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Some software like TeX or Microsoft Windows use the opposite method for diacritical marks, namely positioning the accent first, and then the base letter on its position. Computers[ edit ] Although the term "backspace" is the traditional name of the key which deletes the character to the left of the cursor, the actual key may be labeled in a variety of ways, for example delete,  Erase for example in One Laptop Per Child or with a left pointing arrow.
The backspace is distinct from the delete keywhich in paper media for computers would punch out all the holes to strike out a character, and in modern computers deletes text following it. Also, the delete key often works as a generic command to remove an object such as an image inside a document, or a file in a file managerwhile backspace usually does not. That control code could also be accessed by pressing Control-H, as H is the eighth letter of the Latin alphabet.
Even if a terminal did interpret backspace by deleting the preceding character, the system receiving the text might not. Then, the sender's screen would show a message without the supposedly deleted text, while that text, and the deletion codes, would be visible to the recipient.
This shortcut has also made it into the insert mode of the Vi text editor and its clone Vim. However, it is still used e.
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As most contemporary computer display and typesetting systems are raster graphics-based rather than character-based as of the yearthey make overstrike actually quite easy to implement. However, the use of proportional-width rather than fixed-width monospaced fonts makes the practical implementation of overstrike more complicated, and the original physical motivation for the technique is not present in digital computer systems. Backspace composition no longer works with typical modern digital displays or typesetting systems [note 3] It has to some degree been replaced with the combining diacritical marks mechanism of Unicodethough such characters do not work well with many fonts, and precomposed characters continue to be used.