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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.
Define system space. Management routines are part of the operating system of the computer. It is suitable to assemble the OS routines into a virtual address space.
Subtraction 11011-11001 using 2's complement. Ans. 11011 - 11001 = A - B 2's complement of B = 00111 1 1 0 1 1 + 0 0 1 1 1 1 0 0 0 1 0 Ignore carry to get answer as 00010 = 2.
Describe the various characteristics of UDP protocol. The characteristics of the UDP are as follows: End to end: UDP is transport protocols that can distinguish between
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(a) Convert the following number to single precision IEEE 754 based on the procedure described in class and in the notes. Express the result in hexadecimal. Show all your work.
Main script section ("Sub Main .. End Sub) and function bodies should fit within an A4-page (approx. two monitor-pages). If the code doesn't fit it is a candidate to do more decoup
Differentiate between Transport and Session layers of OSI model. OSI Model Transport Layer The transport layer utilizes the services provided through the network layer, as
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As per the JMS specification, when you are in a transaction, the acknowledge Mode is ignored. If acknowledge() is known as within a transaction, it is ignored.
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