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Explain the basic architecture of digital switching systems.
An easy N X N time division space switch is demonstrated in figure. The switch can be shown in an equivalence form as a two-stage network along with N X 1 and 1 X N switching matrices for the first and second stages correspondingly as demonstrated in figure. The network has one connection interconnecting the two stages. All inlet/outlet is a single speech circuit consequent to a subscriber line. The speech is carried like PAM analogue samples or PCM digital samples, occurring at 125-µ s intervals. When PAM samples are switched in a time division manner, the switching is termed as analogue time division switching. When PCM binary samples switched, then the switching is termed as digital time division switching. In figure, the interconnected by an appropriate control mechanism and the speech sample transferred by the inlet to the outlet.
FIG - Two - stage Equivalence
Q. Prove using Boolean Algebra 1. AB + AC + BC' = AC + BC' 2. (A+B+C) (A+B'+C') (A+B+C') (A+B'+C)=A 3. (A+B) (A'+B'+C) + AB = A+B 4. A'C + A'B + AB'C + BC = C + A'B
What is a pre-processor? A pre-processor is a program that procedure the source code before it passes by the compiler. It handles under the control of pre-processor directive.
Ans) The simplest way is to make a new selection with Ellipse Select tool and stroke it (Edit -> Stroke Selection...). We welcome patches that add tools to draw geometric primitive
What is the File-system security Most commercial servers use a powerful operating system as base that provides good methods of file-system security. Some servers require additi
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Differentiate between Protection and Security Operating system contains a collection of objects, hardware or software. Every object has a unique name and can be accessed via a
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