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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.
Q. Classes of data items in a data dictionary? There are three classes of data items in a data dictionary 1) Data element- It is the smallest unit of data that cannot be me
What is Branch coverage? Ans) Test coverage criteria which needs that for each decision point each possible branch be implemented at least once. Syn: decision coverage. Contrast
The company wants to offer an incentive of free shipping to those customers who have not returned for two months. Create a procedure named PROMO_SHIP_SP that determines who these c
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State about the Data Dictionary This is another tool of requirement analysis that reduces complexity of DFD. A data dictionary is a catalog of all components of a system. DFD
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