Specific year? No, I haven't decided settled on a specific year, mainly because each limb/implant/system is going to be a separate piece of medical equipment that has to undergo testing and approval for use, with different development times and release dates. In broad terms, the first practical work was done between 1975 and 1981, and by 1990 there was stuff on the market for commercial use. (And honestly, that might be too quick to pass the reality test. I might revise it.) You'd probably see things like cyberears first -- really, advanced cochlear implants rather than Jaime Summers' ear. Maybe legs, too -- but arms and hands would take longer.
Of course, as I said, that assumes you mean commercial-grade mass-produced full-tech or low-magic magitech cyber. If you just mean one-off-built-in-a-gadgeteer's-garage stuff, hell, you could probably find examples going back to the 1930s, running on anything from lead-acid batteries to diesel. And magical prostheses... well, when did magic start?
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.
Of course, as I said, that assumes you mean commercial-grade mass-produced full-tech or low-magic magitech cyber. If you just mean one-off-built-in-a-gadgeteer's-garage stuff, hell, you could probably find examples going back to the 1930s, running on anything from lead-acid batteries to diesel. And magical prostheses... well, when did magic start?
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.