2. A keyboard, as in claim 1, comprising letter keys arranged as follows: on the left hand side of the keyboard as viewed by the operator: a vowel assigned to the first thumb key; and on the right hand side of the keyboard as viewed by the operator: a consonant assigned to the fourth thumb key, a second consonant assigned to the fifth lower letter key, a third consonant assigned to the sixth lower letter key, a fourth consonant assigned to the seventh lower letter key, and a fifth consonant assigned to the eighth lower letter key; wherein each of these five consonants is a different letter.
2. A keyboard, as in claim 1, comprising letter keys arranged as follows: on the left hand side of the keyboard as viewed by the operator: a vowel assigned to the first thumb key; and on the right hand side of the keyboard as viewed by the operator: a consonant assigned to the fourth thumb key, a second consonant assigned to the fifth lower letter key, a third consonant assigned to the sixth lower letter key, a fourth consonant assigned to the seventh lower letter key, and a fifth consonant assigned to the eighth lower letter key; wherein each of these five consonants is a different letter. 5. A keyboard, as in claim 2, for the Italian language comprising letter and control keys arranged as follows: on the left hand side of the keyboard as viewed by the operator: on the thumb key row: U assigned to the first thumb key and the space key is assigned to the second thumb key; on the home key row: O assigned to the second home key, I assigned to the third home key, A assigned to the fourth home key, and E assigned to the fifth home key; and on the lower letter key row: case shift assigned to the third lower letter key; and on the right hand side of the keyboard as viewed by the operator: on the thumb key row: M assigned to the fourth thumb key and N assigned to the fifth thumb key; on the home key row: L assigned to the eighth home key, S to the ninth home key, T assigned to the tenth home key, and R assigned to the eleventh home key; and on the lower letter key row: V assigned to the fifth lower letter key, P assigned to the sixth lower letter key, C assigned to the seventh lower letter key, and D assigned to the eighth lower letter key.