Corona Data Systems

Corona Data Systems, later renamed Cordata, was an American personal computer company. It was one of the earliest IBM PC compatible computer system companies. Manufacturing was primarily done by Daewoo of Korea, which became a major investor in the company and ultimately the owner.[1][2][3]

Corona Data Systems
IndustryComputer Hardware
FoundedWestlake Village, California, United States (1982 (1982))
FounderRobert Harp
Area served
Productsdesktops portables


Founded in 1982 by Robert Harp, who previously helped found Vector Graphic.[4]

The original Corona PC was released in 1983.[5]

By 1984, Corona employed 280 people.[4]

IBM LawsuitEdit

Corona claimed "Our systems run all software that conforms to IBM PC programming standards. And the most popular software does."[6] In early 1984, IBM sued Corona and Eagle Computer for copyright violation of the IBM PC BIOS. Corona settled with IBM by agreeing to cease infringement.[7]

Corona PPC-400Edit

Cordata Portable PC PPC-400, image courtesy of Personal Computer Museum

Corona Portable PC Model PPC-400, arguably the most notable Corona computer, was introduced in 1984. The PPC-400 was remarkable for its elegant and clear screen fonts.[citation needed] The desktop version was the PC-400.[8]


After Daewoo acquired a 70% share in the company, Corona Data Systems was renamed Cordata in 1986 in order to reflect diversification and to try to distance itself from identification as just a "PC clone" manufacturer.[1] Harp resigned in 1987, accusing Daewoo of transforming the company into a paper-only entity for the purpose of loss write-off. According to Harp, Cordata had posted $20M losses in the previous year despite the $40M investment made by Daewoo since 1985.[9]


Early IBM PC compatible computer system companies:[10]

See alsoEdit


  1. ^ a b Welch, Mark (December 2, 1985), "Corona Data Systems Gets New Backing", InfoWorld, p. 13, retrieved February 28, 2011
  2. ^ Bates, James (June 2, 1987), "Cordata Gets a Seoul Man as CEO : Daewoo Trouble-Shooter Hopes to Put IBM-PC Clone-Maker Back on Track", Los Angeles Times, retrieved February 28, 2011
  3. ^ "Cordata's Founder Resigns in Dispute With Korean Owners", Los Angeles Times, August 13, 1987, retrieved February 28, 2011
  4. ^ a b Bartimo, Jim (July 30, 1984), "Q&A: Robert Harp 'PC Compatibility is a great equalizer'", InfoWorld, p. 46, retrieved February 28, 2011
  5. ^ "Corona advertisement", InfoWorld, p. 50, July 18, 1983, retrieved February 28, 2011
  6. ^ "Pick Up Where IBM Leaves Off". InfoWorld (advertisement). 1984-02-27. p. 41. Retrieved 18 January 2015.
  7. ^ Caruso, Denise (1984-02-27). "IBM wins disputes over PC copyrights". InfoWorld. p. 15. Retrieved 18 January 2015.
  8. ^ "Corona Portable PPC-400". The Freeman PC Museum. Retrieved February 28, 2011.
  9. ^ Cordata's Founder Resigns in Dispute With Korean Owners
  10. ^ Watt, Peggy (December 17, 1984), "Compatible Makers Face IBM", InfoWorld, pp. 23–24, retrieved February 28, 2011

External linksEdit