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Q. Explain Frequency-division multiplexing?
Frequency-division multiplexing (FDM) is a technique for data transmission widely used in telephone, radio, and cable TV systems in which the transmission frequency spectrum (i.e., bandwidth) is divided into smaller bands known as subchannels.
Data transmission between two stations can be achieved in either simplex, half-duplex, or full-duplex mode. In a simplexmode,mainly used in radio and TV broadcasts, information travels only in one direction. Thismode is rarely used in data communications. In half-duplexmode, used by radio communications, information may travel in both directions, but only in one direction at a time. The transmitter becomes the receiver and vice versa. In a full-duplex mode, information may travel in both directions simultaneously. This mode, used in telephone systems, adopts two different carrier frequencies.
Explain the disadvantages Off-the-shelf - can be over-complex since it tries to cover as many characteristics as possible (for example most users of Word only utilise about
Define the Identifiers of c language? In C the names of the functions, variables and arrays and various other user - defined items are called identifiers. The first character o
Object oriented programming languages directly show the real life objects. The features of OOPL as inheritance, polymorphism, and encapsulation makes it strong.
Explain Sequential Sharing In this sharing method, a file can be shared by just one program at a time, i.e. file accesses by P1 and P2 are spaced out over time. A lock field ca
Purpose of storage: Several different forms of storage, based on different natural phenomena, have been invented. So far, no practical universal storage medium persists, and a
We have to make an application that will dynamically add a menu strip with menu items to a form(ie NOT dragged and dropped onto the form) in Visual Basic. The menu strip should be
Which device consume minimum power ? Ans. Minimum power consume by CMOS as in its one p-MOS and one n-MOS transistors are connected in complimentary mode, so one device is ON a
Q. Illustrate about fourth generation computers? One of the main milestones in IC technology is Very large scale integration (VLSI) where thousands of transistors can be integr
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Explain the Accuracy o f an ADC. Ans Accuracy- The accuracy of D to A converter is the difference among actual output voltage and the expected output voltage in D to A c
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