Calcomp
developed by Calcomp Plotters/Technology
Calcomp Technology, Inc., often referred to as Calcomp or CalComp, was a company best known for its Calcomp plotters.
History
It was founded as California Computer Products, Inc in 1959, located in Anaheim, California.
Sanders Associates, Inc., purchased Calcomp in 1980. In 1986, Sanders Associates was purchased by the Lockheed Corporation, and merged into Lockheed's Information Systems Group. Lockheed kept CalComp as a brand name.
Shutdown
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-" trademarks:
Technical Services and spare parts: CalGraph Technology Services, Inc.
TechJet 5500 Large Format Inkjet Plotter / Printer Information: CalComp Graphics.
Digitizer, Tablets and scanners: GTCO CalComp, Inc.
Film Imaging Systems: EcoPro Imaging (now part of OYO Instruments)
Cutter and sign maker products: Westcomp
Products
It produced a wide range of plotters (both drum and flat-bed), digitizers, thermal transfer color printers, thermal plotters (InfoWorld June 13, 1994 p. 40) and other graphic input/output devices.
Begin with the source’s own compact description: “Calcomp” is developed by Calcomp Plotters/Technology. The dossier treats that line as a proposition to test through Calcomp, developed and Plotters, not as a finished interpretation.
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The phrase “developed by Calcomp Plotters/Technology” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Aug 28, 2026. The linked authority identifier is Q5018852. The first chronological checks are 1959, 1980, 1986 and 1999.
A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Calcomp” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.