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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 is the meaning of requirement engineering? Requirement engineering defined as the process of setting up the services that the customer requires from the system and the co
1. Testing that employs a test data selection method designed to obtain test data capable of demonstrating the absence of a set of pre-specified faults, typically, frequently happe
Explain the role and functions of a Systems Analyst in the overall project development.
Differentiate between regression testing and re-testing - Re-testing: - It means testing a single defect that was just fixed. Only one test is performed here. - The ta
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Testing method to satisfy coverage criteria which need that for each decision point, every possible branch [outcome] be implemented at least once. Contrast with testing, path; test
Bottom-up approach, as the name suggests, is the differing of the Top-down method. This process begins with building and testing the low level modules first, working its way up
Q. Explain about token count - software metrics? Token count :- A program is considered to be series of tokens and if we count the number of tokens, some interesting results m
What are the demerits of spiral model? i. It is depends on customer communication. If the communication is not suitable then the software product that gets developed will not r
Q. Explain Predictive validity? Predictive validity: It is the potential of the model to predict future failure behaviour from present and past failure behaviour. This capabi
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