Signal

A signal is any form of information transmitted from one point to another, such as sound, light, or electronic data. It can be tangible, like a radio wave delivering music, or digital, like the data sent from your phone to the internet. Signals carry encoded information, allowing devices and systems to communicate and work together. They can be continuous, like a steady tone, or discrete, like digital bits of 1s and 0s. Effective signal transmission involves encoding, transmitting, and decoding information accurately, making communication efficient and reliable across various technologies.