BBS Pioneer Ward Christensen Has Died

Ward Christensen, co-inventor of the first computer-based Bulletin
Board System, and creator of XMODEM, the first file-transfer protocol
designed to work over noisy phone lines (both in the late 1970s), has
passed away at the age of 78.

He never made a big deal out of his pioneering achievements, and always
kept a modest profile in his personal life.

<https://arstechnica.com/gadgets/2024/10/ward-christensen-bbs-inventor-and-architect-of-our-online-age-dies-at-age-78/>