Computer Organization
Q272.
An application loads 100 libraries at startup. Loading each library requires exactly one disk access. The seek time of the disk to a random location is given as 10ms. Rotational speed of disk is 6000rpm. If all 100 libraries are loaded from random locations on the disk, how long does it take to load all libraries? (The time to transfer data from the disk block once the head has been positioned at the start of the block may be neglected)Q273.
A hard disk has 63 sectors per track, 10 platters each with 2 recording surfaces and 1000 cylinders. The address of a sector is given as a triple (c,h,s), where c is the cylinder number, h is the surface number and s is the sector number. Thus, the 0^{th} sector is addressed as (0,0,0), the 1^{st} sector as (0,0,1), and so on The address (400, 16, 29) corresponds to sector number:Q276.
A hard disk has 63 sectors per track, 10 platters each with 2 recording surfaces and 1000 cylinders. The address of a sector is given as a triple (c,h,s), where c is the cylinder number, h is the surface number and s is the sector number. Thus, the 0^{th} sector is addressed as (0,0,0), the 1^{st} sector as (0,0,1), and so on The address of the 1039^{th} sector is