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Q. What do you understand by Scan Codes?
A scan code is a code produced by a microprocessor in keyboard when a key is pressed and is unique to key struck. When this code is received by computer it reports an interrupt and looks up scan code table in BIOS and realize which keys have been pressed and in what combination. Special memory locations known as status bytes tell the status of locking and toggle keys for example Caps lock etc. Every key press produces two different scan codes - one on key-push down known as Make code and another on its popping back known as Break code. This two-key scheme enables the computer to tell when a key is held pressed down for example ALT key when pressing another key say CTRL-ALT-DEL.
Applications of Microprogramming: Microprogramming application:: emulation o Use of a micro program on 1 machine to execute programs initially written to run on ano
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With the help of block diagram Elucidate basic time division time switching method. Basic Time Division Switching: Functional blocks of a memory based time division switching
E-Cash: E-cash is cash shown by two models. One is the on-line form of e-cash (introduced by DigiCash) which permits for the completion of all types of internet transactions.
Adding Operations of describe function Whenever take a look at the operations in OOPs you find queries about attributes or associations in object model (such as student.name)
Q. Example on Multi-statement FORALL construct? The subsequent statements set every element of matrix X to sum of its indices. FORALL (i=1:m, j=1:n) X(i,j) = i+j an
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Before proceeding with its execution, each process must acquire all the resources it needs is called ? Ans. Hold and Wait is requires in each process should acquire all the res
Describe the advantage of using Booth algorithm? Ans: a) It achieves efficiency in the number of additions needed when the multiplier has a few large blocks of 1's. b) It
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