Columbia University Computing History   

The DEC LP20B Line Printer

LP20 Line Printer
LP20 Line Printer
Mechanism:     Rotating drum, ribbon, and hammers
Paper:         Fanfold, pinfeed, 1 to 6 parts
Speed:         240 lines/minute, 2 drum revolutions per line
Columns:       132
Spacing:       10 characters/inch horizontal, 6 vertical
Character set: 96 ASCII printing characters
Interface:     UNIBUS

Date: About 1975.

Columbia University Computing History Frank da Cruz / [email protected] This page created: January 2001 Last update: 31 March 2021