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What (who) is Ward Christensen - definition

COMPUTER PIONEER, INVENTED XMODEM AND CO-INVENTED BBS

Ward Christensen

<person> The inventor of XMODEM and of the BBS. Ward did physics in college and programmed mainframes for IBM. Ward and friend Randy Suess set up their BBS on first on 1978-02-16 in Chicago. It ran on an S-100 computer with 64k RAM and two single-sided 8" 250kB diskettes. {Freeware Hall of Fame (http://freewarehof.org/ward.html)}. (2005-09-20)

Willam Christensen

AMERICAN BALLET DANCER (1902-2001)

William Christensen; Willam F. Christensen; William F. Christensen; Ballets by Willam Christensen; William Farr Christensen; Christian William Christensen; Willam Farr Christensen

Willam Farr Christensen (August 27, 1902 – October 14, 2001)Was born Christian William Christensen, until his mother changed his name to William Farr Christensen, to include her maiden name. As a professional dancer in San Francisco, Christensen dropped the second "i" in his name to become Willam, which he thought fit better with the European art form of ballet.

https://en.wikipedia.org/wiki/Willam_Christensen

Phil Christensen

AMERICAN PLANETARY SCIENTIST

Philip Christensen; Philip R Christensen; Philip R. Christensen

Philip Russel Christensen (born 1953) is a geologist whose research interests focus on the [physical properties, processes, and morphology] of planetary surfaces, with an emphasis on [[Mars and the Earth. He is currently a Regents' Professor and the Ed and Helen Korrick Professor of Geological Sciences at Arizona State University (ASU).

https://en.wikipedia.org/wiki/Phil_Christensen

Wikipedia

Ward Christensen

Ward Christensen (born 1945 in West Bend, Wisconsin, United States) is the co-founder of the CBBS bulletin board, the first bulletin board system (BBS) ever brought online. Christensen, along with partner Randy Suess, members of the Chicago Area Computer Hobbyists' Exchange (CACHE), started development during a blizzard in Chicago, Illinois, and officially established CBBS four weeks later, on February 16, 1978. CACHE members frequently shared programs and had long been discussing some form of file transfer, and the two used the downtime during the blizzard to implement it.

Christensen was noted for building software tools for his needs. He wrote a cassette-based operating system before floppies and hard disks were common. When he lost track of the source code for some programs, he wrote ReSource, an iterative disassembler for the Intel 8080, to help him regenerate the source code. When he needed to send files to Randy Suess, he wrote XMODEM.

Jerry Pournelle wrote in 1983 of a collection of CP/M public-domain software that "probably 50 percent of the really good programs were written by Ward Christensen, a public benefactor." Christensen received two 1992 Dvorak Awards for Excellence in Telecommunications, one with Randy Suess for developing the first BBS, and a lifetime achievement award "for outstanding contributions to PC telecommunications." In 1993, he received the Pioneer Award from the Electronic Frontier Foundation.

Christensen worked at IBM from 1968 until his retirement in 2012. His last position with IBM was field technical sales specialist.

In May 2005, Christensen and Suess were both featured in BBS: The Documentary.

https://en.wikipedia.org/wiki/Ward Christensen