Selected MCQ

Current Question
An electronic logic gate whose output is logic 1 only when all inputs are logic 1 is ____.
  • A. NOR
  • B. NAND
  • C. OR
  • D. NOT
Correct Answer: B
Explanation:
NAND gate outputs 0 only when all inputs are 1 (otherwise 1).
Related Question 1
In the given logical expression, if two conditions are true, which gate will output True?
  • A. Not Gate
  • B. OR Gate
  • C. NAND Gate
  • D. XOR Gate
Correct Answer: B
Explanation:
OR gate outputs true if at least one (or both) inputs are true.
Related Question 2
All the output which is Printed on a paper is called ____.
  • A. Soft Copy
  • B. Hard Copy
  • C. Both A & B
  • D. None of these
Correct Answer: B
Explanation:
Printed output is called hard copy.
Related Question 3
After 'PROM' is programmed, we can only ____ the information.
  • A. Read
  • B. Write
  • C. Read and Write
  • D. Remove
Correct Answer: A
Explanation:
PROM (Programmable ROM) can only be read after programming.
Related Question 4
A(n) ____ is a set of programs designed to manage the resources of a computer, including starting the computer, managing programs, managing memory and coordinating tasks between input and output devices.
  • A. Application suite
  • B. Compiler
  • C. Input/output system
  • D. Operating system
Correct Answer: D
Explanation:
The operating system manages all computer resources.
Related Question 5
A wireless technology built into electronic gadgets used for exchanging data over short distances is ____.
  • A. Bluetooth
  • B. Wi-Fi
  • C. Modem
  • D. USB
Correct Answer: A
Explanation:
Bluetooth is designed for short-range wireless communication.