Vintage Post-Humans

from Le Voyage dans la lune (A Trip to the Moon), 1902

...I don't know if this technically counts as post-human, but in 1902, the idea of going to the moon seemed less achievable than the idea of cyborgs does to us.

cover of I, Robot by Isaac Asimov first published in 1950

Hal 9000 from 2001: A Space Odyssey, 1968

The Day the Earth Stood Still, 1951