https://dfarq.homeip.net/ti-99-4a-discontinued-october-28-1983/?utm_source=rss&utm_medium=rss&utm_campaign=ti-99-4a-discontinued-october-28-1983 David L. Farquhar on technology old and new, computer security, and more Wed, 28 Oct 2026 11:07:13 +0000 hourly 1