What does alpha numeric mean?

Answer 1

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Alphanumeric is a collective term used to identify letters of the Roman Alphabet and Roman Numbers. There are either 36 (single case) or 62 (case-sensitive) alphanumeric characters. The alphanumeric character set consists of the numbers 0 to 9 and letters A to Z.
computing terminology, a character stored in alphanumeric form is considerable smaller than storing a 8-bit ASCII character, as each character is only 6-bits in length.

There is no standard for storing 6-bit alphanumeric data, and since a 6-bit character has up to 64 combinations, and only 36 are used in single case, there is room for another 28 characters, usually slashes and other punctuation making alphanumeric data useful for storing text and website addresses.

Alphanumeric data can be stored even smaller in computer systems if the storage medium is calculated in base 36, where each numerical position represents a character. Storing characters in base 36 and base 64 (6-bits per character) is much more memory efficient for storing text-only data than storing data in base 256 (8-bits, or a byte).

Answer 2

Alpha stands for alphabets and numeric stands for number. So a non alpha numeric character will be any symbol without letters (alphabets) or numbers. As you are aware, an upper case means capital letter. e.g., A, B, C, etc. and a lower case are small letters: a, b, c, etc. So out of the 8 number of characters, you were asked to use at least one capital letter one small letter, and one symbol Taking this condition into account you may use such an ID like London*3 'L' is an upper case 'ondon' are lower cases * is a non alpha numeric Total number of characters are 8 (Alphas: L (1), o (2), n (3) d (4) o (5) n(6); non-alpha numeric (symbol) * (7); numer: 3 (8))

Answer 3

Alpha numeric means composed of letters of the alphabet and numerals. For Americans, that generally means the English alphabet (a-z) and Arabic numerals (0-9). There are many other alphabets and a few other systems of numerals in use around the world.

Generally this is used to describe some sort of text display device. I.e., it can display letters and numbers equally well. This distinguishes it from calculator displays, most of which are numeric only.

Answer 4

Using letters and numbers. So hieroglyphics are an example of a writing system that is not alphanumeric.

Answer 5

like bingo is alpha numeric . ie B12, O14, G7...