USB
USB (Universal Serial Bus) is a standardized protocol for connecting peripherals to computers and other devices, enabling data transfer and power delivery over a single cable. It defines specifications for connectors, cables, communication, and power management, widely used for devices like keyboards, storage drives, and smartphones. The protocol has evolved through versions like USB 2.0, USB 3.x, and USB4, each improving speed and functionality.
Developers should learn USB protocols when working on hardware integration, embedded systems, or device drivers, as it's essential for interfacing with peripherals in consumer electronics and industrial applications. It's crucial for projects involving data acquisition, IoT devices, or custom hardware that requires reliable communication and power supply, such as in robotics or medical equipment.