Intel and USB

Helping make it easier to connect devices to PCs What is USB? The Universal Serial Bus (USB) is the most successful interface in the history of personal computing. It has migrated heavily into mobile and consumer electronics (CE) segments and also met with great success there. A serial bus standard for connecting external and internal devices to a computer, USB is ...designed to allow many peripherals to be connected using a single standardized interface socket. Intel helped develop the original USB standard and continues to contribute to its advancement. USB improves "plug and play" capabilities by enabling hot swapping — the connection and disconnection of devices without rebooting the computer or turning off the device. Other convenient USB features include: • • • Providing power to low power consumption devices so there's no need for an external power supply or battery charger Allowing devices to charge their batteries over USB Enabling many devices to be used without the installation of manufacturer-specific device drivers Today USB is used to connect a wide range of computer peripherals, such as mice, keyboards, gamepads, cell phones, PDAs, printers, scanners, digital cameras and camcorders, personal media players, flash drives, and external hard drives. For these devices, USB is the most common connection method. As of 2008, there are 6 billion USB products in the install base and the industry is shipping more than 2 billion units per year — and this number continues to grow. The problem In the early 1990s, peripheral devices — such as scanners, printers, and PDAs — each had their own complicated installation procedure. At the same time, because of the power and popularity of the PC, more and more of these peripherals were being created. People needed a faster, easier, less frustrating way to connect these devices without having to add cards to the PC and reboot the system. 1 Industry collaboration Seeing the problem both computer owners and device manufacturers were having because there was no uniform, consistent way to connect to the PC, Intel took action. • Formed the USB Implementers Forum (USB-IF) in 1995 with other industry players to support and accelerate market and consumer adoption of USB-compliant peripherals. Today, USB-IF has more than 800 member companies, and the Board of Directors is comprised of representatives from Hewlett-Packard Company, Intel Corporation, LSI Corporation, Microsoft Corporation, NEC Corporation, and ST-Ericsson. • Contributed technology from Intel Research and Development designed to enable higher speed connections and plug and play simplicity. • Helped develop an open industry specification with a royalty-free intellectual property (IP) licensing obligation. • Encouraged adoption of the specification by implementing it in Intel products (e.g., Intel released chipsets in May 2002 which integrated Hi- Speed USB 2.0 in the I/O Controller Hub, ICH4, and future versions of the I/O Controller Hub). • Aided the rapid introduction of USB 2.0 by developing an Enhanced Host Controller Interface specification (EHCI) at Intel's own expense and made it available to the industry through a royalty-free licensing program. This specification Read the full Intel and USB.

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