A foot operated data input pad has a plurality of foot-operated buttons that may be used to enter data, information, or instructions, including but not limited to numbers, symbols, words, or phrases, separately or in combination. In some embodiments, each button is preferably capable of entering different data values, preferably depending on the length of time that it is pressed or on the number of times that it is pressed in succession. A controller may be included to allow the user to control the computer's pointer, allowing the user to switch between data entry fields. In embodiments wherein a heel rest is provided on the housing of the pad, the rest may optionally serve as both a heel rest and a button/switch for sending an electric/electronic signal. An automated voice system, or other audible and/or visual indicator system, may help the user keep track of the data value as it changes and is entered. In alternative versions for input of instructions, single values, binary information, or for selection of items in a pull-down screen window, a pad may have two foot buttons provided adjacent a cursor controller, wherein the cursor controller and right and left click buttons are on an arc or on an angle so that the foot buttons are rearward on the housing relative to the cursor controller so that pivoting the foot to the right or left on the heel places the toe-end of the foot over each foot button for actuation.