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IBM Machine Code Printer Control Characters
Early mainframe printers were so called ''line printers''. Line printers provided only a very limited set of commands to control how the paper was advanced when print lines were printed. The application writing reports, list, etc. to be printed had to include those commands in the print data. These single character print commands are called ''print control characters''.
== Introduction into Print Control Characters ==
''Printer control characters'' and ''Carriage control characters'' are IBM mainframe terms that denote the special meaning which the first character on a line of printable text may have. The first character of each line of text is interpreted as a ''control character'' or ''printer command'' instead of a character to be printed if a corresponding attribute is set for the print data set (''data set'' is mainframe speak for what is known as a ''file'' on other operating systems).
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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