How do i know if my PSP is 1000 or 2000 model?

Question

How do i know if my PSP is 1000 or 2000 model?

Answer 1

On the bottom narrow part there is a bar code with letters and numbers underneath it.  The last four numbers will either be start with 100_ or 200_.  My last four are 2001, therefore it's 2000 series (my old one, which died a terrible death being dropped off a 2nd story balcony, ended with 1001 and was a 1000 model).  I'm not sure if the last number is always a 1, hence the _ as the last numbers in my example.