Comment on I'm sure it'll be fine!
FrChazzz@lemmus.org 3 weeks agoI was always told it had to do with how long it took to get things approved. I remember when it was a big deal that the space shuttles were upgraded to 486s… in 2002.
Comment on I'm sure it'll be fine!
FrChazzz@lemmus.org 3 weeks agoI was always told it had to do with how long it took to get things approved. I remember when it was a big deal that the space shuttles were upgraded to 486s… in 2002.
lime@feddit.nu 3 weeks ago
it’s also because the smaller a transistor is, the more sensitive it is to cosmic rays. and there are a lot more cosmic rays in space than on earth. you can “rad-harden” them, but there are physical limits. as a result the most popular cpu architecture in space is the RAD750, based on the PowerPC 750. the perseverance rover and the james webb space telescope are basically underclocked gamecubes.