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ZMODEM, the Glossary

Index ZMODEM

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.[1]

Table of Contents

  1. 22 relations: Backward compatibility, Bulletin board system, Checksum, Chuck Forsberg, Comparison of file transfer protocols, Cyclic redundancy check, Escape character, Kermit (protocol), Latency (engineering), Modem, Network throughput, Project, Run-length encoding, Sliding window protocol, Synchronet, Telebit, Telenet, USRobotics, X.25, XMODEM, YMODEM, 8-bit clean.

  2. BBS file transfer protocols
  3. Computer-related introductions in 1986

Backward compatibility

In telecommunications and computing, backward compatibility (or backwards compatibility) is a property of an operating system, software, real-world product, or technology that allows for interoperability with an older legacy system, or with input designed for such a system.

See ZMODEM and Backward compatibility

Bulletin board system

A bulletin board system (BBS), also called a computer bulletin board service (CBBS), was a computer server running software that allowed users to connect to the system using a terminal program.

See ZMODEM and Bulletin board system

Checksum

A checksum is a small-sized block of data derived from another block of digital data for the purpose of detecting errors that may have been introduced during its transmission or storage.

See ZMODEM and Checksum

Chuck Forsberg

Charles Alton "Chuck" Forsberg (May 6, 1944 – September 24, 2015) developed two data transmission protocols popular in the 1990s, for uploading and downloading files from dial-up bulletin board systems.

See ZMODEM and Chuck Forsberg

Comparison of file transfer protocols

This article lists communication protocols that are designed for file transfer over a telecommunications network.

See ZMODEM and Comparison of file transfer protocols

Cyclic redundancy check

A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to digital data.

See ZMODEM and Cyclic redundancy check

Escape character

In computing and telecommunication, an escape character is a character that invokes an alternative interpretation on the following characters in a character sequence.

See ZMODEM and Escape character

Kermit (protocol)

Kermit is a computer file transfer and management protocol and a set of communications software tools primarily used in the early years of personal computing in the 1980s. ZMODEM and Kermit (protocol) are BBS file transfer protocols.

See ZMODEM and Kermit (protocol)

Latency (engineering)

Latency, from a general point of view, is a time delay between the cause and the effect of some physical change in the system being observed.

See ZMODEM and Latency (engineering)

Modem

A modulator-demodulator or most commonly referred to as modem is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio.

See ZMODEM and Modem

Network throughput

Network throughput (or just throughput, when in context) refers to the rate of message delivery over a communication channel, such as Ethernet or packet radio, in a communication network.

See ZMODEM and Network throughput

Project

A project is a type of assignment, typically involving research or design, that is carefully planned to achieve a specific objective.

See ZMODEM and Project

Run-length encoding

Run-length encoding (RLE) is a form of lossless data compression in which runs of data (consecutive occurrences of the same data value) are stored as a single occurrence of that data value and a count of its consecutive occurrences, rather than as the original run.

See ZMODEM and Run-length encoding

Sliding window protocol

A sliding window protocol is a feature of packet-based data transmission protocols.

See ZMODEM and Sliding window protocol

Synchronet

Synchronet is a multiplatform BBS software package, with current ports for Microsoft Windows, Linux, and BSD variants.

See ZMODEM and Synchronet

Telebit

Telebit Corporation was a US-based modem manufacturer, known for their TrailBlazer series of high-speed modems.

See ZMODEM and Telebit

Telenet

Telenet was an American commercial packet-switched network which went into service in 1975.

See ZMODEM and Telenet

USRobotics

U.S. Robotics Corporation, often called USR, is a company that produces USRobotics computer modems and related products.

See ZMODEM and USRobotics

X.25

X.25 is an ITU-T standard protocol suite for packet-switched data communication in wide area networks (WAN).

See ZMODEM and X.25

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. ZMODEM and XMODEM are BBS file transfer protocols.

See ZMODEM and XMODEM

YMODEM

YMODEM is a file transfer protocol used between microcomputers connected together using modems. ZMODEM and YMODEM are BBS file transfer protocols.

See ZMODEM and YMODEM

8-bit clean

8-bit clean is an attribute of computer systems, communication channels, and other devices and software, that process 8-bit character encodings without treating any byte as an in-band control code.

See ZMODEM and 8-bit clean

See also

BBS file transfer protocols

References

[1] https://en.wikipedia.org/wiki/ZMODEM

Also known as Z-MODEM, ZedZap.