ELI5: Explain Like I'm 5

One-instruction set computer

Alright kiddo, imagine you have a toy box with all your favorite toys inside. Now let's say you want to play with your toy car. You know exactly what you want to do with it, like driving it around the room and making cool sound effects. But how many steps does it take to do all that? You might think it's going to take a lot of steps to make the car move and sound like the real thing.

Now think about a computer. Just like your toy car, a computer needs lots of steps to get things done. And sometimes a computer might need to do lots of steps just to complete one single task, like opening a program or doing some math.

But what if I told you there are computers out there that only need *one single step* to complete a task? That's what a one-instruction set computer, or OISC, is all about!

An OISC is a really special type of computer that only needs one very simple command to do everything it needs to do. This command is usually something really simple, like "subtract one from memory" or "jump to another part of the program". This might not sound like a lot, but these simple commands are all the computer needs to do everything it's supposed to!

Why would you want a computer that only uses one command, you may ask? Well, kiddo, these types of computers are really good at doing one specific task super-fast, like encoding or decoding data. They're also really good for very simple tasks that require a lot of speed and efficiency, like running a simple calculator or controlling a robot.

So there you have it, kiddo: a one-instruction set computer is a really special computer that only uses one single command to do everything it needs to do! It might not sound like a lot, but it's actually super-fast and efficient!