How does a receptor bring information from the environment into an information processor?

In the context of information processing, a receptor serves as an input mechanism designed to receive stimuli or symbolic expressions from the external environment for manipulation by a processor.1

The process of bringing information into an information processor varies depending on whether the system is biological or artificial:

• Biological Systems: Receptors act as biological transducers that convert energy from the environment—such as light, sound, or pressure—into electrical impulses. These impulses are then transmitted to the central nervous system via afferent nerve fibers for further processing.2
• Artificial Systems: In computer science and human-machine interfaces, receptors (often referred to as input devices or sensors) capture data through various methods. This can involve manual entry via keyboards or pointing devices, or automatic capture using digital scanners, digital cameras, or transducers that convert physical phenomena like temperature or vibration into electrical signals.1345

Ultimately, these mechanisms ensure that environmental data is translated into a format—such as a stream of bits or electrical impulses—that the processor can recognize, store, and manipulate.41