There are 18 addressable sectors (record locations) on a disk track and 200 tracks on a disk surface. The first sector on the outside track is sector 0000 and sector addresses are consecutively numbered sector by sector, track by track up to the last sector on the inside track with address 3599. A sector address is 1234. On what track is it located? What record location does it have on that track?
Answers
Given : There are 18 addressable sectors (record locations) on a disk track and 200 tracks on a disk surface.
To find : On what track is 1234 located? What record location does it have on that track?
Solution:
Track 1 0000 to 0199
Track 2 0200 to 0399
Track 3 0400 to 0599
Track 4 0600 to 0799
Track 5 0800 to 0999
Track 6 1000 to 1199
Track 7 1200 to 1399
Track 8 1400 to 1599
....
...
Track 18 3400 to 3599
1234 comes between 1200 to 1399
=> 1234 is at track 7
1200 is at 1st location on track 7
=> 1234 is at 35th Location on 7th Track
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