If a process needs I/O to or from a disk, and if the drive or controller is busy then

Related MCQs

• The process of dividing a disk into sectors that the disk controller can read and write, before a disk can store data is known as
• In the              algorithm, the disk arm starts at one end of the disk and moves toward the other end, servicing requests till the other end of the disk. At the other end, the direction is reversed and servicing continues.
•              controller sends the command placed into it, via messages to the             controller.
• The header and trailer of a sector contain information used by the disk controller such as                    and                    
• A set of hard disk drives with a controller mounted in a single box, forming a single large storage unit is                          
• If the number of cycles spent busy – waiting is not excessive, then                          
• Whenever a process needs I/O to or from a disk it issues a                              
• The command used to create logical drive for specific location of disk
• In the                algorithm, the disk head moves from one end to the other, servicing requests along the way. When the head reaches the other end, it immediately returns to the beginning of the disk without servicing any requests on the return trip.
• There are 10 different processes running on a workstation. Idle processes are waiting for an input event in the input queue. Busy processes are scheduled with the Round- Robin time sharing method. Which out of the following quantum times is the best value for small response times, if the processes have a short runtime, e.g. less than 10ms?