Talk:Comparison of embedded computer systems on board the Mars rovers

Comments
Perhaps it's not entirely clear from the Wind River press release, but while the Pathfinder *lander* ran vxWorks (on an RS6000, a port done for this mission) the Sojourner ran a much smaller system - I don't believe there's ever been an 8-bit vxWorks port in any case, but several references describe it as "simple single-threaded" or "serial", and http://www.acm.org/crossroads/xrds4-3/rover.html specifically says "Sojourner has no on-board operating system".

Two CPUs on Curiosity?
This article states there are 2 CPUs on Curiosity, where one of them is a backup. If you have a link to official source to validate this information, then please correct article and add reference. Thanks. • Sbmeirow  •  Talk  •  18:31, 16 August 2012 (UTC)
 * First of all thanks for that notice. It is good question. I will try to find some offical source.--TuxFighter (talk) 10:13, 18 August 2012 (UTC)

128 MB or 256 MB RAM?
Weird. https://mars.nasa.gov/mars2020/spacecraft/rover/brains/ says Perseverence has 256 MB RAM, but this paper: https://ai.jpl.nasa.gov/public/documents/papers/rabideau_iwpss2017_prototyping.pdf says 128. Which one do we trust?

 ApChrKey    Talk 15:40, 30 July 2020 (UTC)