Introduced in 1998 with 4MB and 8MB capacities, the original 2" modules looked like a short stick of chewing gum. Sony also designed Memory Sticks as I/O devices for cameras, GPS and Bluetooth ...
CFW : Custom Firmware. Allows the PSP to perform extra functions. It lets you run homebrew (unsigned code) and PSX/UMD backups from the memory stick. OFW : Official Firmware released by sony. Kernel ...