Display for word processor presenting margin zone markers

In a display device in a character processing machine, which machine operates to provide text in the form of successive lines of characters, with the length of each such line being within a predetermined range defined by a margin zone at the right-hand end of each line, the machine including an input keyboard for the input of character representations and a data memory connected for storing such representations, and the display device being connected to receive such representations from the memory and to display at least the end portion of a line of characters, with each character appearing, in the order of its input to the keyboard, at an entry location of the display and then shifting to the left in the display upon delivery of each subsequent character to the display, the display device having a maximum character display capacity which is less than the number of characters in a single text line of maximum length, the improvement wherein said display device presents a plurality of character display locations equal in number, and corresponding in position, to the spaces of the margin zone at the end of each line of characters, said display device comprises marker display elements at said display locations, and said machine comprises means connected to said display device to actuate said marker display elements for causing margin zone markers to be displayed in said display device at said character display locations.