None of those companies have gone bust though. RCA got purchased and integrated by/into GE, Kodak filed bankruptcy but still exists with a significant number of employees, Tektronix is currently a fortune 500 company, Novell is now owned by Micro Focus, Lotus was never that big of a company, but they still exist and are doing pretty poor but still sell cars, AOL still exists and is owned by Yahoo, MySpace still exists and is owned by an advertising company and the other 2 or 3 I've never heard of.