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DMA controllers in computer system:
INTERFACE CIRCUITS
o Provides a storage buffer for at least one word of data.
o Circuitry required connecting an I/O device to a computer bus
o Contains address-decoding circuitry
o Contains status flag that can be accessed by the processor.
o Generates the appropriate timing signals required by the bus control scheme.
o Performs format conversions
o Ports
o Parallel port
o Serial port
Keyboard to processor connection
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Program to transfer 10 byte of data from DMS to EMS using 8086 instructions
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Why SRAM are said to be volatile? Because their contents are lost when power is interrupted. So SRAM are said to be volatile.
explain about cloud computing
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