I don't know if that is true. I mean, it was true eventually, but in the beginning, it was quite limited to only well capitalized businesses.
I mean even in the "ubiquitous" period, it wasn't that accessible. In 1984, and IBM PC cost about $5,000 (in 1984 dollars). That would be about $12,300 in today's dollars. Not out of reach for all, but certainly only for the upper-middle-class at best.