Also called a backward slash, downward slash, and reverse solidus, the backslash is a character ( \ ) introduced by Bob Bemer in 1960. Although "slash" often describes the forward slash, it can describe either a forward slash or backslash. It's better to say "backslash" or "whack" instead of "slash" when telling someone to enter a backslash., In this expression, the backslash symbol indicates the start of the pi command which renders the symbol π. The backward slash symbol "\" is primarily used in computing and programming as an escape character., It is a typographical mark used mainly in computing. It is called a "backslash" because it is the reverse of the slash (/) or forward slash. The backslash is used in several computer systems, and in many programming languages such as C and Perl. It is commonly seen in Windows computers:, The meaning of BACKSLASH is a mark \ used especially in computer programming., To type the backslash symbol on your keyboard, press and hold the Alt key and type the Backslash alt code which is 92 on the numeric keypad, then release the alt key. For Mac users, press on your keyboard, Alt+7 or alt+shift+7 or alt+shift+/. The shortcut you use depends on your keyboard type., The Backslash symbol is a typographical mark that is mainly used in computing. It has other names like hack, whack, escape (from C/UNIX), reverse slash, slosh, down whack, back slant, back whack, bash, reverse slant, reversed solidus, and reversed virgule..