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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).
Draw a circuit of TTL gates with Wired-AND connection and explain its operation. Wired - AND Connection In digital IC's NAND and NOR gates are most frequently used. For th
What is Difference between write back and write through cache? A caching method wherein modifications to data into the cache aren't copied to the cache source till absolutely n
Give difference between assembler and interpreter. Assembler: It is the translator for an assembly language of computer. An assembly language is a low-level programming langu
what is modular system ? list important properties of modular system
What are the features of PROM? They are programmed directly by the user. Faster Less expensive More Flexible
What happens if a function module runs in an update task? The system performs the module processing asynchronously. Instead of carrying out the call immediately, the system w
What is secondary list? It permits you to enhance the information presented in the basic list. The user can, for example, select a line of the basic list for which he require
what is distortion
Algorithm to insert a key in B-tree is as follows: 1. First search is completed for the place where the new record must be put. As the keys are inserted, they are sorted into
Q. What is Accumulator Register? Accumulator Register (AC): This register is used to store data temporarily for computation by Arithmetic and logic unit (ALU). AC generally c
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