ELI5: Explain Like I'm 5

Atomic operation

An atomic operation is like a mommy and daddy button that always remains together. When mommy and daddy need to press the button, they put their hands together, press the button at the same time and let go at the same time. This way, the button always gets pressed or released completely without any interruptions, and nobody else can touch it until mommy and daddy are done.

Similarly, in computer programming, an atomic operation is like a set of instructions that are always executed together and are not interrupted by any other operation. These operations are very important when multiple processes or threads are running at the same time because they prevent other processes or threads from interfering with the operation. It's like mommy and daddy pressing the button together keeping other hands away from the button until they are done with it.

So basically, atomic operations make sure that the code runs smoothly without any interruption, just like how mommy and daddy can press the button together smoothly without any interruption.