For over a decade, USB has been the most common standard on computers for connecting peripherals. It has grown from a port found in small numbers on brand-new systems in the late 1990s to the near-universal standard for everything from input devices to data storage, and is even in widespread use for charging mobile phones. Our modern desktops feature between six and twelve USB ports, a testament to their widespread usage. This article is an introduction to the latest version of USB, with information on performance, availability and backward-compatibility.
