8.Two program A and B are running in a multiprogramming environment. Program A outputs much data to printer. Program B produces very little output. Describe a suitable scheduling policy in this case, explaining your reasons.
9.An airline booking system makes use of a real-time OS. Define real-time and explain why it is necessary in the airline booking system.
This is a mechanism that interrupts at fixed intervals of real time, and is needed for accounting and scheduling purposes. In some systems multiprogramming makes use of a real-time clock which initiates interrupts to the operating system allowing it to allocate timeslices to programs. This technique can also be used to share CPU time among a number of a multi-access environment.
2006-11-08 16:10:48 · 2 answers · asked by yy 1 in Computers & Internet ➔ Programming & Design
i would suggest highest ratio next
2006-11-11 17:37:02 · answer #1 · answered by edmund y 1 · 0⤊ 0⤋
8. The best scheduling policy will be shortest job first. So that B can do its job before A.
9. I dont see why real time systems are needed for airline booking.
2006-11-09 00:41:56 · answer #2 · answered by manoj Ransing 3 · 0⤊ 0⤋