NCSA Telnet

NCSA Telnet is an implementation of the Telnet protocol created at the University of Illinois at Urbana-Champaign National Center for Supercomputing Applications in 1986 and continuously developed until 1995.wikipedia
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National Center for Supercomputing Applications

NCSANational Center for Supercomputer Applications
NCSA Telnet is an implementation of the Telnet protocol created at the University of Illinois at Urbana-Champaign National Center for Supercomputing Applications in 1986 and continuously developed until 1995.
NCSA quickly came to the attention of the worldwide scientific community with the release of NCSA Telnet in 1986.

University of Illinois at Urbana–Champaign

University of IllinoisUniversity of Illinois at Urbana-ChampaignIllinois
NCSA Telnet is an implementation of the Telnet protocol created at the University of Illinois at Urbana-Champaign National Center for Supercomputing Applications in 1986 and continuously developed until 1995.
The university hosts the National Center for Supercomputing Applications (NCSA), which created Mosaic, the first graphical Web browser, the foundation upon which the former Netscape was based on and Mozilla Firefox and Microsoft Internet Explorer are based, the Apache HTTP server, and NCSA Telnet.

Telnet

telnetdteleportingTELNET client
NCSA Telnet is an implementation of the Telnet protocol created at the University of Illinois at Urbana-Champaign National Center for Supercomputing Applications in 1986 and continuously developed until 1995.

InterCon Systems Corporation

InterCon
In 1988, InterCon was pursuing two product lines, TCP/Connect (based originally on NCSA Telnet), and an email product.

Macintosh operating systems

Mac OSMacMacintosh
The initial implementation ran under Mac OS and Microsoft MS-DOS and provided basic DEC VT102 terminal emulation as well as support for multiple simultaneous connections and an internal FTP server.

MS-DOS

DOSMS-DOS 5.0MS-DOS 6.0
The initial implementation ran under Mac OS and Microsoft MS-DOS and provided basic DEC VT102 terminal emulation as well as support for multiple simultaneous connections and an internal FTP server.

VT100

VT102DEC VT100VT-100
The initial implementation ran under Mac OS and Microsoft MS-DOS and provided basic DEC VT102 terminal emulation as well as support for multiple simultaneous connections and an internal FTP server.

File Transfer Protocol

FTPFTP serverFTP client
The initial implementation ran under Mac OS and Microsoft MS-DOS and provided basic DEC VT102 terminal emulation as well as support for multiple simultaneous connections and an internal FTP server.

Tektronix 4010

Tektronix 401440104014
Support for Tektronix 4010/4014 vector terminal emulation and a protocol for downloading and viewing raster images were added.

Sun Microsystems

SunSun Microsystems, Inc.Sun workstation
In 1987, a short-lived version for Sun Microsystems SunOS was released.

SunOS

Sun OSSunits operating system
In 1987, a short-lived version for Sun Microsystems SunOS was released.

Macintosh

Apple MacintoshMacMacs
Although the PC version of NCSA Telnet lost popularity once Microsoft Windows was in widespread use, the Macintosh version remained in use throughout the 1990s as a basic tool of connectivity in academic and commercial installations.

Internet protocol suite

TCP/IPIP networkTCP/IP stack
NCSA Telnet originally used a built-in TCP/IP protocol stack to communicate over the network.

Application programming interface

APIAPIsapplication programming interfaces
As standard APIs became available for network communication, the program was adapted to use those methods, most notably Apple's MacTCP.

MacTCP

As standard APIs became available for network communication, the program was adapted to use those methods, most notably Apple's MacTCP.

Open-source software

open sourceopen-sourceopen source software
NCSA Telnet was released as open source software (although the term had yet to be coined at the time) and as such spawned a number of spin-off products including

Department of Computer Science, University of Illinois at Urbana–Champaign

Department of Computer ScienceComputer ScienceDepartment of Computer Science, University of Illinois at Urbana-Champaign
NCSA in 1986 released NCSA Telnet and in 1993 it released the Mosaic web browser.

Minnesota Internet Users Essential Tool

Minuet
At that time, Internet software for the PC was immature — the only programs available were NCSA Telnet and NCSA FTP.

University of Illinois system

University of Illinoisthe University of IllinoisUniversity of Illinois Board of Trustees
In addition, in 1987, NCSA created NCSA Telnet, a program which permitted users access to the supercomputer's resources remotely.