The L.A. Times reports the space shuttles are so old that replacement parts are difficult to find, that engineers sometimes use eBay to find them, and that the computer processors used is the Intel 8086.
The 8086 is the processor used in the original PC back in 1981. I believe it is 4.7 megahertz. Contrast that with today’s chips which are approaching 3 gigahertz.
I find it upsetting and bizarre that such obsolete equipment is still being used.