Computers in Spaceflight: The NASA Experience
Sounds like you've hit the mother lode. Here are a couple links to some historical references on early computers in spaceflight. They're not nearly as detailed as what you describe, but they provide some good hardware descriptions.
Part I: Manned Spaceflight Computers
Part II: Computers on Board Unmanned Spaceflight (through Galileo)
Part III: Ground Based Computers for Space Flight Operations
