Input (Data) refers to the information that is fed into a system for processing. This can include numbers, text, images, or any other type of information that can be analyzed or manipulated. In computing, input is essential for tasks such as calculations, data analysis, and decision-making. In the context of computers, input can come from various sources, including keyboards, mice, sensors, and microphones. The quality and accuracy of the input data significantly affect the output results, making it crucial to ensure that the data collected is reliable and relevant for the intended purpose.