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What is program controlled I/O?
In program controlled I/O the processor repeatedly checks a status flag to achieve the needed synchronization among the processor and an input and output device.
Generally the register storage is faster than cache andmain memory. Also register addressing uses much shorter addresses than addresses for cache and main memory. Though the number
What is event-driven control? Control resides within a dispatcher or monitors that language, subsystem or OS provider. Developers attach application process to events and dispa
Mention the two subsystem relationship. The relationship among two subsystems can be: Client-server Peer-peer
dynamic storage allocation technique
Ground substitution: Here the act of performing an instantiation is a function like there is only one possible outcome means we can write it as a function. And the notation Su
Why a task can n ot return a value? If tasks can return values then Let's take a look at the below example. A=f1(B)+f2(C); and f1 and f2 had delays of say 5 and 10? Whe
advantages of lfu
Why data bus is bidirectional and address bus is unidirectional in most microprocessors? The data bus is bidirectional because the data bus has to transfer data among the CPU a
Truth table of NAND and NOR can be made from NOT (A AND B) and NOT (A OR B) correspondingly. Exclusive OR (XOR) is a special gate whose output is one only if two inputs aren't equa
What is 'inode'? All UNIX files have its description kept in a structure called 'inode'. The inode have info about the file-size, its location, time of last access, time of las
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