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Explain keyboard interfacing to 8088 through 8279 . The 8279 is a programmable keyboard and display interfacing component which scans and encodes up to a 64-key keyboard and con
Q. What do you mean by Companding? In order to lower the crest factor of a waveform, so as to produce better performance, a process known as companding is used. It works like a
Explain with proper diagram all the six modes of operation of programmable interval timer 8254. Mode 0: The output in mode 0 is initially low, and will stay low for the perio
Q. Explain the working of spectrum analyzer and its applications. OR Draw block diagram of spectrum analyzer and explain its operation write down its importance applica
Among copper and mercury which is better conductor of electricity?
Q. Develop a schematic diagram of a system in which the D/A converter of Figure can be employed in a digital voltmeter.
Addition of trivalent impurity to a semiconductor creates many (A) Holes. (B) Free electrons. (C) Valance electrons. (D) Bound electrons. Ans: Addition o
Q. Define amplification factor, drain resistance and transconductance and derive the relationship between drain resistance and trans conductance? Drain resistance It is the
Write short notes of the following. a) Microprocessor b) Modes of data transfer. c) I/O processor d) Associative memory e) Software and Hardware interrupt
Q. For the circuit of Figure, determine and sketch i L (t) and vC(t) for inductance values of (a)3/4 H, (b) 2/3 H, and (c) 3/17 H. Note that the inductance values are chosen her
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