Digital Engineering VT640

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Digital Engineering VT640
Manufacturer Digital Engineering
Model VT640
Introduced September, 1980
Introductory Price $1,495
Display Size 12-inch
Phosphor P31 Long-persistence Green
Graphic Modes
Type Monochrome
Resolution 640x480

The Digital Engineering VT640 add-on graphics board for the VT100 was introduced in 1980 as the "Retrographics VT100".[1] Presumably DEC didn't like use of VT100 in the product name and by 1982 it was renamed the VT640 and sold for $1,495.[2]


  1. Digital Engineering advertisement, Computerworld, September 15, 1980, pg. 27
  2. M/A-Com advertisement, Computerworld, September 27, 1982, pg. 136