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In page Desktop publishing:

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Desktop publishing was first developed at Xerox PARC in the 1970s.[1][2] A contradictory claim states that desktop publishing began in 1983 with a program developed by James Davise at a community newspaper in Philadelphia.[3] The program Type Processor One ran on a PC using a graphics card for a WYSIWYG display and was offered commercially by Best Info in 1984.[4] Desktop typesetting with only limited page makeup facilities[citation needed] arrived in 1978–1979 with the introduction of TeX, and was extended in 1985 with the introduction of LaTeX.