Session Profiles → Emulations

Todays most widely used emulation in the Unix/Linux world. The emulation supports most of the available pc-keys as well as color, international characters and it also offers a couple of other advanced features. It should be chosen whenever possible. On the host side it should be known as TERM=xterm

See also Options for the VT/Xterm/ANSI Emulations.

The ATT4410 is essentially a VT220 emulation, where only a few keys send different codes. It is mainly used to access and configure AT&T switchboards.

The ANSI Emulation is mostly used in BBSs. It is main feature is that it uses the IBM-PC graphic character set and allows to display text in different colors. For compatibility with the FIDO ANSI-BBS standard, it also supports all VT102 control codes. Under Unix it is commonly referred to as TERM=pcansi

See also Options for the VT/Xterm/ANSI Emulations.

A slightly different implementation that uses different codes for the extended keys (F-keys, Ins, End, etc.). Unix systems that support this emulation usually know it as TERM=scoansi

An emulation mainly used on the ancient FIDO BBS network.

The 3270 family of emulations is used with IBM mainframes. The key definitions are listed in 3270 keyboard mapping. ZOC does support 3270 extended color coding and also offers a range of predefined color styles for non-extended sessions. You can also find session profile named (OPTIONS\Settings_3270.zoc) that provides user buttons for some common and some unmapped keys.

Please see the description of the individual TN3270 emulation options.

The 5250 emulation is used with IBM iSeries eServer (former AS/400). The emulation needs to be used with Telnet connections (this combination is commonly known as TN5250). The key definitions are described in 5250 keyboard mapping. You can also map other special keys to other places on the keyboard or to user buttons by using emulation dependent key names.

Your choice of emulation when dealing with Linux hosts. The emulation supports most of the available pc-keys as well as on screen colors. On the host side set TERM=linux

Also available is an emulation for use with the QNX 4.2x real time operating system. This emulation was originally developed by Ingenieurbuero Jurk in Weisenheim and Mr. Jurk was kind enough to provide us with the source code for general inclusion with ZOC.

This emulation is the preferred emulation on Sun Solaris (Common Desktop Environment) machines. It is based on VT220 but offers color support together with f-keys and extended keys. Set your Solaris machine to TERM=dtterm

This emulates a teletype style output. All characters are printed and no further functions exist, except CR, LF and TAB. In a way, this is a non-emulation.

This is a group of older terminal emulations (TVI9xx). TVI terminals are is still used in some specific areas, but they should only be chosen, if your host explicitly requires any of them.

VT102 is mostly used in Unix environments and is compatible with the (slightly inferior) VT100 standard. VT102 is a simple all purpose choice. It does not support colors or extended keys except F1-F4, so you should try to use vt220 instead. Under Unix it is known as TERM=vt100 or TERM=vt102

See also Options for the VT/Xterm/ANSI Emulations.

VT220 Terminals are a major improvement over VT102 and a good starting point if you not know what emulation to choose.

VT220 supports most of the keys found on a PC keyboard (please check VTxxx keyboard mapping) and it supports national character sets in a consistent way. However there is no official support for colors. Almost all Unix systems should support his emulation if you set TERM=vt220 on the shell, although most systems today are optimized for the xterm emulation.

See also Options for the VT/Xterm/ANSI Emulations.

These terminals are further improvements over the VT220 although most of the improvements are not really relevant to Unix/Linux shells. They will be the emulation of choice for VAX/OpenVMS systems though.

See also Options for the VT/Xterm/ANSI Emulations.

VT52 is a very old standard from DEC and is hardly used anymore. It is not upward compatible with VT100, VT102 and VT220.

This is an ancient terminal emulation, but it is still used in some areas. It should only be chosen, if your host explicitly requires it.

With Telnet and SSH connection, ZOC will report your current emulation to the remote host, which usually will store it in the TERM= environment variable for use with termcaps/terminfo applications. All ZOC emulations have a built in TERM string (as indicated in the above list) that will work on almost all such systems. However, if you need Telnet or SSH to report a custom term type identifier to the remote host, you can enter it here. If you are not sure what this means, please leave this option off.

See also: ENQ option in Session Profile→Terminal