Cado sold its C.A.T. (Computer Aided Tutor) system to professionals and small businesses with promise that the computer would teach the customer how to use it. The C.A.T. came with a set of tutorials that the user selected from a menu item. Cado introduced the C.A.T. around 1982.
Cado C.A.T. System 20(Computer-Aided Tutor) (desktop)
Base Configuration: two 5.25-inch floppy disk drives, monochrome monitor, keyboard/keypad, application suite, printer, tutorial software
Important Options: 52MB hard drive