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The term human–computer interaction (HCI) is used widespread since early 1980s. Second World War provided impetus …

The Digital to Analog converter is an electronic device which converts digital signal to analog signal. Weighted Resistor and R-2R Ladder are its types.

We use small signal transistor model to analyze h-parameters. A transistor can be treated as a two port terminal.

The block diagram of a TV communication system consists of a TV transmitter and a receiver. The transmitter consists of two units.

The microprocessor 8086 minimum mode and maximum mode operation is decided by signal MN/MX’. When the signal MN/MX’ = 1 the 8086 minimum mode is active.

The three basic transistor configuration are CE, CB and CC. A transistor is a three terminal device Emitter, Base and Collector.

Boolean algebra which deals  with variables and binary numbers. This algebra helps to simplify the Boolean variables

Superposition theorem is applicable to circuits with linear elements. They are not applicable to power since it is a non-linear quantity.

All Electronics Blogs

The convolution theorem states that the transform of convolution of f1(t) and f2(t) is the product of individual transforms F1(s) and F2(s).

The clipper circuits are basically used to clip the portion of any input signal without changing the remaining part of the input waveform.

UPS are used widely in order to receive a continuous supply when there is no main supply available.

The 8051 interrupts are INT0, INT1,TO ,T1 , TI/RI. All these interrupts are controlled by IE (interrupt enable) register.

Crystal Oscillator is specially designed in a circuit to provide low impedance when it operates in series-resonant mode and high impedance.

The PLA consists of two programmable arrays, one of which is Programmable AND array and Programmable OR array

The 8255 microprocessor is also known as Programmable Peripheral Interface. It has 24 I/O pins. The three 8 bit ports are PA, PB, PC.

There are many applications of DSP in the present era. Such as in speech coding and compression, electrocardiography and many more.

Frequency Modulation is the technique in which the frequency of a carrier signal is varied according to the message signal.