[1] (USENET-Jargon) Wait A Second (http://www.ccil.org/jargon/jargon.html)
[2] Signal level behind the Echo Canceller (C/I channel code)
[3] Securities and Exchange Commission - Betreiber einer globalen EDGAR Datenbasis des Internets
[4] Simple Electronic Computer (->"IEEE Standard Dictionary")
[5] Security Screening (CS-1 Service)
[6] Sponsor Executive Committee (IEEE)
[7] Single Error Correction
[8] Sequential Events Controller (->"NASA Acronym List")