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With respect to serial communication define the asynchronous communication.
Asynchronous implies "no synchronization", and therefore does not require sending and receiving idle characters. Though, the beginning and end of each byte of data should be identified by stop and start bits. The start bit shows while the data byte is about to begin and the stop bit signals while it ends. The need to send these additional two bits causes asynchronous communication to be slightly slower than synchronous still it has the advantage as the processor does not have to deal along with the additional idle characters.
Explain the ASCII Character Set? Most programming languages have a means of defining a character as a numeric code and, conversely, converting the code back to the character. ASC
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1. Find the Nyquist rate for the following signals: (a) x(t) = 5 sin 3000Πt cos 4000Πt (b) A binary channel with bit rate 36000 bps is available for PCM voice transmission.
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Q. For the 4-bit D/A converter of Figure, calculate: (a) The maximum analog output voltage. (b) The minimum analog output voltage. (c) The smallest detectable analog outpu
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Q. What is inter digit time? Break time is nominally 61 ms and make time is nominally 39ms. Digits are separated by idle period of 300 ms known as inter digit time. It is vital
Q. For a pyramidal-horn antenna, the maximum directive gain is given by occurring when the aperture dimensions are A ∼ = √3λLandB = 0.81A. The principal-plane beam- widths
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