{"type": "article", "title": "The rise and fall of IBM's 4 Pi aerospace computers: an illustrated history", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/the-rise-and-fall-of-ibm-s-4-pi-aerospace-computers-an-illustrated-history", "original_source": "http://www.righto.com/2026/03/ibm-4-pi-computer-history.html", "published": "2026-03-29T16:06:00+00:00", "accessed": "2026-07-08", "id": "the-rise-and-fall-of-ibm-s-4-pi-aerospace-computers-an-illustrated-history"}