Does the Inspiron 600m have an Intel Pentium III or IV? Where do I look on my computer to find out?

 

What I CAN find is:

 

Dell Inspiron 600m

Intel (R) Pentium (R) M processor

 

but I don't know if that's comparable to a Pentium III or IV or if it's a version before the III.

 

It's a simple answer but I don't know where to get it!