A virtual function is a member function defined in a base class that is redefined (overridden) by a derived class.

The devices that deliver data and instructions to the machine are known as input devices.

The main use of this term in Java is to distinguish between class attributes and arguments with similar names.

A string in Java is an object that represents a collection of char values. A character array works in the same way as a Java string.

DC Potentiometer is an instrument which measures voltage, current and resistance. It can be used to calibrate ammeter and voltmeter.

It handles service requests received from the transport layer and forwards them to the data link layer.

The Windows operating system from Microsoft is a graphical operating system.

Nyquist Stability Criterion gives the frequency response as well as comments on the stability and the relative stability of the system.

We can lent or borrow money from one entity to another. The price to be paid for the use of a certain amount of money for a certain period of time is known as interest.

The Conventional Energy Sources are helpful in producing electrical power generation from Hydro, Thermal, Nuclear and Diesel power stations.

An annuity is a sequence of equal payment or a sequence of regular payment at regular intervals or in other words.

The Non-Conventional Energy Sources are those which are available for us at any time and are free of cost.

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.

The DC Motor is an electrical machine which can be classified as Separately excited DC Motor, Permanent Magnet and Self excited DC Motor.

The DC Motor is an electrical machine which converts mechanical energy into electrical energy. It works on the principle of induced emf.

An interrupt is a condition that arises during the working of a microprocessor. The interrupts of 8086 initiate interrupt service through ISR

The circuit which produces the samples of the input voltage and holds those values for a definite amount of time is sample and hold circuit.

The precision rectifier has the capability of rectifying voltages which are of smaller magnitude than the forward voltage drop.

The losses in optical fiber are Absorption loss, scattering loss, dispersion loss, radiation loss and coupling loss.

When we apply any of the following operation on a matrix, then it is called an elementary transformation.