Q. The air pressure can be countered by putting ______ in the head-disc surface arrangement.
✅ Correct Answer: (B)
spring mechanism
Computer Architecture MCQs and Notes
Q. _________ pushes the heads away from the surface as they rotate at their standard rates.
✅ Correct Answer: (C)
air pressure
Explanation: due to the speed of rotation of the discs air pressure develops in the hard disk.
Q. The read/write heads must be near to disk surfaces for better storage.
✅ Correct Answer: (A)
true
Explanation: by maintaining the heads near to the surface greater bit densities can be achieved.
Q. The drawback of Manchester encoding is
✅ Correct Answer: (D)
the low bit storage density provided
Explanation: the space required to represent each bit must be large enough to accommodate two changes in magnetization.
Q. One of the most widely used schemes of encoding used is
✅ Correct Answer: (C)
manchester
Explanation: the manchester encoding used is also called as phase encoding and it is used to encode both clock and data.
Q. For the synchronization of the read head, we make use of a
✅ Correct Answer: (C)
clock
Explanation: the clock makes it easy to distinguish between different values red by a head.
Q. The digital information is stored on the hard disk by
✅ Correct Answer: (A)
applying a suitable electric pulse
Explanation: the digital data is sorted on the magnetized discs by magnetizing the areas.
Q. The main reason for the discontinuation of semi conductor based storage devices for providing large storage space is
✅ Correct Answer: (B)
high cost per bit value
Explanation: in the case of semi conductor based memory technology, we get speed but the increase in the integration of various devices the cost is high.
Q. The associatively mapped virtual memory makes use of
✅ Correct Answer: (A)
tlb (translation look-aside buffer).
Q. The virtual memory basically stores the next segment of data to be executed on the
✅ Correct Answer: (A)
secondary storage