A logic circuit performs "processing and controlling" functions.
A logic circuit is an electronic circuit that performs a specific logical operation, which is based on the principles of Boolean algebra. It takes one or more digital inputs and produces a digital output based on a set of rules, known as a truth table.
The primary function of a logic circuit is to process and control the input signals to produce a desired output signal. In other words, it performs logical operations on the input signals to generate the desired output signal. This makes it a processing and controlling device.
For example, a logic circuit can be used to perform a simple logic function, such as a logical AND operation, which takes two input signals and produces an output signal that is true only when both input signals are true. This output signal can then be used to control the behavior of another device or system.
In summary, logic circuits are used in a wide variety of electronic devices, such as computers, calculators, and mobile phones, to process and control digital signals, which makes them an essential component of digital technology.