undefined | Better HN

0 pointsSharlin7y ago0 comments

Yep, the original main computer was a 1.25 MHz (!) DF-224 [1]. It was augmented on Servicing Mission 1 in 1993 with a 15 Mhz 80386 co-processor [2]. The 80486 was installed in 1999 on Servicing Mission 3A (STS-103) [2].

[1] https://en.wikipedia.org/wiki/DF-224

[2] https://en.wikipedia.org/wiki/STS-61

[3] https://en.wikipedia.org/wiki/STS-103

0 comments

1 comments · 1 top-level

ams61107y ago

Reading more about the DF-224...

It was roughly 45 centimeters (1.48 ft) by 45 centimeters (1.48 ft) by 30 centimeters (0.98 ft), weighed 50 kilograms (110 lb)

It had about 96KB of usable plated-wire memory (32K 24-bit words).

That seems like a lot of weight. I wonder how much was radiation shielding?

j / k navigate · click thread line to collapse