Alphanumeric is a term meaning consisting of the letters of the alphabet, numbers, and special characters used by computers. The typewriter or computer keyboard is called an
alphanumeric keyboard since it has keys for all these letters, numbers, and characters. A computer may have an
alphanumeric display, which shows only alphanumeric characters, as opposed to a display with a full graphics capability, which can show such drawings as bar charts. Research Alphanumeric