+1 also, I too came through that period, and it was a tricky time, but it was an exciting time as there were many different kinds of computers, and every advanc

+1 also, I too came through that period, and it was a tricky time, but it was an exciting time as there were many different kinds of computers, and every advance was exciting, knowledge was hard to come by and we heavily relied on books and magazines and other people to find out things. If you went from one computer system to another, was only a slim chance you could do anything unless you had a manual or something to refer to.