keypad
Sign in to savethumb|A telephone keypad using the ITU E.161 standard. thumb|Numeric keypad, integrated with a computer keyboard thumb|A calculator thumb|1984 flier for projected capacitance keypad A keypad is a block or pad of buttons set with an arrangement of digits, symbols, or alphabetical letters. Pads mostly containing numbers and used with computers are numeric keypads. Keypads are found on devices which require mainly numeric input such as calculators, television remotes, push-button telephones, vending machines, ATMs, point of sale terminals, combination locks, safes, and digital door locks. Many de
Article
11 sectionsContents
- Uses and functions
- Keypad technologies
- Key layout
- Origin of the order difference
- Keypad track design
- Separate connections
- X/Y multiplexing
- Charlieplexing
- See also
- References
- External links
thumb|A telephone keypad using the ITU E.161 standard. thumb|Numeric keypad, integrated with a computer keyboard thumb|A calculator thumb|1984 flier for projected capacitance keypad A keypad is a block or pad of buttons set with an arrangement of digits, symbols, or alphabetical letters. Pads mostly containing numbers and used with computers are numeric keypads. Keypads are found on devices which require mainly numeric input such as calculators, television remotes, push-button telephones, vending machines, ATMs, point of sale terminals, combination locks, safes, and digital door locks. Many devices follow the E.161 standard for their arrangement.
== Uses and functions == A computer keyboard usually has a small numeric keypad on the side, in addition to the other number keys on the top, but with a calculator-style arrangement of buttons that allow more efficient entry of numerical data. This number pad (commonly abbreviated to numpad) is usually positioned on the right side of the keyboard because most people are right-handed.