Skip to content
EntityQ2143329· pop 10· linked from 67 articles

XMODEM is a simple file transfer protocol developed as a quick hack by Ward Christensen for use in his 1977 MODEM.ASM terminal program. It allowed users to transmit files between their computers when both sides used MODEM. Keith Petersen made a minor update to always turn on "quiet mode", and called the result XMODEM.

Key facts

Networking protocol.title
XMODEM
Networking protocol.purpose
file transfer protocol
Networking protocol.developer
Ward Christensen
Networking protocol.influenced
YMODEM, many others
Networking protocol.hardware
modems

via Wikipedia infobox

Wikidata facts

Show 2 more facts
inception
1977-00-00
discoverer or inventor
Ward Christensen
Sources (1)

via Wikidata · CC0

Available in 10 languages

via Wikidata sitelinks · CC0