Thanks to all who responded, I've got the information I need to continue. Gary "I think it was about 15-20 years ago there was, I believe, a self-study course put out by some company for learning the hardware (and I think some aspects of software, i.e., DOS) of computing at that time. The course came with an 8088 computer that, if I recall correctly, one built and "learned by doing." I'm pretty sure it was not a Heathkit. I have searched everywhere and have not come up with anything. Does this sound familiar to anyone? Any information would be helpful. I'm trying to track one of these courses/computers down. Thanks!" _______________________________________________________________________ Your Site for Swiss Maps: http://www.swissinfo-geo.org/