Live briefing

Everything about ZMODEM

File transfer protocol

ZMODEM is an inline file transfer protocol developed by Chuck Forsberg in 1986, in a project funded by Telenet in order to improve file transfers on their X.25 network. In addition to dramatically improved performance compared to older protocols, ZMODEM offered restartable transfers, auto-start by the sender, an expanded 32-bit CRC, and control character quoting supporting 8-bit clean transfers, allowing it to be used on networks that would not pass control characters. Wikipedia →

🧭 Start here: a 6-step reading path

Read the overview: ZMODEMA 5-minute orientation
Pick up a classic book: Data Communications and NetworkingThe most-reprinted book on the subject
Go sideways: YMODEMA closely related topic
Go sideways: MEGAlinkA closely related topic

📖 Definitions

No dictionary entry for this exact phrase.

🗂️ The subject at a glance

🏆 Landmark papers (most cited)

No matching papers found.

📚 Books worth reading

Data Communications and NetworkingBehrouz A. Forouzan, Catherine Ann Coombs · 2000

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics

YMODEM YMODEM is a file transfer protocol used between microcomputers connected together using modems. It was primarily used to transfer files to and from bulletin…
MEGAlink MEGAlink is a file transfer protocol for modem-equipped microcomputers written by Paul Meiners in 1987. Like many protocols of the era, MEGAlink is an…
XMODEM 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…
SEAlink SEAlink is a file transfer protocol that is backward compatible with XMODEM but features a sliding window system for improved throughput. SEAlink was written…
Janus (protocol) Janus is a file transfer protocol for use on bulletin board systems (BBSs). It has the relatively rare feature that it is fully bidirectional, allowing…
Protocol spoofing Protocol spoofing is used in data communications to improve performance in situations where an existing protocol is inadequate, for example due to long…
Microcom Networking Protocol The Microcom Networking Protocols, almost always shortened to MNP, is a family of error-correcting protocols commonly used on early high-speed (2400 bit/s…
ZMax ZMax is a file transfer protocol developed in 1990-1991 by Mike Bryeans (Micro TECH Systems) who also developed TMODEM. Zmax is designed to replace ZMODEM…