Suppose a keyboard has a 6-key rollover (6KRO), then six keys can be pressed simultaneously for the input. Some cheaper keyboards have 3-key rollover (3KRO) also. Pressing several keys at the same ...

When it comes to rendering text input into an electronic form,the newest keyboards use USB for wired interfacing, while the oldest Morse keys use a single conductor. Shall the two ever meet? For ...