This is an interesting version of the history of the personal computer, I mostly agree with the story. Calling out the first personal computer is debated, at one time I thought it was the Altair. Silicon Valley was named from the radar industry, many years before the first use in WWII. Secret History of Silicon Valley
BTW, if somebody has data showing that Apple ever had the best selling personal computer please link in the comments. As far as I know only Radio Shack, Commodore, IBM, then various PC makers ever had this record.