[zizozac]

As many said on this thread ; Bios is the basic input output system chip that is used to detect ps2 or any type of system hardware components; it is the first chip the system detect and i add for that without Bios you will not able to run ps2 commercial games cause most of games has something called custom modules that depends in its work to sub routines which is placed inside bios so those modules will not load if those routines (instructions) are not found and if you run agame without bios you will see that most of games will stops at loading those modules ;i don,t know lot of information about hardware specification cause i didn,t care for that trend too much