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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.
Show how finite state machine model helps in designing a switching system and give a typical example. Switching system fundamentally belongs to the class of finite state machi
Existential Elimination : Now we have a sentence, A, is with an existentially quantified variable, v, so then just for every constant symbol k, that it does not appear anywhe
What is the difference between, page directive include, action tag include? Ans) One difference is whereas using the include page directive, in translation time it is making t
Q. Explain Direct Addressing Mode with example? Direct Addressing Mode A direct operand signifies to contents of memory at an address referred by the name of the variable.
What do they signify Which one is critical for calculating maximum clock frequency of a circuit? Ans) Set up time constraint implies how late the input signal can arrive befor
Obtain 1's and 2's complement of 1010 using only four-digit representation. Solution: 1's complement: 1's complement of 1010 is Please note that wherever you ha
How do you pass basic types by reference? In the case of basic types like bool, int, uint, etc. you can in fact choose among the two forms. If you prefix the method parameter
Quantifiers and Variables - propositional model: There is one question is arrives that 'What do sentences containing variables mean?' In other way of words, how does a first-o
The three main elements of LDB are:- Structure Selections and Database Program.
Explain Hybrid Network in Standard Telephone hand set. Hybrid network: The hybrid network (sometimes termed as a duplex coil or hybrid coil) in a telephone set is a particula
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