| Subject | English | Welsh |
| comp., MS | binary digit | digid deuaidd (The smallest unit of information handled by a computer. One bit expresses a 1 or a 0 in a binary numeral, or a true or false logical condition. A group of 8 bits makes up a byte, which can represent many types of information, such as a letter of the alphabet, a decimal digit, or other character) |
| comp., MS | binary file | ffeil ddeuaidd (A file that contains encoded information that is interpreted according to the application that created it. In general, a binary file can be edited only by the application in which it was created) |
| comp., MS | Binary Interchange File Format | Fformat Ffeil Cyfnewid Deuaidd (The binary file formats that are used to save Microsoft® Office Excel® workbooks) |