See binary numbers and binary file. (2) All data/information stored in the computer, which is coded in binary. See bit. (3) A file transfer mode that transmits a file without any change whatsoever.
If you ever need to write a binary file from a traditional language like C, it isn’t all that hard to do. About the worst thing you might have to deal with is attempts to fake line endings ...
A binary option for XML, which is a text-based format. Binary versions of XML take up less space, and, more importantly, requests and responses take less network bandwidth. For example ...