I didn't write any of those 'carols'..they are part of a standard collection which has been circulating for years....I think I just did a search on some phrase.(I actually have a cheap Xerox copy which someone gave me)

You could 'probably' find those, and more, by copying and pasting some distinctive line into Google....

There are whole sites full of technical parodies of various sorts, as well as techie orientied tag lines and computer humor...etc...it's fun looking...