(2) Fri Dec 12 2008 01:05 Roy Richardson's Computer Buttons:
I spent the evening taking pictures of and writing descriptions of the buttons my father got at computer trade shows in the early 1980s. Check them out for a glimpse of a time when you could advertise mainframe software with the slogan "Do It With Frequency." I've mentioned these before, but now they're available for your perusal, with explanations of what software packages they're advertising.