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Explain the Reference Count
The system relates a reference count along with each memory area to point out the number of its active users. This number is incremented while a user accesses that area and decrements while user stops using that. The area is free if the reference counts drops to zero. This scheme is extremely simple to implement though incurs incremental overheads.
DMA controllers in computer system: DMA Controller Part of the I/O device interface DMA Channels Performs functions that in general would be performed by t
Give an account of the issue pertaining to compilation of if statement in C language Control structures as if cause significant gap in between the PL domain and the execution d
Q. Explain about wildcard character in DOS? Sometimes you may like to list files having similar names. Let as suppose that these files are present in a root directory of drive
Use 4 D-bascules connected in serial all synchronized with the similar CLK. Then connect all 4 outputs, & 2nd output must reverse, of the D-bascule to an AND logic. The output of t
What is program-controlled I/O? In program controlled I/O the processor repeatedly checks a status flags to achieve the needed synchronization among the processor and an input
How can you manipulate the presentation and attributes of interactive lists? ---Scrolling by Interactive Lists. ---Setting the Cursor from within the Program. ---Changing
Define miss rate? It is the number of misses' states as a fraction of attempted accesses.
What is a Match Code? Match code is a tool to help us to find for data records in the system. Match Codes are an proficient and user-friendly search aid where key of a record i
Accessing the Operands: operands are usually place in one of two places: -registers (32 int, 32 fp) -memory (232locations) registers are -simple to spe
Q. Functions for various communication modes? MPI offers both non-blocking and blocking send/transmitting and receive operations for all modes. Functions for various commun
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