For Visicalc, Dan Bricklin has a few blog posts: http://www.bricklin.com/history/intro.htm http://www.bricklin.com/history/intro.htm For Aston-Tate's dBase app

For Visicalc, Dan Bricklin has a few blog posts: http://www.bricklin.com/history/intro.htm http://www.bricklin.com/history/intro.htm For Aston-Tate's dBase app, there's this blog post about its history: https://www.abortretry.fail/p/the-rise-and-fall-of-ashton-tate https://www.abortretry.fail/p/the-rise-and-fall-of-ashton-ta...