This piece is called A Poem for Those Over 30, but I think people under 30 will appreciate the humor, as well. The author is unknown. It starts out:
A computer was something on TV
From a science fiction show of note
A window was something you hated to clean
And ram was the cousin of a goat.
Meg was the name of my girlfriend
And gig was a job for the nights
Now they all mean different things
And that really mega bytes.
You can read the rest of the poem at joke-news.com. One of the lines is a bit off-color, but it’s the best one in my opinion. 😉