The backslash \ is a symbol or typographical mark used mainly in computing and is the mirror image of the common slash /. It is sometimes called a hack, whack, escape (from C/UNIX), reverse slash, slosh, downwhack, backslant, backwhack, reverse slant, and reversed virgule.
It was initially introduced by Bob Bemer in ASCII to represent the Boolean operators AND as “/\” and OR as “\/”. In programming languages, it has different uses. In C and Perl programming languages, Ex: It is used as an escape character, to introduce special characters within Haskell, and as a line delimiter in general. In operating systems, It is used to define and separate folders and directories when writing/passing commands.
Early typewriters and computer keyboards only had a forward slash. The backward slash was not made popular until MS-DOS started being used.
How Backslash Uses in Computer
A backslash can represent a file path in MS-DOS and Windows. For example, c:\windows is an example of the backslash being used. It may also be used for any of the following reasons.
- The backslash is used as an escape character.
- A file and directory separator in a file path.
- A networked computer or folder in a network path.