USB stands for ''Universal Serial Bus'' . See http://www.usb.org/ for information about USB. [Tom Wilkason] seems to be successful teaching Tcl to send data through USB ports [http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&frame=left&th=4c4d9f85e60487fa]. ---- See also [Serial Port] for an opportunity to access USB via a virtual com port driver. -- [RJM] ---- [Category Glossary]