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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
The logic circuit given below, converts a binary code y 1 y 2 y 3 into Ans. Gray code is X1 = Y1, X2 = Y1 XOR Y2 , X3 = Y1 XOR Y2 XOR Y3 For
Data Transfer Two most fundamental data transfer instructions in 8086 microprocessor are XCHG and MOV. Let's give illustrations of the use of these instructions. Program 1:
Generally the register storage is faster than cache andmain memory. Also register addressing uses much shorter addresses than addresses for cache and main memory. Though the number
How can we use / display table in a screen? ABAP/4 offers two mechanisms for showing and using table data in a screen. These mechanisms are TABLE CONTROLS and STEP LOOPS.
Weight Training Calculations -Artificial intelligence: Because we have more weights in our network than in perceptrons, first we have to introduce the notation: wij to denote t
Th e ID3 algorithm The calculation for information gain is the very difficult phase of this algorithm. ID3 performs a search whereby the search states are decision trees an
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Q. What is Serial Mouse? Mice that use standard serial port are known as 'serial'. Because Serial ports 1 and 4 (COM1, COM4 under DOS, /dev/ttyS0 and /dev/ttyS3 under Unix/GNU-
Which operations is performed more efficiently by doubly linked list than by singly linked list Deleting a node whose location is given.
how to implemr
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