Q. One of the following is not a part of typewriter ?

A
Segment
B
Buffer spring
C
Platen
D
Printing Screw
Solution:

A typewriter is a mechanical or electromechanical machine for writing characters similar to those produced by printer’s movable type. Typically, a typewriter has an array of keys, and pressing one causes a different single character to be produced on the paper, by causing a ribbon with dried ink to be struck against the paper by a type element similar to the sorts used in movable type letterpress printing. Commonly, a separate type element (called a typebar) corresponds to each key, but the mechanism may also use a single type element (such as a typeball) with a different portion of it used for each possible character. At the end of the nineteenth century, the term typewriter was also applied to a person who used a typing machine.

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