Calcomp
Encyclopedia
Calcomp Technology, Inc., usually known as Calcomp, was a company best known for its Calcomp plotter
Calcomp plotter
The Calcomp 560 drum plotter, introduced in 1959, was one of the first computer graphics output devices sold. The computer could control in 0.01 inch increments the rotation of an 11 inch wide drum and the horizontal movement of a pen holder over the drum. A solenoid could press the pen against...

s, which it was founded to produce in 1959. It produced a wide range of plotter
Plotter
A plotter is a computer printing device for printing vector graphics. In the past, plotters were widely used in applications such as computer-aided design, though they have generally been replaced with wide-format conventional printers...

s (both drum and flat-bed), digitizers, and other graphic input/output devices. It also produced IBM plug-compatible (PCM) disk and tape products. The disk products ranged from 2311 (CD-1) through 3350 equivalents. The tape product was a 3420 equivalent.

CalComp (California Computer Products), Anaheim, California was bought by Lockheed in the 1980s.

Calcomp acquired Talos and Summagraphics, which had acquired Houston Instruments.

Calcomp Technology shut down its operations in 1999 and transferred different product lines to various other companies, some of whom continue to use the "Calcomp" or other "Cal-" trademark
Trademark
A trademark, trade mark, or trade-mark is a distinctive sign or indicator used by an individual, business organization, or other legal entity to identify that the products or services to consumers with which the trademark appears originate from a unique source, and to distinguish its products or...

s:
  • Technical Services and spare parts: CalGraph Technology Services, Inc.
  • TechJet 5500 Large Format Inkjet Plotter / Printer Information: CalComp Graphics.
  • Digitizer, Tablets and scanners: GTCO
    GTCO
    GTCO Corporation is a corporation producing interface devices including digitizers, graphics tablets and audience response systems.GTCO was established in 1975 in Rockville, Maryland by two graduates of the Stevens Institute of Technology in Hoboken New Jersey . In 1985, GTCO moved to its current...

     CalComp, Inc.
  • Film Imaging Systems: EcoPro Imaging (now part of OYO Instruments)
  • Cutter and sign maker products: Westcomp

Houston Instruments

Houston Instruments was a manufacturer of pen plotters. They used the DMPL
DMPL
Digital Microprocessor Plotter Language is a vector graphics file format from Houston Instruments developed to control pen plotters and later used on cutting plotters.-Driver:This language is not compatible with HP-GL, see its EAGLE definition:...

 plotting control language. They competed with Hewlett Packard plotters such as the HP 7470
HP 7470
The HP 7470 was a small low-cost desktop pen plotter introduced by Hewlett Packard's San Diego division. It used a revolutionary "grit wheel" design which moved the paper held in place by a wheel with embedded grit and a pinch roller. The HP 7470 had only two pens, one on either side. It was much...

.
They were purchased by Summagraphics.
Drivers for their tablets are located at: http://www.gtcocalcomp.com/supportsummasoftware.htm
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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