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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
give proper code for any kind of project in oop c++
discuss hypertext mark up language
Is it possible to create graph form spreadsheets For example IF G5 > 100 THEN "Y" ELSE "N" - It's also possible to create graphs and charts from spreadsheets (such as using
MAC is the abbreviation for: (A) Multimedia access control (B) Media access control (C) Mobile access control (D) Master access point control Ans: MAC is th
Show Library and its types. Libraries constitute a simple meaning of gathering many object files together: 1. Static: during link editing Library code is integrated with t
To apply any algorithm selection of a proper data structure is very significant. An explicit operation might be performed with a data structure in a smaller time however it might n
Data logging This technique involves collecting data automatically using sensors; frequently used when doing scientific experiments or monitoring a system.
What are null values? If the value of a field in a table is indeterminate or unknown, it is known as a null value.
Q. Define Wide Area Network? Wide Area Network (WAN): It takes a large geographical area and frequently owned by a state. Data transfer rate is low (few KBPS to 10 MBPS) and er
What is SAP locking? It is a mechanism for describing and applying logical locks to database objects.
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