Yeah, I would say pet as in dog as well. Will Wheaton however, apparently disagrees and uses the acronym version while reading the audiobook version of "Ready Player One'
It kinda stood out like a sore thumb to me, really grinding on my ears, but I wondered if I was the one who had been pronouncing it wrong all these years.
I never used a commodore pet myself, but I did enjoy the Sharp MZ80K which appears to be very similar to the pet
