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File No. 1448-09
Form A24-3010-3




Systems Reference Library




IBM 1448 Transmission Control Unit

This reference publication includes a description of
the IBM 1448 Transmission Control Unit as a link be-
tween an IBM 1440 or 1460 Data Processing System
and a network of as many as 40 half-duplex communi-
cation lines. Each line can have a number of terminals.
The description of this IBM Tele-processing system
includes