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When can a user program execution be interrupted?
It won't be desirable to interrupt a program when an instruction is being executed and is in a state such as instruction decode. The most desirable place for program interruption will be when it has completed the prior instruction and is about to begin a new instruction. Figure below shows instruction execution cycle with interrupt cycle where interrupt situation is acknowledged. Please remember that even interrupt service routine is also a program and after recognizing interrupt next instruction executed by instruction cycle is first instruction of ISR (interrupt servicing routine).
How can a parent and child process communicate? A parent and child can communicate by any of the normal inter-process communication schemes (pipes, sockets, message queues, sha
Explain The Storage Class extern The Storage Class extern : One method of transmitting information across blocks and functions is to use external variables. When a variable is
Convert the given S-R flipflop to a D-flip flop. Ans: The Truth Table for S-R Flip-Flop is illustrated in Fig.(a) and truth table of D Flip-Flop is illustrated in Fig.(b)
Write down the basic performance equation? T=N*S/R T=processor time N=no.of instructions S=no of steps R=clock rate
Explain about the term Middleware. Middleware is the term frequently used to explain the application or business logic present within an application server. Unfortunately, simi
Q. How are comparisons done in 8086 assembly language? There is a compare instruction CMP. Though this instruction just sets the flags on comparing two operands (both 16 bits
What is an I/O buffer? What is the advantage of buffering? Is buffering always effective? Justify your answer with help of an example. One type of I/O requirement arises from
Existential Introduction: Now if we have any sentence as, A, and variable, v, that does not occur in A, so then for any ground term, g, such occurs in A, than we can turn A in
What is a deadlock? A deadlock is a situation that can increase when two units, A and B use a shared resource. Assume that unit B cannot complete its task unless unit A complet
TRP is the number of clock cycles required to terminate access to an open row of memory, and open access to the next row. It stand for row precharge time.
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