USB 2.0: Compliance and beyond
The Universal Serial Bus (USB), introduced to computers in 1995, now appears in all PCs and in many peripherals. Yet, the bus's 12-Mbit/s speed has limited its usefulness for products such as video cameras and DVD players. Some manufacturers have tried to meet high-speed requirements by employing the IEEE 1394 serial bus, but the USB 2.

Tools manage PCB design and test
Improve testability of opto PCBs
Guidelines facilitate load-board design
Machine-Vision & Inspection Test Report