Method of inputting information into an electrical unit

A method of inputting information comprising at least one letter of an alphabet into an electrical unit, said method comprising the steps of:

• a) inputting an alphabetic character into the electrical unit;
• b) comparing the alphabetic character input in step a) when no other characters have been input prior to the inputting of step a), or comparing a character string comprising previously input characters and the alphabetic character input in step a), with information entries in a comparison set of information;
• c) offering at least one of the information entries in the comparison set for input in the electrical unit when the alphabetic character input in step a) is identical with the first character of said at least one of said information entries in the comparison set or, if said previously input characters are present, when said character string of step b) agrees with beginning characters of said at least one of the information entries in the comparison set;
• d) displaying said at least one of said information entries offered for input from the comparison set with all of said characters present in said at least one of the information entries;
• e) selecting one of the at least one of the information entries offered in step c) for input to the electrical unit or rejecting said at least one of the information entries for input to the electrical unit by inputting another alphabetic character;
• and
• f) repeating steps b) to e) with another character string consisting of said alphabetic character and said another alphabetic character in place of said alphabetic character in steps b) and c) until the selecting of step e) takes place.