What is the difference between threaded forks and threadless forks???

[Coopsdaddy]

I'm getting a new fork for my mgp team edition scooter and cant tell what fork to get and why? what is threadless fork and whats a threaded fork? which is better and why?

 

[Rob.]

...Really?
one has threads
one doesn't.

one is stronger
one isn't.

threadless is better
requires compression system
search please...