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Q. Programmed input - output technique for computers?
Programmed input/output is a useful I/O technique for computers where hardware costs need to be minimised. Input or output operation in these cases may involve:
a) Transfer of data from I/O device to processor registers.
b) Transfer of data from processor registers to memory.
With programmed I/O method responsibility of processor is to constantly check status of I/O device to check whether it's free or it has completed inputting data. So this method is quite time consuming where processor wastes so much time in checking and verifying status of an I/O device. Figure (a) gives an illustration of use of programmed I/O to read in a block of data from a peripheral device into memory.
#example of cascading rollback#
l need a help for my project pllz:) Write a program that will simulate ATM machine. The Program should prompt the user to enter a valid PIN password number of 5 digits (PIN: 12312)
The hexadecimal number for (95.5) 10 is ? Ans. (95.5) 10 = (5F.8) 16 Integer part Fractional part 0.5x16=8.0
Discuss the role of handler’s classification?
Construction of j-k using 4-bit shift register
Error detection mechanism may include checking mechanical and data communication errors. These errors must be reported to processor. The illustrations of kind of mechanical errors
When a window is repainted by the AWT painting thread, it sets the clipping regions to the area of the window that needs repainting.
What are the types of smart cards utilized in e-commerce? Usually, there are two types of smart cards as: Memory smart cards, that can be viewed by minuscule removable read
What is time slicing? With this technique each program runs for a short period known as a time slice, and then another program runs for its time slice and so on.
Q. Define PVM library routines? In this segment we will give a short description of the routines in PVM 3 user library. Each PVM program must comprise the PVM header file 'pvm3
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