USB
USB (Universal Serial Bus) is a standardized protocol for connecting peripherals to computers and other electronic 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, mice, storage drives, and smartphones. The protocol has evolved through versions (e.g., USB 2.0, USB 3.0, USB-C) to increase speed, power output, and functionality.
Developers should learn USB when working on hardware integration, embedded systems, or device drivers, as it's essential for connecting and communicating with peripherals in consumer electronics, IoT, and industrial applications. It's crucial for projects involving data acquisition, firmware updates, or custom hardware interfaces, such as in robotics, medical devices, or automotive systems, where reliable and standardized connectivity is required.