| Graphic Character |
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In ISO 646, graphic characters are contained in rows 2 through 7 of the Code table. However, two of the characters in these rows, namely the Space Character SP at row 2 column 0 and the Delete Character DEL (also called the rubout character) at row 7 column 15, require special mention. The space is considered to be ''both'' a graphic character and a Control Character in ISO 646; this is probably due to it having a visible form on Computer Terminal s but a control function (of moving the print head) on Teletypes . In Unicode, space is considered a graphic character. The delete character is strictly a control chracter, not a graphic character. This is true not only in ISO 646, but also in all related standards including Unicode. However, many modern character sets deviate from ISO 646, and as a result a graphic character might occupy the position originally reserved for the delete character. |
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