Does ASCII contain codes of all the languages in use?

No, ASCII does not contain codes for all languages in use. ASCII (American Standard Code for Information Interchange) is limited to 128 characters, primarily covering English letters, digits, and basic punctuation. This limitation makes it inadequate for representing characters from other languages, such as accented letters or non-Latin scripts. For broader language support, encodings like UTF-8 or Unicode are used, which can represent a vast array of characters from multiple languages.