The 12-button alphanumeric telephone keypad is a prime example. The letters on each key–“ABC” on the 2 key, “DEF” on the 3 key, and so on–are a legacy of the 1920s, when phone numbers ...

Typing text using a cell phone forces someone to work on nine tiny keys that could represent any of three letters at any time. By comparison, a full-sized keyboard has about four dozen keys ...

Typing text using a cell phone forces someone to work on nine tiny keys that could represent any of three letters at any time. By comparison, a full-sized keyboard has about four dozen keys ...

It could soon be a lot easier to tap out messages and use websites via your mobile phone. Next year could see the appearance of mobile phones that have a redesigned keypad that gives each letter and ...

Selecting alphabetic letters on a telephone keypad by pressing the key from one to three times depending on the placement of the letters. For example, the 2 key is also a---c. To enter "a," you ...

For letters, press the raised buttons ... Intended to be designed into new mobile phones to replace the standard 12-button telephone keypad, it allows vastly easier use of features found on modern ...

Translation on the telephone keypad: 486-5127. Before 1977, Chicago phone numbers were often listed as Jeffrey remembers. The letters, which signified longer words, had once stood for exchanges ...