Computer Awareness MCQs and Notes

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📊 Computer Awareness
Q. A method of using a communication channel in which signals can be transmitted between a source and a destination in both directions simultaneously is called
  • (A) Full duplex
  • (B) Half duplex
  • (C) Quarter duplex
  • (D) None of these
💬 Discuss
✅ Correct Answer: (A) Full duplex
📊 Computer Awareness
Q. A data transmission medium made of tiny threads of glass or plastic that can transmit huge amount of information at the speed of light is
  • (A) Fiber optic cable
  • (B) Copper cable
  • (C) Twisted wire cable
  • (D) None of these
💬 Discuss
✅ Correct Answer: (A) Fiber optic cable
📊 Computer Awareness
Q. A device used for transmission of images scanned at a transmitting point and duplicated at a receiving point is
  • (A) Facsimile (FAX)
  • (B) Telephone
  • (C) Photocopier
  • (D) None of these
💬 Discuss
✅ Correct Answer: (A) Facsimile (FAX)
📊 Computer Awareness
Q. Extended ASCII uses
  • (A) 8 bits for coding
  • (B) 9 bits for coding
  • (C) 10 bits for coding
  • (D) 11 bits for coding
💬 Discuss
✅ Correct Answer: (A) 8 bits for coding
📊 Computer Awareness
Q. A semiconductor memory which allows the eraser of the information stared in it so that new information can be stared in it is referred as
  • (A) EPROM
  • (B) ROM
  • (C) RAM
  • (D) None of these
💬 Discuss
✅ Correct Answer: (A) EPROM
📊 Computer Awareness
Q. Elementary data item are
  • (A) data item which is not broken down into smaller units
  • (B) data item that can be broken down into smaller units
  • (C) data item which is not decomposed into smaller units
  • (D) none of these
💬 Discuss
✅ Correct Answer: (A) data item which is not broken down into smaller units
📊 Computer Awareness
Q. The advantages of COM are its and .
  • (A) compact size; readability
  • (B) compact size; speed
  • (C) readability; speed
  • (D) compact size; low cost
💬 Discuss
✅ Correct Answer: (B) compact size; speed
📊 Computer Awareness
Q. Magnetic tape can serve as
  • (A) input media
  • (B) output media
  • (C) secondary-storage media
  • (D) all the above
💬 Discuss
✅ Correct Answer: (D) all the above
📊 Computer Awareness
Q. Data entry can be performed with all of the following except
  • (A) OCR / OMR
  • (B) COM
  • (C) Voice-recognition systems
  • (D) MICR
💬 Discuss
✅ Correct Answer: (B) COM
📊 Computer Awareness
Q. An advantage of the laser printer respect to impact printer is
  • (A) it is quieter/ faster
  • (B) output is of a high quality
  • (C) support wide range of type fonts
  • (D) all the above
💬 Discuss
✅ Correct Answer: (D) all the above

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