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Relay Gold supports asynchronous serial communication, TYMNET and TELENET networks, satellite connections, and IBM 3270 emulation boards. It uses a data compression algorithm licensed from Adaptive Computer Technologies to provide file transfer speeds up to four times the effective speed of the modem with which it is used.
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 ...
Telenet was an American commercial packet-switched network which went into service in 1975. [ 1 ] [ 2 ] It was the first FCC-licensed public data network in the United States. [ 3 ] Various commercial and government interests paid monthly fees for dedicated lines connecting their computers and local networks to this backbone network .
It is a successor of Qmodem, by Mustang Software, Inc. Several versions had been released for MS-DOS and for Microsoft Windows with the final version being QmodemPro 2.1 for Windows 95 and Windows NT which was released July 7, 1997.
Hayes Microcomputer Products was a US-based manufacturer of modems.The company is known for the Smartmodem, which introduced a control language for operating the functions of the modem via the serial interface, in contrast to manual operation with front-panel switches.
Telenet was incorporated in 1973 and started operations in 1975. It was founded by Bolt Beranek & Newman with Larry Roberts as CEO as a means of making packet switching technology public. Telenet initially used a proprietary Virtual circuit host interface, but changed it to X.25 and the terminal interface to X.29 after their standardization in ...
The Bell 212A scheme was the most common standard used for 1200 bit/s transmission on US data networks such as CompuServe during the 1980s and 1990s, when dial-up access to time-sharing services was the norm, and, starting in 1989, dial-up Internet access.
A PCI softmodem (left) next to a conventional ISA hardware modem (right). A software modem, commonly referred to as a softmodem, is a modem with minimal hardware that uses software running on the host computer, and the computer's resources (especially the central processing unit, random access memory, and sometimes audio processing), in place of the hardware in a conventional modem.