Quoted from OLDPINGUY:When I go to check my car today for repair, they still use a DOS program, and I can see a bit of me in there. At that time, when it migrated to PC Cobol, Wordstar, DbaseI and II, Clipper, standards for F1-10 were not yet normalized, nor was standards for indexing.
I added a persons pic to a database file, which had not yet been done for early 8088 PCs, and Sold that to Wang and IBM, I gave it to Microsoft, as Bill Gates was kind enough to write letters with me and our school Beta tested really early protos for Windows. Xtree was the DOS shell used then.
Yes, the IBM AS/400 system. We still use it at my day job, and I work for a large corporation with over 10k employees! That IBM system is unbreakable. I see it still used all over the place. If it ain't broke, don't fix it.