If you've ever wanted to make a computer program, but always thought it's too complicated to set up the tools and environments that you would need, this might be for you.
Do you like games ? -Most people do; especially programmers.
So if you are not going to set up a toolchain, and you don't need special hardware - what do you need ?
The answer is simple. Click the following link, and start learning: Light Bot.
Once completed, try again, this time you should try and make your programs as short as possible.
And finally, try again, making your program as quick as possible.
When you've exhausted the tutorial, you can proceed the same way on Light Bot 2 (to play a level, click the small white square).
How does this relate to ARM ?
On Light Bot's home page, you can download other versions for your particular device.