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What are interrupts?
Interrupt: An interrupt is a hardware mechanism which enables an external device, classically input/output devices, to send a signal to the CPU. An interrupt signal requests the CPU to interrupt its present activities and attend to the interrupting devices requires. A CPU will check interrupts only after this has done the processing of one instruction and before this fetches a subsequent one.
How branching takes place in Instruction pipeline. Explain with suitable examples
The current 32 and 64 bit machines can represent integers of around 9 digits and 30 digits respectively, while various scientific and mathematical applications have to represent in
What is overflow, underflow case in single precision(sp)? Underflow-In SP it means that the normalized representation needs an exponent less than -126. Overflow-In SP it mea
Any function can be expressed in a truth table.A truth table lists all possible combinations ofinputs and gives the output produced in eachcase.Truth tables must include all combin
What is Instruction Cycle A program residing in the memory unit of the computer having of a sequence of instructions. The program is implemented in the computer by going throu
Explain LRU Page replacement algorithm. LRU policy: It expands to least recently use. This policy proposes that we remove a page that last usage is farthest from present time
What is interaction modeling? Interaction model explains interactions within a system. The interaction model explains how objects interact to produce useful results. It is a ho
Explain Lexical substitution during macro expansion ? Lexical substitution is used to produce an assembly statement from a model statement. Model statements have 3 kinds of str
Does swapping increase the Operating Systems' overheads? Justify your answer. A process can be swapped out temporarily of memory to a backing store and after that brought back
create a BCD adder combinational ckt. that adds 2 digit BCD inputs
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