The Universal Serial Bus (USB) is a standard for connecting devices to computers and other electronics. It allows for data transfer and power supply between devices, such as computers, printers, and smartphones. USB ports are commonly found on many devices, making it easy to connect peripherals and charge gadgets. USB has evolved over the years, with different versions like USB 2.0, USB 3.0, and USB-C. Each version offers improvements in speed and functionality. The versatility of USB has made it a popular choice for both personal and professional use, simplifying the way we connect and power our devices.