2009-10-19, 08:43 PM
Many cheap keyboards, especially ones that come with boxed set computers (and unfortunately quite a few laptops) are wired in a way so that only so many keys can be pressed.
I think the default for a high end keyboard is registering 6 different keys before the system beeps.
Now with that said, depending on the type of keyboard you have, some keys are wired on the same what I guess I will call interrupt (probably not the right term, but you'll likely get my point). Cheaper keyboards have the bottom row of keys all mapped to a single hardwire through the communication line. Mine here at work does not have that problem, however both my PC and laptop keyboards at home do, and im guessing so do others who may use SOM.
On cheap keyboards they can press up to 2 keys on a single wire (this is my understanding anyways). So I can press up and left just fine, or up and space just fine, but not up, left and space. Its really quite dumb. If you google for "cant press 3 keys at once" you will tons of post sites about this universal problem and the only definite fix I have found is buying a better keyboard.
I think the default for a high end keyboard is registering 6 different keys before the system beeps.
Now with that said, depending on the type of keyboard you have, some keys are wired on the same what I guess I will call interrupt (probably not the right term, but you'll likely get my point). Cheaper keyboards have the bottom row of keys all mapped to a single hardwire through the communication line. Mine here at work does not have that problem, however both my PC and laptop keyboards at home do, and im guessing so do others who may use SOM.
On cheap keyboards they can press up to 2 keys on a single wire (this is my understanding anyways). So I can press up and left just fine, or up and space just fine, but not up, left and space. Its really quite dumb. If you google for "cant press 3 keys at once" you will tons of post sites about this universal problem and the only definite fix I have found is buying a better keyboard.
- Todd DuFore (DMPDesign)
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