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A typewriter is a mechanical or electromechanical machine for writing characters similar to those produced by printer's movable type. A typewriter operates by means of keys that strike a ribbon to transmit ink or carbon impressions onto paper. Typically, a single character is printed on each key press. The machine prints characters by making ink impressions of type elements similar to the sorts used in movable type letterpress printing. At the end of the nineteenth century, the term typewriter was also applied to a person who used a typing machine.

The first commercial typewriters were introduced in 1874, but did not become common in offices until after the mid-1880s. The typewriter quickly became an indispensable tool for practically all writing other than personal handwritten correspondence. It was widely used by professional writers, in offices, and for business correspondence in private homes.

Notable typewriter manufacturers included E. Remington and Sons, IBM, Imperial Typewriters, Oliver Typewriter Company, Olivetti, Royal Typewriter Company, Smith Corona, Underwood Typewriter Company, Adler Typewriter Company and .

Although many modern typewriters have one of several similar designs, their invention was incremental, developed by numerous inventors working independently or in competition with each other over a series of decades. As with the automobile, telephone, and telegraph, a number of people contributed insights and inventions that eventually resulted in ever more commercially successful instruments. Historians have estimated that some form of typewriter was invented 52 times as thinkers tried to come up with a workable design.


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