Another 50-year gap: 1934: IBM 405, 150 cards/minute, rented by businesses at $1000/mo (USD 23K/mo in 2024) http://www.righto.com/2017/11/identifying-early-ib

Another 50-year gap: 1934: IBM 405, 150 cards/minute, rented by businesses at $1000/mo (USD 23K/mo in 2024) http://www.righto.com/2017/11/identifying-early-ibm-computer-in.html http://www.righto.com/2017/11/identifying-early-ibm-computer... 1984: Apple Macintosh, 6 MHz, bought by individuals at $2500 (USD 7,4K in 2024) https://support.apple.com/kb/sp186 https://support.apple.com/kb/sp186 (and for that matter, 50 years in aerospace is the difference between https://www.kshs.org/index.php?url=km/items/view/210706 https://www.kshs.org/index.php?url=km/items/view/210706 and https://starchild.gsfc.nasa.gov/docs/StarChild/space_level2/vostok1.html https://starchild.gsfc.nasa.gov/docs/StarChild/space_level2/... )