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# GATE CS 2021 : Computer organization 8 (App update required to attempt this test)

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Question 1

Consider a disk drive with the following specifications: 16 surfaces, 512 tracks/ Surfaces, 256 sectors/ track and 512 Bytes/ sector. If the format overhead is 64 Bytes/ sector, what is the effective track capacity (in KB)?

Question 2

A disk drive has innermost track diameter as 28 cm with maximum recording density as 1 KB/cm. Using a R/W head the disk is rotating at 3000 RPM. What is the data transfer rate (in KB/ms)?

Question 3

A magnetic tape is consisting of some 16 kb blocks. Inter block gap length is 0.2 inch. The recording density is 2 KB/ inch. If the tape length is 1530 feet then what is the tape capacity (in MB)?

Question 4

Consider a typical disk that rotates at 3600 rotations per minute (RPM) and has a transfer rate of 100 × 106 bytes/sec. If the average seek time of the disk is twice the average rotational delay, then which of the following represents the average time (approx.) to read or write a 1024 byte sector of the disk?

Question 5

Which of the following are the computer memory performance parameters?

1) Access time (Latency)

2) Memory cycle time

3) Transfer rate

Question 6

A magnetic tape is consisting of some 16kb blocks. Inner block gap length is 0.2 inch. The recording density is 2kb/inch. if the tape length is 1530 feet then what is th tape capacity?
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Oct 27GATE & PSU CS

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