Computer History Notes - Herong's Tutorial Notes - v3.13, by Herong Yang
What Is Telnet
This section provides a quick introduction of Telnet application that allows you to log into a remote computer over the Internet as a text based terminal.
What Is Telnet? - Telnet is an Internet application that allows you to log into a remote computer over the Internet as a text based terminal.
The Telnet protocol that supports the Telnet application was actually developed on physical networks before the Internet age. The Telnet protocol was proposed by C. Stephen Carr in 1969 in "RFC 15 - Network Subsystem for Time Sharing Hosts" at https://tools.ietf.org/html/rfc15.
The diagram below from the above RFC shows how a user from University of Utah can establish a terminal access to the computer host at Standford Research Institute:
Teletype Terminal ______ ________ _________ | | ______ ______ | | | | | USER | | | | | |SERVING | | |-----| HOST |----| |---//---| |---| HOST | |_________| | A | | | | | | B | |______| |______| |______| |________| University Stanford of Utah Research Institute Figure 1: User accesses distant serving HOST via shunt subsystem in his own Host computer.
As of today, Telnet is still supported on many computer systems. Here is an example of Telnet session (Source: stackexchange.com):
Table of Contents
2002 - .NET Framework Developed by Microsoft
1995 - PHP: Hypertext Preprocessor Created by Rasmus Lerdorf
1995 - Java Language Developed by Sun Microsystems
1991 - WWW (World Wide Web) Developed by Tim Berners-Lee
1991 - Gopher Protocol Created by a University of Minnesota Team
1984 - X Window System Developed a MIT Team
1984 - Macintosh Developed by Apple Inc.
1983 - "Sendmail" Mail Transfer Agent Developed by Eric Allman
1979 - The Tcsh (TENEX C Shell) Developed by Ken Greer
1978 - Bash (Bourne-Again Shell) Developed by Brian Fox
1978 - The C Shell Developed by Bill Joy
1977 - The Bourne Shell Developed by Stephen Bourne
1977 - Apple II Designed by Steve Jobs and Steve Wozniak
1976 - vi Text Editor Developed by Bill Joy
►1974 - Internet by Vinton Cerf
What Is FTP (File Transfer Protocol)
1972 - C Language Developed by Dennis Ritchie
1971 - FTP Protocol Created by Abhay Bhushan
1970 - UNIX Operating System Developed by AT&T Bell Labs