- Vacuum tubes
- Wire wraping
- Core rope memory and some magnetic core memory.
Where it gets even more interesting is when you NEED craft for advancement. The most entertaining case I can think of is this one: http://www.smithsonianmag.com/history/neil-armstrongs-spaces...
http://www.thecredits.org/2013/09/bras-in-space-the-incredib...
- Vacuum tubes
- Wire wraping
- Core rope memory and some magnetic core memory.
Where it gets even more interesting is when you NEED craft for advancement. The most entertaining case I can think of is this one: http://www.smithsonianmag.com/history/neil-armstrongs-spaces...
http://www.thecredits.org/2013/09/bras-in-space-the-incredib...