I understand why you might argue that, but I've been surprised in the past by people who were fairly-well-versed on computers (no pun intended), but still called hard drive space "memory".
I should go listen to that section of the song again (like I said elsewhere, it isn't one of my favorites of his). By intentional absurdity, I meant that I could see Al intending this to be a case of bragging in an absurd way "Defraggin' my hard drive for thrills, I got me a hundred gigabytes of RAM".
But now that I noticed the "I" in the middle there (I had missed it before), I'm guessing I was wrong in thinking the lines could be cause-and-effect (which would be the source of the absurdity).