.
4. 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.
5. 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.
6. Which of the following is not a characteristic of a desktop replacement computer?
[A] Full capabilities of a desktop
[B] Remains fixed and is not mobile
[C] Large display than most portable systems
[D] Powerful components
Show Answer
Correct Answer: B [Remains fixed and is not mobile]
Notes:
Unlike desktops, the desktop replacement computer has full capabilities of the desktop computer but is not mobile. They are in the category of a bulkier laptop.
7. Which of the following clearly define the Trackball ?
[A] It is a two-dimensional positioning device.
[B] It is a three- dimensional positioning device.
[C] It is a pointing device.
[D] None of the Above
Show Answer
Correct Answer: A [It is a two-dimensional positioning device.]
Notes:
Trackball is two-dimensional positioning device. the trackball is an upside-down mouse that rotates in place within a socket. The trackball is usually located in front of the keyboard toward the user.
8. Which of the following is the device that is constructed with the series of sensors that detects hand and finger motion?
[A] Digitizers
[B] Data glove
[C] Joystick
[D] Track ball
Show Answer
Correct Answer: B [Data glove]
Notes:
Data glove senses, detects hand and finger motion. It is an interactive device, resembling a glove worn on the hand. It also often contains a motion tracker.
9. Which of the following clearly defines the word Bus Width?
[A] It is the size of the vehicle used to ship the computer.
[B] It is the number of pins in a computer port.
[C] It is the number of bits that can be sent to a CPU simultaneously.
[D] None of the Above
Show Answer
Correct Answer: C [It is the number of bits that can be sent to a CPU simultaneously.]
Notes:
The speed of system random-access memory is determined by two factors: bus width and bus speed. Bus width refers to how many bits of information RAM can send to the CPU at the same time.
10. Which of the following is the use of nano control memory ?
[A] Improve the speed of execution
[B] Reduce the overall control memory size
[C] Reduce the complexity of hardware
[D] None of the Above
Show Answer
Correct Answer: B [Reduce the overall control memory size]
Notes:
Nano-RAM is a computer memory technology . It is developed by Nantero. It is a type of nonvolatile random access memory. Nantero was founded in 2001, and headquartered in Woburn, Massachusetts.
