KOffice is a free and open source office suite and graphics suite by KDE for Unix-like systems and Windows. KOffice includes a word processor, a spreadsheet, a presentation program, and several other elements that fluctuated over the course of the development of KOffice.

KOffice includes several different applications, including productivity, creativity, management, and supporting programs.

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Martin Cooper (inventor) Inventing handheld cellular mobile phone Making world’s first handheld cellular mobile phone call. Martin “Marty” Cooper (born December 26, 1928) is an American engineer.