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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.
How will you fine-tune a class? It is useful to fine-tune classes before writing code in order to examine development or to improve performance. The purpose of execution is to
Q. Rules for calling assembly subroutines from? The rules for calling assembly subroutines from C are: (i) Memory model: The calling program and called assembly programs sh
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Which two properties are on every validation control? Two properties are:- a) Control to validate b) Error Message.
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Objectives After examining this unit, learner's will be able to understand discuss the importance and needs of interconnection network; explain the part of interconn
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