It is an event, not an interrupt. sh At 06:26 PM 2/11/01 -0500, you wrote: >When a job goes fom Job Scheduler to Process Scheduler, to my knowledge, no >event is generated. > > >Chad Waldman wrote: > > > So, you are saying that C should be put on the ready queue before A is > > put back on? This means the external event arrives before the internal > > event gets finished processing (What I mean by finished processing is > > its placement back on the ready queue). This breaks the rule of internal > > event first. It also unfortunately breaks my program. > > > > Chad > > > > ----- Original Message ----- > > From: "sallie henry (Sallie Henry)" > > To: > > Sent: Sunday, February 11, 2001 2:25 PM > > Subject: question > > > > > If processes A and B are on the ready queue (A is running), and C > > arrives > > > (external event causing A to be interrupted before the end of its > > > timeslice). After processing, the ready queue looks like: > > > > > > B C A (with B running). > > > > > > sh > > >