William, I was always under the impression that STD was the accronym for Sexually Transmitted Disease This probably has little to do with computer bus systems. Although it might liven up your report a bit. If you have access to an internet web browser, there a few sites which act as acronym databases. I searched for the word 'Acronym' and found about 60 sites. One I looked at was 'http://www.mtnds.com/af/' it returned about 30 entries for 'STD'. But my personal favourite was Sacrae Theologiane Doctor (Doctor of sacred theology) Good luck. Mike Fitzgerald Production Engineering Mobile Radio Division Tait Electronics Ltd. ------------------------------------------------------ 558 Wairakei Road, PO Box 1645 Christchurch, New Zealand. Direct Phone: (64)(3) 358 6663 Fax: (64)(3) 358 3603 Mobile: (025) 228 7068 Email: [log in to unmask] Internet: http://www.tait.co.nz ------------------------------------------------------ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################