The transfer of a file containing bytes or words in binary format, which is computer-readable, but generally is neither viewable on screen nor printable. A binary file compares to a text file, which is a binary file that contains only printable characters. See also binary.
(1) See binary file transfer.
(2) (Binary File Transfer) An early extension to Group 3 and 4 fax protocols that enables transmission of any binary data over a fax modem. Conceived before analog modems became widely used, it allows executable programs and other binary files to be encoded in the format of a printed fax page and converted back to binary at the receiving end. See binary file.