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Question: Concurrency and Synchronization
a) Define the following terms:
I. Critical section II. Mutual Exclusion III. Deadlock IV. Starvation.
b) Name three methods which are usually used in synchronizing processes.
c) What are semaphores used for?
d) What is the concept of an atomic operation?
e) Describe the concept involved in the producer - consumer problem.
f) Semaphores support two types of atomic operations? What are they? And what does each type of operation represent?
g) There are two types of semaphore implementation. State them and what are the operations involved in each of them.
How many disk operations are needed to fetch the i-node for the file /usr/ast/courses/os/handout.t? Assume that the i-node for the root directory is in memory, but nothing else alo
What is linked allocation, as detailed in text? Directory has pointers to first and last blocks of file. Every block of file (except last) has pointer to the next block.
Explain the OS/2 Operating System Like NetWare, OS/2 manage resources at three levels, as shown in Figure 4.5 Resources may be maintained at the session, process, and thread le
What is an operating system and what are the different types of operating systems? Operating System An Operating System or OS is a software program that allows the compute
a) The barber shop has one barber, one barber chair, and n chairs for waiting customers, to sit on. If there are no customers present, the barber sits down in the barber chair and
when demand is 24000 units/year, production rate is 48000 units/year, setup cost is rs 200 per setup, carring cost is rs 20 per units/year, and economic batch quantity is 692.8203
Q. Explain about Input - Output System Management? I/O System Management The module which keeps track of the status of devices is known as I/O traffic controller. Every
simple explanation
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Question: a) Each process is represented in the operating system by a process control block (PCB). The PCB contains many pieces of information associated with a specific proce
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