Origin and Etymology of ascii
First Known Use: 1963See Words from the same year
ASCII Defined for English Language Learners
Definition of ASCII for English Language Learners
: a standard way of representing numbers and letters in a computer file so that they can be read by most computers
Learn More about ascii
Seen and Heard
What made you want to look up ASCII? Please tell us where you read or heard it (including the quote, if possible).