In 1976 Tektronix introduced a graphic engineering desktop computer called the 4051.  It consisted of a 1024x768 Direct View Storage Tube, a 3M DC300 tape system, an 800KHz Motorola 6800 running BASIC, and a rear RomPack for extending the capability of the system. It was an incredible product and was a follow-on to the Tek 21 and 31 Calculators.

This drawing from the era shows the GCS team in action.  The organization responsible for the 4051 was the Graphic Computing Systems.


While these systems still operate fine and have sharp crisp displays, the tapes did not age well. They used tension bands that rot and sometimes pull the oxide off the tapes.  Fortunately ex-Tek engineer Micheal Cranford designed a flash-based RamPack to fit in the rear slots and replace the tape drive and with a lot more capacity. There are over 118 demo and other programs on the museum RamPack.

We tend to run program #8 at the museum which is a free-running demo program with 30 images.

Click on the image below to open a scan of the 1976 sales brochure for the 4051.

Thousands of programs were written for the 4051. Tektronix released many software RomPacks for a variety of applications. The follow-on products were the 4052 and 4054.  Both used a bit-slice processor to increase speed by ~10X. The 4054 increased the display size to 19" and the resolution to 4096x3072. The museum has two 4051 and one 4052 systems on display.  Click on the image below to read the brochure on the 4050 family of desktop computers.

There is a video of a 4010 demonstration that essentially shows what these displays looked like in operation.  Stop by the museum to see this fantastic system in operation. We also have a restored 4662 8 pen plotter attached to a 4051 and are seeking a program to utilize this plotter.

This November 2017 Tek Retiree News has two articles, Early Marketing Days of the 4051 by Gary Laroff,  and The Tektronix 4051 By Bill Gellatly.  Click on the image to view the PDF.


Tektronix designed an internal 6800 microprocessor development system called the "bit bucket".  This was used on many development projects including the 4051.