The American Standard Code for Information Interchange (ASCII) is a 7-bit character encoding standard that assigns numerical values to letters, digits, punctuation marks, and control characters, facilitating consistent text representation in computers and electronic devices. The standard ASCII table comprises 128 characters, including control codes (0–31), printable symbols (32–126), and the delete character (127). Each character is mapped to a unique decimal, hexadecimal, and binary value, ensuring uniformity across different platforms. For instance, the uppercase letter 'A' is represented by the decimal value 65, hexadecimal 41, and binary 01000001. Understanding the ASCII table is essential for tasks such as data encoding, programming, and troubleshooting character encoding issues. For a comprehensive ASCII table with decimal, hexadecimal, binary, and HTML representations, you can refer to resources like RapidTables.