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The page begins by offering a brief history of USB, highlighting its development and adoption since its introduction in the mid-1990s. It goes on to explain the various versions of USB, including USB 1. x, USB 2. 0, USB 3. x, and USB 4, detailing the improvements and advancements in each iteration. The page further describes the physical aspects of USB, covering the numerous types of USB connectors and cables that have been developed over the years, including USB-A, USB-B, USB-C, and Micro-USB. It also discusses the power delivery capabilities of USB, explaining how the protocol can be used to charge devices. In addition to its technical aspects, the page highlights the widespread use of USB in various industries and applications, such as computer peripherals, mobile devices, audio and video equipment, and automotive technology. It also delves into the advantages of USB, such as its ease of use, plug-and-play functionality, and versatility. The article also tackles the issue of compatibility across different USB versions, detailing the mechanisms and techniques involved in ensuring backward and forward compatibility. It discusses the USB Implementers Forum (USB-IF), the organization responsible for developing and promoting USB standards. Furthermore, the page delves into the various USB protocols, such as USB On-The-Go (OTG) and USB Mass Storage Class (MSC), along with their respective functionalities and applications. It also covers related topics, including USB hubs, USB ports, USB host controllers, and USB drivers. Finally, the page concludes with a section on the security implications and vulnerabilities associated with USB, discussing the potential risks and best practices for securing USB connections. Overall, the Wikipedia page on Universal Serial Bus provides a comprehensive overview of the technology, covering its history, technical aspects, applications, and implications.