Well, looks like my thread really struck a chord here.
I also had my own software company in the 80's. We did very well. We specialized in Commodore products. We were mail order, internationally, and also went into labs throughout Michigan, aligning disk drives, etc. Good old days. My best years were when Commodore phased out. I worked the business from my basement and we were pretty much the only Commodore game around. School systems were not quick to change. I also sold a number of programs I wrote, through the company.
I let my business die out intentionally, as I had no time for family. I would come home from my regualar job at 4:30 PM and race down to the basement to put orders in to my distributors before they closed for the day. I also had stock that came in that needed to be packaged and shipped out, and then there were invoices. I would come up for air at 9:30 PM. When I started missing a lot of stuff related to the kids growing up, I made the decision that we could do without the business. It was great, but its time had come...and gone. But it was a great experience and a great business-learning experience. A lot of the lessons I learned in business/economics became a reality with my business. For example, supply/demand/pricing. I had to do a ot of guesswork because it took time to get the catalog printed and mailed out. If I guessed right (say a good price on diskettes) I would reap the benefits...and the reverse!
Anyway, it is essential for work for me to have a computer.
But I could go a few weeks without on that score. But, as David said, it is most definitely an addiction (I also need it for poker, but that's for a different newsgroup!).
I've also noticed a big change with my University students. It used to be when the class ended, the students would stream out and actually TALK to each other and socialize. Now, en masse, they look like zombies, taking out their cell phones (or whatever) and ignoring everything else.
Mel