The pun about "Area 5150" is int includes "area 51" (a US military base where, besides new weapons testing, according to conspiracy theories, aliens may also be investigated or kept - https://en.wikipedia.org/wiki/Area_51) and "IBM 5150" combined.

The pun about "8088 MPH" is the "Intel 8088" was used an "MPH" obviously stands for "miles per hour", a rather fast pace.

In some sense, the audience for these demos is small, because to be truly appreciative of the technical skill of the demo coders, you probably should have programmed the IBM PC (and its various graphics modes) in assembler.