RALEIGH, N.C. — A gecko-shaped pin has been a part of Darlene Johns’ daily life for almost as long as her company, Alphanumeric Systems, has been. After 30 years, Johns is making some changes in her ...

While a lot of high-tech service and management firms are treading water, cutting costs or shutting down, Alphanumeric continues to grow. “Everybody is in cost recovery mode and holding umbrellas over ...

One of the limitations of the small 8 bit microcontrollers like the Atmel ATMega family adopted by the Arduino board, is the reduced number of I/O ports. Among the main advantages of these ...

A string of characters containing both letters (A-Z) and numbers (0-9). An alphanumeric text entry field will accept both letters and numbers. An alphanumeric keypad is one with both letters and ...