Hello, can someone please explain how data transferred by wire or even airwaves work at all??? I know this isn’t some kind of magic, there’s frequencies and all and just bits of 1’s or 0’s firing here and there or something, but I wanted to understand the concept or the mechanism behind it how it all adds up, like how those signals make up the voice you recorded and uploaded in the internet actually become a voice that you can hear on the receiving end or some kind for example a radio receiver. And also I’m also fascinated about the optic fiber cable that uses light to produce stuff like audio as well.
TLDR:
– Airwaves how they travel through the air (I know there’s oscillators and all that crazy stuff but how tf)
– How those 1’s and 0’s work specifically in wires
– Optic fiber cables using lightwaves
Please someone eli5 me everything that is written in this. Very much appreciated.
Comments
Imagine your voice or a picture as a set of tiny on and off switches labeled 1s and 0s. These switches are flipped very fast to represent the sounds or images you want to send. When using a wire, electricity moves through the cable in a pattern that reflects those 1s and 0s. Once the signals arrive at the other end, a device reads them and rebuilds your original voice or picture.
When signals travel through the air, they use invisible waves called radio waves. Your device encodes the 1s and 0s into these waves, then sends them out so they can be picked up by a receiver. That receiver decodes the waves back into the 1s and 0s, and your device reassembles the information into sound or video.
Fiber optic cables replace electricity with light. Instead of sending electrical pulses, they send rapid flashes of light that bounce along inside thin glass fibers. A detector at the other end turns these light flashes back into electrical signals, allowing your computer or phone to process and play them.
All these systems share the same concept. Your message is broken into simple on and off signals. Those signals travel through different pathways—electric wires, radio waves, or light beams—and then get turned back into whatever you sent, whether it is a voice recording, a picture, or a video.