As the original 3270 series terminals were connected to the host computer using coaxial cable, emulators required coax adapter cards to be installed in the PC. Today, many emulators communicate with the mainframe computer through the TN3270 variant of the Telnet protocol common on TCP/IP networks including the Internet, so special hardware is no longer required.
In 1983, IBM marketed the IBM 3270 PC, a bundled package including a PC, 3270 emulation software and coax interface card. 3270 emulators are also available from many third-party vendors like Attachmate and Ericom. Some solutions permitted a coax interface to be shared by workstations in a LAN.
- Irma board
- Terminal emulator
- Systems Network Architecture (SNA)
- Synchronous Data Link Control (SDLC)
- TN3270 Plus
- x3270: open-source, multi-platform TN3270 emulator
- TN3270: emulator for Linux, Windows, Mac OS X
- Virtel superior terminal emulation for mainframe
- QWS3270 PLUS, a TN3270 emulator by Jolly Giant Software
- QWS3270 Secure, a TN3270E emulator by Jolly Giant Software
- Vista tn3270, a TN3270 emulator by Tom Brennan Software