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Q. Explain functions of direct memory access?
Though CPU intervention in DMA is minimised however it should use path between interfaces that is system bus. So DMA involves an extra interface on system bus. A scheme known as cycle stealing permits DMA interface to transfer one data word at a time, after that it should return control of bus to processor. Processor merely delays its operation for one memory cycle to permit directly memory I/O transfer to 'steal' one memory cycle. When an I/O is requested processor issues a command to DMA interface by transmitting to DMA interface the subsequent information (Figure below):
Figure: DMA block diagram
Q. Feature of micro-instruction execution? Feature of micro-instruction execution is micro-instruction sequencing which involves address calculation of next micro-instruction.
What are the Application-oriented languages Application-oriented languages are highest level, meaning very easy to write and assembly languages are the lowest, meaning hardest
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What is the kernel? A more common definition is that the OS is the one program running at all times on the computer ,usually known as the kernel, with all else being
You are to write a C program called big_mult.c that multiplies two unsigned 64-bit integers, x and y, read from the command line. The output is a pair of unsigned 64-bit integers r
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Write a class encapsulating the concept of a circle? I have been working on this program for awhile and this is all I have so far... What are my flaws in the program besides not ha
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Can you define a field without a data element? Yes. If you require specifying no data element and thus no domain for a field, you can enter data type and field length and a sh
Explain the techniques, which are used to gain on the number pairs. In rural areas, subscribers are usually dispersed. This is both unessential and expensive to give a dedicate
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