Ctrl-H would backspace and delete. "dash" and "dot", and a spacebar (along with backspace). The Backspace key deletes the preceding character. Fitting the additional keys onto the keyboard required shrinking the Return and Backspace keys. In computing, there has been ambiguity between the backspace key and delete key. The expression can be edited using the arrow and backspace keys, and re-evaluated as desired. The backspace character (BS) moves the printing position one character space backwards. The space bar, dash/underscore, index, backspace and line feed repeated when continually held down. They also support undo and backspace and provide memory for up to 80 CFj registers. The option tells not to output backspace characters. FN's first international agreement was with American IPTV provider, Backspace. Some systems (such as the original Apples) converted it to a backspace. On her laptop, she records a song pondering her existence in Backspace.