I'm not sure you can credit any one person with inventing the personal computer. Should we track down who first had the idea of a personal computer? Would that be a science fiction writer or futurist? Or would you want to find someone who envisioned something that could actually be made at the time it was dreamed up?
Do you select people who became rich and famous early on in the personal computer era? Steve and Steve or maybe Bill?
No matter what your own view a strong case is made by Ian Matthews for choosing Chuck Peddle as the inventor of the personal computer.
If you're asking yourself "Chuck who?" and you know a little of the history of personal computers than I can give you a quick answer. Chuck Peddle designed the 6502 microprocessor. That is only the beginning. Ian does a marvelous job building his case.
I am left with another question though. How many other relatively unknown people have changed the world of computers, or our world in general, and not received the credit due to them?