MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -According to Wikipedia, in a feedback loop, the ‘feedback’ occurs when “outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop.”

Detailed explanation-2: -In a positive feedback control system the setpoint and output values are added. In a negative feedback control the setpoint and output values are subtracted. As a rule negative feedback systems are more stable than positive feedback systems.

Detailed explanation-3: -A feedback loop is the part of a system in which some portion (or all) of the system’s output is used as input for future operations. Each feedback loop has a minimum of four stages. During the first stage, input is created. During the second stage, input is captured and stored.

Detailed explanation-4: -A feedback cycle is some cyclic structure of cause and effect that causes some initial change in the system to run through a series of secondary effects, eventually influencing the initial change in some way. There are two major types of feedback cycles or loops. The first is a negative feedback or a balancing loop.

Detailed explanation-5: -Feedback loops start with an input, or a stimulus. This starts or stops the process. As the process continues, the output, or product made, then goes back and controls the beginning of the process. This helps to maintain homeostasis, or balance in the body. Let’s look at an example.