In electronics, 'biasing' usually refers to a fixed DC voltage or current applied to a terminal of an electronic component such as a diode, transistor or vacuum tube in a circuit in which AC signals are also present, in order to establish proper operating conditions for the component.

What is biasing in simple words?

Bias is a tendency to prefer one person or thing to another, and to favour that person or thing. ... To bias someone means to influence them in favour of a particular choice.

What is biasing and why it is needed?

Biasing is the process of providing DC voltage which helps in the functioning of the circuit. A transistor is based in order to make the emitter base junction forward biased and collector base junction reverse biased, so that it maintains in active region, to work as an amplifier.