How many keys can be pressed at once

i want to play an online rhythm music game.. which would require the pressing of more than one key at one time.. so I wish to know how many keys can be pressed at once without the computer hanging or the keyboard jamming?
I'm using a Macbook, 2.0ghz, Black with 1 gig ram. Thanks.

By and large the keyboard does what the programmer of the software tells it to do - part of the programming is to address the input/output devices required by the application. By the same token the programmer can't require you to use keystrokes that can't be addressed through the OS involved.
It doesn't make much sense for someone to write software that can't be used.
Regards |:>)
Bob J.

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How many keys can be pressed at once

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