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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.
Why Build and fix model is considered as ad-hoc software development model?
Based on the disciplines of engineering, AI and physiology robotics is concerned with building robot machines with physical capabilities akin to human beings which are cont
Bitwise Left Shift and Right Shift Operators: > shift-expression : additive-expression shift-expression > additive-expression The bitwise shift operators shift their
What are the Objectives of UML trace development of UML; recognize and describe notations for object modelling using UML; describe a variety of structural and be
Which datatype cannot be used to define parameters. Type F datatype is not used to explain parameters.
Q. Illustrate Edge-Triggered flip-flops ? Edge-triggered flip-flop is used to synchronize state change at the time of a clock pulse transition in place of constant level. A num
1. The missionaries and cannibals problem. Three missionaries and three cannibals are on the left river bank, with a boat that can hold one or two people. If on either side of the
Trunks are the lines that run between (A) subscribers and exchange (B) switching system and power plant (C) Local Area Network (D) switching syste
Q. Illustrate the Execute Cycle? The fetch and indirect cycles include a small, fixed sequence of micro-operations. Every one of these cycles has fixed sequence of micro-operat
Why a task can n ot return a value? If tasks can return values then Let's take a look at the below example. A=f1(B)+f2(C); and f1 and f2 had delays of say 5 and 10? Whe
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