▲ 731 ▼ Artemis II Astronauts Have ‘Two Microsoft Outlooks’ and Neither Work (www.404media.co) submitted 5 months ago by shish_mish@lemmy.world to c/technology@lemmy.world 150 comments fedilink hide all child comments
[–] vithigar@lemmy.ca 6 points 4 months ago (2 children) ...how does 36KB RAM and 72KB ROM give you a total of 64KB? permalink fedilink source parent hideshow 4 child comments replies: [–] Michal@programming.dev 15 points 4 months ago* Space dilation. permalink fedilink source parent [–] captain_aggravated@sh.itjust.works 7 points 4 months ago The AGC had 2048 words of erasable core storage, what we'd now call RAM, and 36,864 words of read only core rope memory. So a total of 38,912 words. Each word is 15 bits plus a parity bit, so that'd work out to 75,776 bytes or 72,168 bytes depending on whether you count parity or not, and then kilobytes, kibibytes...it's closer to 64k than 32 or 128. permalink fedilink source parent
[–] captain_aggravated@sh.itjust.works 7 points 4 months ago The AGC had 2048 words of erasable core storage, what we'd now call RAM, and 36,864 words of read only core rope memory. So a total of 38,912 words. Each word is 15 bits plus a parity bit, so that'd work out to 75,776 bytes or 72,168 bytes depending on whether you count parity or not, and then kilobytes, kibibytes...it's closer to 64k than 32 or 128. permalink fedilink source parent