no, but you can play playstation 1 games on a ps2
NO
I have heard from people play station 1 games work in play station 2's aswell. There are very few PS1 games that are compatible with PS2
You can play some playstation one and playstation two games on your playstation three but I am unsure if the original call of duty 2 can be played on a PS3.
Yes
Yes.
This depends on the model of your PlayStation three. Sony has issued out four different models of the PlayStation three, these are; The forty gigabyte, sixty gigabyte, eighty gigabyte and the one hundred and sixty gigabyte. The forty and eighty gigabyte were released first, but the forty gigabyte PlayStation three cannot play PlayStation two games. Any other model can.
sadly not. although playstation 1 games will work on a playstation two console. the playstation two games feature software that the PS1 is not capable of processing rendering them unplayable on older consoles
no the two systems can not play each others games
Yes. There is one for the PlayStation and two for the playstation 2.
Legally, PCSX2 requires you to have a PlayStation 2 for two reasons, one as a license to play PlayStation 2 games, and the other for you to dump the BIOS from, as PCSX2 requires a copy of the PlayStation 2 BIOS. Once you have PCSX2 running, however, there is no technical reason you need a PlayStation 2.
Because you are not playing a game disc
As the PlayStation 3 cannot generate a DHCP server, they cannot be connected directly together. However, both can be connected to a router and work as part of a LAN that way. Some games for the PlayStation 3 support LAN play.