"If Operating Systems Were Airlines" joke

DOS Air: Passengers walk out onto the runway, grab hold of the plane,
push it until it gets in the air, hop on, then jump off when it hits
the ground. They grab the plane again, push it back into the air, hop
on, jump off...
Mac Airways: The cashiers, flight attendants, and pilots all look the
same, talk the same, and act the same. When you ask them questions
about the flight, they reply that you don't want to know, don't need
to know, and would you please return to your seat and watch the movie.
Windows Airlines: The terminal is neat and clean, the attendants
couteous, the pilots capable. The fleet of Lear jets the carrier
operates is immense. Your jet takes off without a hitch, pushes above
the clouds and, at 20,000 feet, explodes without warning.
OS/2 Skyways: The terminal is almost empty - only a few prospective
passengers mill about. The announcer says that a flight has just
departed, although no planes appear to be on the runway. Airline
personnel apologize profusely to customers in hushed voices, pointing
from time to time to the sleek, powerful jets outside. They tell each
passenger how great the flight will be on these new jets and how much
safer it will be than Windows Airlines, but they will have to wait a
little longer for the technicians to finish the flight systems. Maybe
until mid-1995. Maybe longer.
Fly Windows NT: Passengers carry their seats out onto the tarmac and
place them in the outline of a plane. They sit down, flap their arms,
and make jet swooshing sounds as if they are flying.
Unix Express: Passengers bring a piece of the airplane and a box of
tools with them to the airport. They gather on the tarmac, arguing
about what kind of plane they want to build. The passengers split into
groups and build several different aircraft but give them all the same
name. Only some passengers reach their destinations, but _all_ of them
believe they arrived.