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What is semaphores?
A semaphore 'S' is a synchronization tool which is an integer value that, apart from initialization, is accessed only by two standard atomic operations; wait and signal. Semaphores can be used to deal with the n-process critical section problem. It can be also used to solve lots of Synchronization problems.
Does swapping increase the Operating Systems' overheads? Justify your answer. A process can be swapped out temporarily of memory to a backing store and after that brought back
draw circuit diagram and the truth table that represent demultiplexer
A set of techniques that allow executing a program which is not entirely in memory is called ? Ans. virtual memory which allows executing a program that is not entirely in me
Erasable programmable read only memory (EPROM) This is a special type of PROM which can be erased by exposing it to ultraviolet (UV) light. Once it has been erased, it can be r
What is the fundamental difference between the transactions made using Smart Card and E-cash? Smart Card and E-Cash: E-cash storable smart cards can dispense and store ca
benefit of hardware protection
Program counter and Stack pointer all have 16 bits.
Associative Array Processing Consider that a list of record or a table is stored in the memory and you want to search some information in that list. For example, the list havin
What are the General Security Issues Many issues exist when linking a computer system to the Internet or indeed to an external link via a network set up. There are numerous way
Question 1 What are the different schemes in power management? Explain 2 Explain the functions of parallel port in detail 3 (a) List and explain the functions of keyboard
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