En puntuación el espacio es un carácter que se representa convencionalmente por ' ' y se escribe pulsando la barra espaciadora en una máquina de escribir, un computador o cualquier otro teclado fabricado a tal efecto. El efecto de la barra espaciadora es mover el punto de inserción una posición.

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In writing, a space ( ) is a blank area that separates words, sentences, and other written or printed glyphs (characters). Conventions for spacing vary among languages, and in some languages the spacing rules are complex. Typesetting uses spaces of varying length for specific purposes. The typewriter, on the other hand, can accommodate only a limited number of keys. Most typewriters have only one width of space, obtained by pressing the space bar. Following widespread acceptance of the typewriter, some spacing and other typewriter conventions, which were based on the typewriter's mechanical limitations, have influenced professional typography other designers of printed works. Computer representation of text eliminates all mechanical and physical limitations. Spaces of various widths, styles, or language characteristics (different space characters) are indicated with unique code points. Whitespace characters include spaces of various width, including all those that professional typesetters employ.

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