Answer the following statements true (T) or false (F)

1. Once a program is in memory, the dispatcher uses its external priority to determine its
right to access the processor.
2. Until the program is in memory, it has no internal priority. Once in memory, its external
priority is no longer relevant.
3. The most important measure of effectiveness of a time-sharing system is response time
4. During idle periods, the operating system’s spooling module reads data from such slow
devices as terminal keyboards and stores them on a highspeed medium such as disk.
Later, when the program is loaded, its input data can be read from high-speed disk.
5. Fragmentation occurs when two (or more) programs each control a resource needed by
the other.

1. False
2. True
3. True
4. true
5. False