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Q. Make an instruction execution feasible?
What are the functions that a control unit performs to make an instruction execution feasible? Instruction execution is achieved by executing micro-operations in a specific sequence. For different instructions this sequence can be different. So the control unit should perform two elementary functions:
However how are these two tasks achieved? The control unit produces control signals which in turn are responsible for achieving the above two tasks.
Why do we need DMA? DMA is used to transfer the block of data directly among an external device and the main memory without the continuous intervention by the processor.
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ADDING LAYERS TO THE TIMELINE AND GIVING MOTION TO THE LAYER Step 1: Choose Layer from Common toolbar after that draw a layer. Step 2: Write the text inside Layer. Step
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