16. An input device operated by a single hand and used to transmit information between the operator of said device and an electronic apparatus in communication with said device, comprising: a housing; a first key array having a plurality of input means mounted to said housing and operable by the thumb of the hand; a second key array having a plurality of input means mounted to said housing, said second array disposed on an array axis which is aligned along a longitudinal axis of and operable by a first finger of the hand when the thumb of the hand is operably positioned proximal to said first array; a third key array having a plurality of input means mounted to said housing, said third array disposed on an array axis which is aligned along a longitudinal axis of and operable by a second finger of the hand when the thumb and the first finger of the hand are operably positioned proximal to said first and second arrays, respectively; a fourth key array having a plurality of input means mounted to said housing, said fourth array disposed on an array axis which is aligned along a longitudinal axis of and operable by a third finger of the hand when the thumb, first finger and second finger of the hand are operably positioned proximal to said first, second, and third arrays, respectively; a fifth key array having a plurality of input means mounted to said housing, said fifth array disposed on an array axis which is aligned along a longitudinal axis of and operable by a fourth finger of the hand when the thumb, first finger, second finger and third finger of the hand are operably positioned proximal to said first, second, third and fourth arrays, respectively; and the array axes of the second, third, fourth, and fifth arrays are non-parallel relative to each other providing a spacing between said key arrays maximized at the positions corresponding to the maximum extension of corresponding finger, and wherein at least one of said key arrays comprises a plurality of key pairs wherein one of the keys of said key pair is selected by lateral motion of the corresponding finger, and the key pair is selected by the extension of the corresponding finger.
16. An input device operated by a single hand and used to transmit information between the operator of said device and an electronic apparatus in communication with said device, comprising: a housing; a first key array having a plurality of input means mounted to said housing and operable by the thumb of the hand; a second key array having a plurality of input means mounted to said housing, said second array disposed on an array axis which is aligned along a longitudinal axis of and operable by a first finger of the hand when the thumb of the hand is operably positioned proximal to said first array; a third key array having a plurality of input means mounted to said housing, said third array disposed on an array axis which is aligned along a longitudinal axis of and operable by a second finger of the hand when the thumb and the first finger of the hand are operably positioned proximal to said first and second arrays, respectively; a fourth key array having a plurality of input means mounted to said housing, said fourth array disposed on an array axis which is aligned along a longitudinal axis of and operable by a third finger of the hand when the thumb, first finger and second finger of the hand are operably positioned proximal to said first, second, and third arrays, respectively; a fifth key array having a plurality of input means mounted to said housing, said fifth array disposed on an array axis which is aligned along a longitudinal axis of and operable by a fourth finger of the hand when the thumb, first finger, second finger and third finger of the hand are operably positioned proximal to said first, second, third and fourth arrays, respectively; and the array axes of the second, third, fourth, and fifth arrays are non-parallel relative to each other providing a spacing between said key arrays maximized at the positions corresponding to the maximum extension of corresponding finger, and wherein at least one of said key arrays comprises a plurality of key pairs wherein one of the keys of said key pair is selected by lateral motion of the corresponding finger, and the key pair is selected by the extension of the corresponding finger. 25. The input device according to claim 16, wherein said input means of said second, third, fourth and fifth key arrays are arranged in vertically aligned pairs along the axis of the finger of the hand designated for each.