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What are the requirements for solution of critical section problems?
Mutual exclusion: If process p is implementing in its critical section then no other processes can be executing in their critical sections.
Progress : if no process is implementing in its critical section and some process wish to enter their critical section then only those processes that are not executing in their remainder section can participate in the decision on which will enter its critical section next and this selection can't be postponed indefinitely.
Bounded waiting: there subsist a bound on the number of times that other processes are allowed to enter their critical section after a process has made a request to enter its critical section and previous to that request is granted.
reasons for process termination
How can an index file be used to speed up the access in direct-access files? Have an index in memory; the index gives the key and the disk location of its corresponding record.
Signal handling A signal is used in UNIX systems to inform a process that a particular event has occurred. 1. A signal is produced by the occurrence of a particular event.
Q. Consider a file at present consisting of 100 blocks. Presume that the file control block (and the index block in the case of indexed allocation) is already in memory. Compute h
What is an effector process? The effector process is a method that verifies itself.The effector process exists in particular criteria.
The term Operating System (OS) is often misused. It is common, for example, for people to speak of an OS when they are in fact referring to an OS and to a set of additional applica
Deadlock Prevention Prevention is the name given to method that guarantee that deadlocks can never happen for the reason that the way the system is structured. Since 4 conditio
. A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper
importance of Operating system in modern computers. Also explain various functions & types of operating systems
Referring to Figure below, discuss how you would alter the circuit to obtain: 1. a straightforward amplifier with gain 1, 2. a straightforward amplifier with gain 10, 3. a
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