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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.
Explain difference between Scanning and parsing. Scanning and parsing: Scanning process is the process of recognizing the lexical components in a source string whereas parsin
Simplify the given expressions using Boolean postulates XY + X‾Z‾ + XY‾Z (XY + Z) Ans. XY + X‾Z‾ + XY‾Z (XY + Z) = XY + X‾Z‾ + XY‾Z (XY + Z) = XY + X‾Z‾ + XXYY‾Z
Explain signed binary number system. Ans. Signed Binary Numbers: In decimal number system positive numbers are signified by (+) sign and negative numbers are represented b
Optimum solution based on constraint problems: Whether depending on what solver you are using so there constraints are often expressed as relationships between variables as e.
We use VuGen to make a Vuser script by recording a user performing typical business processes on a customer application. VuGen makes the script by recording the activity among the
PROCEDURE TO CREATE PROJECT IN COLLABORATION SYSTEM
Q. Illustrate Characteristic tables of flip-flops? Excitation Tables Characteristic tables of flip-flops present the subsequent state when inputs and present state are kno
Program 'preemption' is? Ans. Forced de allocation of the CPU from a program that is executing on the CPU is called preemption program.
What happens if the both source and destination are named the same? Ans) The import operation present in MS Access does not overwrite or change any of the existing tables or obj
Resource Dependence The parallelism among the instructions may also be affected because of the shared resources. If two instructions are using the related shared resource t
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