Mr. Krabs names it Cashy while he is stuck in the ocean by himself. The Flying Dutchman tater to take it away from Krabs, but the thug war ends in Cashy being lunched into the air. It hits Sandy's heilcopter, causing to hit the Flying Dutchman, knocking him out and later crashing into the Goo Lagoon sands.
Mr. Krabs got it when it was just a little calculator and raised it as if it was his own child . Like Karen Plankton, it was a calculator when it was younger.
Mr. Krabs refers to this technology as an automated money-handling system.
It could be concluded that the register is prohibited to be touched by any non-employee since no one else besides himself, Squidward, or SpongeBob has ever touched it without his worry, as revealed in the "Krusty Krab Training Video."