Back in the day, I ran a public access BBS on my A2000 030/40. Started with a 2400 baud modem and then 14.4... followed by 56k. Other than the occasional power outage, the machine was on 24 x 7 for about 7 years. I used that same machine for my own use as well so it was rebooted once in a while, maybe once every 3 or 4 months but it was never shut off.
