line printer

noun Computers.
a printer that produces an entire line of output at a time.

Origin:
1950–55

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
line printer
 
n
an electromechanical device that prints a line of characters at a time rather than a character at a time, at speeds from about 200 to 3000 lines per minute: used in printing and in computer systems

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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FOLDOC
Computing Dictionary

line printer definition

printer
A printer that prints one entire line at a time. Print quality is low compared with a laser printer. Line printers typically use sprocket feed and wide fanfold paper.
Line printer speed is usually measured in lines per minute (lpm). 1200 lpm is a good rate for a line printer like a 3205 m5. 66 lines per page is typical, giving 18 pages per minute (ppm). This assumes all upper case, if a mixed case print train is used, throughput is halved. By comparison, a fast laser printer can output 100+ ppm
(1999-01-13)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Example sentences
Input required punched cards, and output was produced on a line printer that
  limited detail to the size of the printer typeface.
Time histories recorded via a line printer are to be clearly identified for
  cross plotting on the airplane data.
All five programs use card input and a line printer.
Time histories recorded via a line printer are to be clearly identified for
  cross plotting on the helicopter data.
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