VT125

Introduction

The VT125 was a graphics display terminal that contained a bit map architecture with the alphanumeric capability of the VT100 video terminal. The VT125 was a smart terminal that directly executed DEC's general purpose graphics descriptor, ReGIS (Remote Graphics Instruction Set). ReGIS let a user create and store pictures as ASCII text and efficiently send those pictures to remote displays. The VT125 also has an auxiliary data port for making hard copies of the display with the DECwriter IV graphics printer. The VT125 includes a VT05 emulator for those users with programs using the older VT05.

The VT125 graphics terminal is a VT100 video text terminal and a graphics processor in a single package. The graphics processor processes graphic commands from a computer to generate an image in its own memory. It then sends a video representation of the image to the VT100 text terminal's internal monitor screen and to an optional external color monitor. It can also send a bit map representation of the image to a graphics printer.