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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 architectural transformation? This is a more radical approach to software change then maintenance as it involves making significant changes to the architecture of the s
Q. Illustrate Basic COCOMO model? Basic COCOMO model:- It provides an order of magnitude of cost. This model utilizes estimated size of software project and the type of softwar
developer
Explain in detail about data modeling Data modeling creates use of the ERD. Having of 3 interrelated information. The data object. Relationships. Attributes
Q. Why does the software design improve when we use object-oriented concepts? Ans. The software design gets betters when we use object-oriented concepts because 1.Object-o
Q. Show the cost drivers used in COCOMO model? A variety of attributes of cost drivers used in COCOMO model are: 1. Physical attributes : These are worried with required
Define Data Flow Diagram. A Data flow diagram is a graphical representation that depicts information flow & the transforms that are applied as data move from input to output.
Iterative waterfall model The iterative waterfall model is as shown in the following figure. Requirement gathering phase in which all needs are identified. The design
Waterfall Model It is the oldest, simplest and most widely used process model. In waterfall model, every phase of the life cycle is finished before start of a new phase. It's
What are the conditions exists after performing validation testing? After performing the validation testing there two situations arise. The function or performance characterist
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