Etymology
The word "feedback" was first used in the early 1900s by engineers. It is a combination of the words "feed" and "back", and refers to the process of feeding back a portion of the output of a system into the input.
Meaning
Feedback is a form of information exchange in which an individual or group receives information about their performance or behavior, and uses that information to make adjustments. Feedback can be positive or negative, and it can be given by a variety of sources, such as teachers, supervisors, peers, or customers.
Origin
The concept of feedback has been around for centuries. However, the term "feedback" was first used in the early 1900s by engineers. In 1927, Harold Black, an engineer at Bell Labs, invented the negative feedback amplifier. This amplifier used a portion of the output signal to reduce the input signal, which resulted in a more stable and efficient amplifier.
Black's invention was a major breakthrough in electronics, and it很快 became known as "feedback." The term has since been adopted by a variety of other fields, including psychology, education, and management.
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