Redundancy check

Okay, let's pretend you and your friend are playing a game of checkers. Before you start playing, you count all the pieces to make sure there are 24 checkers in total. This is like a redundancy check. It's a way of making sure that everything is there and nothing is missing.

Now, let's say during the game, your friend accidentally knocks over one of the checkers and it rolls under the table. You count the checkers again and notice there are only 23. This means that one is missing, so you can go look for it or ask your friend if they accidentally put it away.

In computer terms, a redundancy check works the same way. When data is sent from one computer to another, it's important to make sure that nothing gets lost or corrupted during the transfer. So, a "check" is performed to make sure that all the bits of data are there and in the right order.

This is like checking that all the checkers are on the board and in the right places before starting the game. If something is missing or out of place, the computer can try to fix it or request that the missing piece be sent again.

So, a redundancy check is like a safety measure to make sure that important information is not lost during transmission.