PSP Glossary word help!!!

Hi guys, I just want to know sum of the words that experienced ppl use in this forum, below are the words i want to know the definitions of plz. Thankyou ( im a newb btw)

Firmware:-
Homebrew:-
Downgrade:-
ISO/CSO:-

tahst all for know thanz guyz

[DarkPacMan77]

firmware - the "system software" version of the psp. You can see this by looking in settings - psp settings - system information.

homebrew - homemade programs/ applications used on the psp

downgrade - there are different downgraders that will allow you to use version 1.50. This will enable homebrew as well.

iso/cso - these are file extensions for psp game files.

-DarkPacMan77-

[DarkPacMan77]

This person has firmware 3.30 also, so I'll let you teach him the ropes asddasit

-DarkPacMan77-