Thread
1993 Buyer's Guide to Upgrades....
This list is not exhaustive, but it is very long, and might help some of us trying to identify old upgrades:
http://www.accessmylibrary.com/article-1G1-13220825/buyers-guide-upgrades-special.html
http://www.accessmylibrary.com/article-1G1-13220825/buyers-guide-upgrades-special.html
Such lists are easily obtained from magazine archives on Nexis. However, they should not be taken too literally. They tend to be aggregations of press releases, and actual products may not have actually shipped in the form described in such lists. I recommend looking for the comparison reviews, which give a better idea of how stuff really worked. Again, though, don't take the articles literally. Often the reviewers received early models (or even "specials") which may have detail differences with what shipped.