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DMA data transfer
The position of the DMA controller between the other components in a computer system. The CPU communicates with the DMA by the address and data buses as with any interface unit. The DMA has its own address, which activates the DS and RS lines. The CPU initializes the DMA by the data bus. Once the DMA receives the start control command, it can start the transfer among the peripheral device and the memory.
What are the benefits of evolutionary prototyping? i. Fast release of the working system. ii. User is engaged while developing the system. iii. More functional system can
Q. Assuming the Putnam model and given S = 100,000 C = 5000 and D 0 = 15 calculate the development time t d. Ans: In Putnam model (S/C ) 3 = D 0 t d 7 lhs = 20
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Q. For the flow graph showed in figure compute McCabe's Cyclomatic Complexity. Ans: In this flow graph Number of regions are 5 hence the Cyclomatic complexity is = 5
Implementing the program with all possible combinations of values for program variables. Feasible only for small, simple programs.
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