Peter Relson's point is an important one. In my experience almost no one confuses a task with a TCB, but the ambiguous use of SRB is common. People talk, for example, of "scheduling an SRB", but never of "despatching a TCB".
It is probably too late; but it would have been useful to make a systematic distinction between a Service or a Service Request and a Service Request Block, SRB, its associated control block. Going forward, it would be helpful if the language of IBM publications made this elementary distinction in some consistent way judged appropriate. John Gilmore, Ashland, MA 01721 - USA ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html