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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.
A software tool that accepts as input source code, specifications, test criteria, or data structure definitions; uses these inputs to make test input data; and, sometimes, verifies
The terms "test scenario" and "test case" are certain used synonymously. Test scenarios are test cases or test scripts, and the series in which they are to be implemented. Test sce
Q. What is Equivalence class testing? Equivalence class testing is based on the partitioning the input domain of a program into a number of equivalence classes so that the test
What are the task involved in design process of SDLC General tasks involved in the design process are the following: i) Design various blocks for overall system processes.
Question 1 V-Model and Spiral Model, Waterfall Model are of the software development processes. Companies are using these models to have a systematic and defined approach in softw
explain dfd
What is a data object? Data object is a collection of attributes that act as an aspect, characteristic, quality, or descriptor of the object.
What are the characteristics of Software? Software is engineered or modified; it is not manufactured in the traditional sense. Software is free of wear out. Though the
Sequential circuit:- A sequential circuit is an interconnection of gates and flip-flops. The gates by themselves constitute a combinational circuit, but when contained with th
Problem: (a) Draw an Entity Relationship Diagram for the given case study. Show entities and relationships on the diagram (attributes should not be shown). Cardinality and op
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