Trivia: I worked for the Associated Press back in the days of teletype machines. When the technicians wanted make sure the machines were fully functional, they'd issue a command called FOX. It caused the following printout containing all letters of the alphabet:
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG. THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.
This would continue until a STOP FOX command was entered.
