Part One discusses the designs goals of the Universal Serial Bus (USB) that
emerged from the acknowledged shortcomings of the original PC’s implementation
of peripheral device expansion. It also introduces the concepts of USB
including the hardware and software elements required for its operation, and
the support for low-, full-speed, and high-speed devices. Next, it discusses
some of the USB features that are common to all device speeds, such as cable
connector and bus power. The chapters included in Part One are:
