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All components of computer communicate with processor by the system bus. Which means I/O devices required to be attached to system bus. But I/O devices aren't connected directly to computer's system bus. In its place they are attached to an intermediate electronic device interface known as a device controller that in turn is attached to system bus. Therefore a device controller is an interface between a system bus and an I/O device. On one side it knows how to communicate with I/O device associated to it and on the other it knows how to communicate with computer's CPU or processor and memory via the system bus.
System Software 1. Explain language processing? Explain its activities in detail. 2. Discuss briefly about Assembler directives. Also explain about Macro definition and call
External interface is interface between I/O interface and peripheral devices. Interface can be characterised into 2 main categories: (a) parallel interface and (b) serial interface
What are SPA/GPA parameters (SAP memory) SPA/GPA parameters are field values saved globally in memory. There are two ways to use SPA/GPA parmeters: By setting field attrib
Name the four steps in pipelining. Fetch : Read the instruction from the memory. Decode : Decode the instruction and get the source operand. Execute : Perform the operat
Q. Explain the Instruction Decode? Instruction Decode: This phase is performed under control of Control Unit of computer. The Control Unit determines the operation which is t
Q. Addressing Relationship for Main Memory and Cache? In the normal case there are 2k words in cache memory and 2n words in main memory. The n-bits memory address is splitted i
Q. How do the registers help in instruction execution? We will discuss this in following steps: Step 1: First step of instruction execution is to fetch instruction which
Which structure can be used as a criterion for classification of data structures used in language processing. And. Nature of a data structure, purpose of a data structure and l
A sequential circuit is signified by a time sequence of external inputs, external outputs and internal flip-flop binary states. So firstly a state diagram and state table is used t
Or-Introduction : Thus if we know about one thing is true, and also we know that a sentence when there thing is in a disjunction is true. Here if we consider example, like we
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