Here are some basic descriptions of what may happen if airplanes had different operating systems running them.
DOS: Everybody pushes it till it glides, then jumps on and lets it coast till it skids, then jumps off, pushes, jumps back on, etc.
DOS with QEMM: Same as DOS, but with more leg room for pushing.
Macintosh: All the flight attendants, captains and baggage
handlers look the same, act the same and talk the same. Every time you
ask a question, you are told you don't need to know, don't want to know
and everything will be done for you without your knowing, so just shut
up.
OS/2: To get on board, you have to have your ticket stamped 10
different times by standing in 10 different lines. Then you fill out a
form asking how you want your seating arranged--with the look and feel
of an ocean liner, a passenger train or a bus. If you get on board and
off the ground, you will have a wonderful trip, except when the rudder
and flaps freeze, in which case you have time to say your prayers before
you crash.