Introduction  In the digital age, data drives everything — from healthcare to automobiles, from industrial machines to space exploration. One technology that plays a vital role in collecting and transmitting this data is telemetry meaning . Whether you realize it or not, telemetry systems are all around us — in your smartphone, your car, and even in satellites orbiting the Earth. But what exactly does telemetry  mean? How does it work, and why is it so important in today’s co