Alphanumeric_character | TriviaQuestions.online

⭐ In the context of information systems, alphanumeric characters are most directly associated with what type of data representation?

Alphanumeric characters, by their nature, are distinct and limited in number, fitting the definition of discrete symbols used in digital data representation, unlike the continuous range of values found in analog data.

⭐ Core Definition: Alphanumeric character

Alphanumeric characters or alphanumerics refers to characters belonging to the English alphabet and Arabic numerals. It includes both lower and uppercase characters. The complete list of alphanumeric characters in lexicographically ascending order is: 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.

Different alphanumeric characters have similar appearances, such as I (upper case i), l (lowercase L), and 1 (one), and O (uppercase o), Q (uppercase q) and 0 (zero). Other similarities can include 5 and S, Z and 2.

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👉 Alphanumeric character in the context of Digital data

Digital data, in information theory and information systems, is information represented as a string of discrete symbols, each of which can take on one of only a finite number of values from some alphabet, such as letters or digits. An example is a text document, which consists of a string of alphanumeric characters. The most common form of digital data in modern information systems is binary data, which is represented by a string of binary digits (bits) each of which can have one of two values, either 0 or 1.

Digital data can be contrasted with analog data, which is represented by a value from a continuous range of real numbers. Analog data is transmitted by an analog signal, which not only takes on continuous values but can vary continuously with time, a continuous real-valued function of time. An example is the air pressure variation in a sound wave.

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