Ward Christensen
Computer pioneer, invented Xmodem and co-invented BBS · United States · On the map · Developers · Lived 1945 to 2024 · aged 78
Ward Leon Christensen was an American computer scientist who was the inventor of the XMODEM file transfer protocol and a co-founder of the CBBS bulletin board, the first bulletin board system (BBS) ever brought online.
Ward Christensen is read about 15 times a day, in 6 languages.
A typical day, 30 days to 23 September 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
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About this person
Country
United States
Category
Developers
Type
Developer
Status
Deceased
Dates
Lived 1945 to 2024 · aged 78
