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Explain carry save addition (CSA) process.
Ans: Instead of allowing the carries ripple along the rows, they can be saved and then introduced into the next roe at the right weighted position. Delay in CSA is less than delay via the ripple carry adder.
Described generated and propagate function?
Ans: The generate function is following:
G =x y and
The propagate function is given as P =x +y
The Function code currently active is ascertained by what Variable? The function code at present active in a Program can be ascertained from the SY-UCOMM Variable.
Bring out the importance of hierarchy of operators? The operators within C are grouped hierarchically according to their precedence(i.e., order of evaluation). Operations w
What is called PCP? The phenomenon of un-decidability is not confined to problems concerning automata. An un-decidable problem concerning on simple manipulation of strings is k
Q. Show the instruction execution by using the micro-operations? A simple instruction can require: Instruction fetch: fetching instructions from the memory. Instruc
zero, one, two three address instructions
What is chattering as applied to mechanical switches used in digital systems and why do they occur? What is its effect on the functioning of a sequential circuit? Ans Chat
What controls the screen flow? The SET SCREEN and LEAVE SCREEN statements controls screen flow.
Q. Characteristics of input- output channels? The I/O channel represents an extension of DMA concept. An I/O channel has ability to execute I/O instructions that gives complete
Which scheduler selects processes from secondary storage device? Ans. Medium term scheduler selects processes from secondary storage device.
Tools for Performance Measurement The reason behind these algorithms has been to gain a speed up and improve the performance. After the parallel algorithm has been written and
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