What does co-op mode mean?

I see peeps referring to coop mode when discussing games. What is that? How is it different than multiplayer? Can somebody help me out here, Thanks

XP 2000+
MSI KT3 ULTRA-2 KT333
Maxtor 60GB ATA 133 7200RPM
512MB PC2700
ABIT G4 Ti4200 OTES 64MB
Win98SE

Co-op, short for cooperation. Two (or more) people working together not against each other. Unless, of course, you mean coop mode where everyone looks like a chicken and hangs out in the same area.

Co-operative IS multiplayer. Just like DM, Capture the Flag, etc. are multiplayer. The difference is that you are working together on the same team to achieve a common goal instead of fighting against each other. It can be done over LAN or the internet... just like any other multiplayer... provided the game supports it.

I don't know if you remember the game Commandos: Behind Enemy Lines... but that game is an excellent example of co-operative multiplayer over the internet.

<font color=red> If you design software that is fool-proof, only a fool will want to use it. </font color=red>

Well, in BF 1942 I think CO-OP means computer opponents. When in co-op mode you can have bots and real players at same time. Correct me if i'm wrong or if this is not what your asking.