posted by Alicia on .
What ways do software designers enable users to enter commands into computers?
Sound (particular words), keys, numbers, text written into cells, light pens, and keywords (such as sin or tangent). There really is no limit to the ways it can be done. I just thought of others....my computer can take either digital or analog signals in at the serial or other ports (like mouse or joystick commands).
how to type very good?