What is PSP??
-PSP is portable gaming console by Sony. It has 4 versions - The original PSP aka Phat PSP aka PSP 1000, The slim & lite aka PSP 2000, The Brite aka PSP 3000, and PSPGo aka PSP N1000.


PSPGo
What is OFW?
-OFW is the official firmware released by sony. The latest firmware version is 6.20.
What is CFW?
-Custom Firmware(CFW) is firmware released by hackers.It allows the use of homebrew(unofficial applications),PS1 games on psp, PSP UMD backups, plugins,custom themes.