Back in the mid-80s, I got a disk of freeware games that included a text adventure whose file name, I'm pretty sure, was Atariadv. I'm even pretty sure the game was called Atari Adventure.
The premise is you got sucked into your Atari and got to wander among the components and peripherals. At one point, you encountered POKEY "playing his little heart out." You got attacked by a "mad pixel."
It was very evocative. I cannot, for the life of me, find it though! Not on my disks nor online. Does it ring any bells for you?