14. An interactive terminal, for communication with external data processing means, comprising: A. an alpha-numeric display for visually presenting data received and transmitted; B. a data memory communicating with said display for storage of at least a portion of information received; C. an information entry keyboard operable by the user's first hand wherein each of a plurality of said keys represents the transmission of "n" different information levels, "n" being an integer greater than one; D. at least "n-1" shift level control keys simultaneously operable by the user's second hand for selecting the desired information level for transmission of all "n" information levels; E. information transmission means communicating with said keyboard and said shift level control keys for transmitting selected keyboard information to at least said external data processing means; F. information receiving means communicating with said external data processing means and said data memory for receiving of information; G. scroll switching means communicating with said memory for presenting on said display data held in said memory; H. a housing having: 1. a front face dimensioned for mounting said display and said information entry keyboard, 2. a first side dimensioned for mounting said shift level control keys so as to be operable by the fingers of the user's second hand, 3. a second side dimensioned for mounting said scroll switching means so as to be operable by the thumb of the user's second hand, and 4. an interior space dimensioned for containing said data memory, information transmission means, and information receiving means; whereby the fingers of the user's second hand select desired shift level control keys and the user's first hand selects desired keys of the information keyboard and the thumb of the user's second hand operates the scroll switching means.
14. An interactive terminal, for communication with external data processing means, comprising: A. an alpha-numeric display for visually presenting data received and transmitted; B. a data memory communicating with said display for storage of at least a portion of information received; C. an information entry keyboard operable by the user's first hand wherein each of a plurality of said keys represents the transmission of "n" different information levels, "n" being an integer greater than one; D. at least "n-1" shift level control keys simultaneously operable by the user's second hand for selecting the desired information level for transmission of all "n" information levels; E. information transmission means communicating with said keyboard and said shift level control keys for transmitting selected keyboard information to at least said external data processing means; F. information receiving means communicating with said external data processing means and said data memory for receiving of information; G. scroll switching means communicating with said memory for presenting on said display data held in said memory; H. a housing having: 1. a front face dimensioned for mounting said display and said information entry keyboard, 2. a first side dimensioned for mounting said shift level control keys so as to be operable by the fingers of the user's second hand, 3. a second side dimensioned for mounting said scroll switching means so as to be operable by the thumb of the user's second hand, and 4. an interior space dimensioned for containing said data memory, information transmission means, and information receiving means; whereby the fingers of the user's second hand select desired shift level control keys and the user's first hand selects desired keys of the information keyboard and the thumb of the user's second hand operates the scroll switching means. 17. An interactive terminal as defined in claim 14, wherein said display comprises a first row of indicia generating matrices for displaying currently desired information, and a second row of indicia generating matrices positioned directly above said first row, for displaying the next preceding currently desired information.