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Question 1:
(a) Discuss about the evolution of operating systems from mainframe batch systems to mainframe time sharing systems.
(b) Explain your understanding of the "suspend" state of a process, supplying justifications for its existence.
(c) Discuss about 5 possible elements involved with "process control" information.
(d) Draw a 5 state queuing diagram which caters for multiple blocked queues.
Question 2:
(a) Explain the concept of mutual exclusion.
(b) Discuss requirements needed to provide support for mutual exclusion.
(c) Discuss, stating advantages and disadvantages, of User Level threads and Kernel level threads.
Question 3:
(a) Discuss about issues involved with dynamic partitioning of memory management.
(b) Discuss the implications involved with the readers/writers problem.
Can a direct access file be read sequentially? Explain. Yes. Keep a counter, cp, initially set to 0. After reading record cp, increment cp.
Explain the Thread Contextual Data Threads in Net Ware carry additional context as well. Per-thread, stacks, errno, Net Ware Errno, t_errno and others are available to the ap
What are attributes? Attributes are the one, which explains the properties of data object.
Suppose we want to program a Web server; we could easily do so without using concurrency, as follows: while(true) wait connection read from socket and parse url look up url cont
Some people write custom memory allocators to meet their speci?c needs. Although this is not needed for most of the applications, it is also not uncommon. The goal, of course, is t
with aid of diagram describe 2 types of fixed partition allocation used in operating system
A friend has promised to log in at a particular time. However, he needs to be contacted as soon as he logs in. The shell script checks after every minute whether he has logged in o
#include #include #include #include #include int main(void) { int pchan[2], pid, rval, cvar; char buf[20]; if (pipe(pchan) == -1){
How is a process chosen for being swapped either in or out? Swap out: a. If the process is idle. b. If process has been in main memory for a long time.
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