Ответы на вопрос:
1) there are three types of printers, such as character printers, line printers and page printers. 2)a letter- quality printer is a character printer which produces output of typewriter quality. 3) a dot-matrix printer, is is a printer, that forms each character as a pattern of dots. 4) character printers 5) line printer 6)impact printers are electromechanical machines used for high- volume paper output on most computer systems. their printing speeds are such that to an observer they appear to be printing a line at a time. 7) a non impact printer is a page printer, their printing rates are so high that output appears to emerge from the printer a page at a time. 8) line and character printers 9) a dot matrix printer forms every character out of dots, but a letter quality has a typewriter quality 10) letter quality 11) - 12) - 13) drum printers and chain printers. 14) they use electrophotographic techniques.
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