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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.
Give difference between top down parsing and bottom up parsing. Top down parsing: Specified an input string, top down parsing tries to derive a string identical to this by s
Background, Examples and Hypothesis: Now we will switch off with three logic programs. So very firstly, we will have the logic program representing a set of positive examples
how binary codes are used
What is the difference between the specparam and parameter constructs? Specparam is a special kind of parameter which is intended to specify only timing and the delay values. K
What is the advantage or disadvantage of using INADDR_ANY instead of the IP address of the computer running on the server? The format of TCP/IP, structure sockaddr_in defines u
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Associativity of Connectives: In order to tell us brackets are useful when to perform calculations in arithmetic and when to evaluate the truth of sentences in logic. Imagine w
Q. How to copy files from a drive and directory? You can copy files from a drive and directory other that the currently selected one. However in that case, you need to speci
dear sir,kindly describe the above tpoic completely
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