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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.
What is turnaround time? Turnaround time is the interval from the time of submission to the time of completion of a process. It is the sum of the periods spent waiting to get i
Q Use as few gates as possible, design a NAND-to-AND gate network that realize the following Boolean algebra expression. ABCD + A'BC'D + A'BC'D' + A'BCD + (A'B'C'D' + A'BCD')
Illustrate functional diagram of digital multiplexer . Write the scheme of a 4- input multiplexer using basic gates (AND/OR/NOT) and explain its operation. Ans: Multiple
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how binary codes are used
1. Create the following ADTs. (a) Write the constructor function makestk, predicate function emptystk and mutator functions pushstk and popstk: i. makestk returns a new stack
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