Special gaming keyboards include a variety of useful functions that you simply gained’t discover on a traditional keyboard corresponding to programmable buttons, backlit keys and mechanical switches. Some low-quality keyboards also suffer problems with rollover (that’s, when a number of keys pressed at the same time, or when keys are pressed so fast that multiple keys are down inside the identical milliseconds). Early “stable-state” keyswitch keyboards did not have this drawback because the keyswitches are electrically isolated from one another, and early “direct-contact” keyswitch keyboards averted this drawback by having isolation diodes for each keyswitch. These early keyboards had “n-key” rollover, which suggests any variety of keys could be depressed and the keyboard will nonetheless acknowledge the next key depressed.
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