UNIX Airways

Everyone brings one piece of the plane along when they come to the
airport.

They all go out on the runway and put the plane together piece by piece,

arguing nonstop about what kind of plane they are supposed to be
building.

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Air DOS

Everybody pushes the airplane until it glides, then they jump on and let
the plane coast until it hits the ground again. Then they push again, jump
on again, and so on.

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Mac Airlines

All the stewards, captains, baggage handlers, and ticket agents look and
act exactly the same.

Every time you ask questions about details, you are gently but firmly told
that you don't need to know, don't want to know, and everything will be
done for you without your ever having to know, so just shut up.

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Windows Air

The terminal is pretty and colorful, with friendly stewards, easy baggage
check and boarding, and a smooth takeoff. After about 10 minutes in the
air, the plane explodes with no warning whatsoever.

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Windows NT Air

Just like Windows Air, but costs more, uses much bigger planes, and
takes out all the other aircraft within a 40-mile radius when it explodes.

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Linux Air

Disgruntled employees of all the other OS airlines decide to start their
own airline.

They build the planes and ticket counters, and pave the runways
themselves.

They charge a small fee to cover the cost of printing the ticket, but you
can also download and print the ticket yourself. When you board the
plane, you are given a seat, four bolts, a wrench, and a copy of the
seat-HOWTO.html.

Once settled, the fully adjustable seat is very comfortable, the plane
leaves and arrives on time without a single problem, the in-flight meal is
wonderful. You try to tell customers of the other airlines about the great
trip, but all they can say is, "You had to do what with the seat?"