On 10/30/2014 1:07 AM, Cliff Pratt wrote: > I used to work with IBM mainframes back when the dinosaurs were hatchlings. > At one place I worked the machine was powered off on Friday at 5pm and > powered up at 7am on Monday! Can you imagine that these days? > > We soon went to 24x7, but the reason was not because the users wanted it. > It was because the engineers and systems programmers wanted time with no > users. main reason I remember for keeping stuff running was, it was more reliable if the temperature was relatively constant... temperature flucations led to more hardware failures than any other source input variable. -- john r pierce 37N 122W somewhere on the middle of the left coast