What means BBS ?

There are too many things about the creators of BBS , there are too many things about how and why its was created.

The reason around why the animal that represents BBS is an octopus related to the multitasking and kraken's legend is understable, but one of the things that i did not know and just come to my mind now is that i do not know the meaning of BBS, i always asumed that its a acronym, but of what ?

It does not come any special  idea about what it could be, and its natural for me to thing in this network as just their own way '' BBS'' but what it means for you ?

Pierrot.