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 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).
2. A DSLAM is a device used by Internet Service Providers (ISPs) to route incoming DSL connections to the Internet. What is its correct full form?
[A] Digital Subscriber Line Access Multiplexer
[B] Digital Subscriber Line Access Multiplier
[C] Digital Service Line Access Multiplexer
[D] None of these
Show Answer
Correct Answer: A [Digital Subscriber Line Access Multiplexer ]
Notes:
A digital subscriber line access multiplexer is a network device which is located in telephone exchanges. It connects multiple customer digital subscriber line interfaces to a high-speed digital communications channel using multiplexing techniques.
3. Which of the following transforms input data into output data?
[A] Peripherals
[B] RAM
[C] ROM
[D] CPU
Show Answer
Correct Answer: D [CPU]
Notes:
Input data is transformed into output by central processing unit- CPU. It is the electronic circuit in a computer that executes the instructions that make up a program. It performs operations specified by the instructions.
4. Which among the following is an example of “Card not present transaction” in context with the Credit / Debit Cards?
[A] A person paying a restaurant bill by giving details of his credit card
[B] A person making an online purchase using his / her credit card
[C] A person making a purchase using mobile banking
[D] Both 2 & 3
Show Answer
Correct Answer: D [Both 2 & 3 ]
Notes:
A card not present transaction is a payment card transaction made where the cardholder is not physically present the card for a merchant’s visual examination at the time that an order is given and payment effected. A person using credit card online or using mobile banking can use this kind.
5. The terms Goodput, Throughput and Maximum throughput are most closely associated with which among the following in computers?
[A] Bit Rate
[B] Response Time
[C] Command Line Interface
[D] Random memory
Show Answer
Correct Answer: A [Bit Rate ]
Notes:
The bit rate is the number of bits that are conveyed or processed per unit of time in computing and telecommunication. For example 1 kbit/s refers to 1000 bits/s while 1MBPS means one million bits per second. One byte per second (1 B/s) corresponds to 8 bit/s.
6. Which among the following is the time period during which a computer is malfunctioning or not operating correctly due to machine failures?
[A] Down time
[B] Up time
[C] Response time
[D] Run time
Show Answer
Correct Answer: A [Down time]
Notes:
Downtime is the time period when a system is unavailable. Downtime or outage duration refers to a period of time that a system fails to perform its primary function.
7. In which year Microsoft was founded ?
[A] 1970
[B] 1974
[C] 1975
[D] 1976
Show Answer
Correct Answer: C [1975]
Notes:
Microsoft was founded by Bill Gates and Paul Allen on April 4, 1975, to develop and sell BASIC interpreters for the Altair 8800. It rose to dominate the personal computer operating system market with MS-DOS in the mid-1980s, followed by Microsoft Windows.
8. 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.
9. Which of the following are indisputable characteristics of a computer?
[A] Speed
[B] Accuracy
[C] Versatility
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Speed, accuracy and versatility comprise indisputable characteristics of a computer. In addition, it also has reliability and storage capacity. These are some of the factors which make it such an important parts of our lives.
10. 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.
