Operating System

1. Whenever a process needs I/O to or from a disk it issues a ______________

2. The data structue for a sector typically contains

4. A single swap space ______ reside in two places.

5. The _______ program initializes all aspects of the system, from CPU registers to device controllers and the contents of main memory, and then starts the operating system.

6. For swap space created in a seperate disk partition where no file system or directory structure is placed, _____________ used to allocate and deallocate the blocks.

7. On media that use constant linear velocity (CLV), the _____________ is uniform.

8. Defective sectors on disks are often known as __________

9. In SCSI disks used in high end PCs, the controller maintains a list of _________ on the disk. The disk is initialized during ________ formatting which sets aside spare sectors not visible to the operating system.

10. 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.