ELI5: Explain Like I'm 5

ARINC 653

Arinc 653 is like a special rulebook for airplanes to make sure that all the computer programs on the plane are organized and working together properly. Imagine you are making a big tower out of blocks with your friends, but you all need to follow some rules to make sure it stays stable. That's what Arinc 653 does for the computer programs on a plane.

Each program on the plane has its own special place to sit and work, kind of like everyone having their own seat at a dinner table. They're not allowed to bother the other programs or use too much of the airplane's resources (like memory or processing power) without asking nicely first.

Arinc 653 also helps airplane manufacturers test and check their programs before they're put on a real plane, to make sure everything is working like it should. So just like you might practice building your block tower before trying to make a tall one, airplane makers can practice their computer programs before they let them fly in the sky.

Overall, Arinc 653 helps keep the programs on an airplane organized, polite, and safe, just like you and your friends building a block tower.