ZTerm
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| Developer(s) | David Alverson |
|---|---|
| Initial release | 19 April 1994 |
| Stable release |
1.2 / 18 July 2011
|
| Platform | Macintosh |
| Type | terminal emulator |
| License | $20 shareware |
| Website | www |
ZTerm is a shareware terminal emulator for Apple Macintosh computer systems. It was introduced in 1992 running on Macintosh Operating System 7 and has been updated to run on the latest version of Mac OS X. Its name comes from its use of the Zmodem , which ZTerm implemented in a particularly high-performance package. Contrary to the OS X built-in Terminal, which only communicates with other programs, ZTerm only communicates with hardware serial ports.
When it was first introduced, ZTerm was one of the highest performing terminal emulators on the Mac, both in terms of basic text display as well as file transfer performance. Its hardware support included carrier detect (CD), hardware hangup (DTR) and hardware flow control, as well as speeds up to 119,200 bit/s on those machines that supported it. These features were not universally supported in Mac hardware, so many emulators simply ignored them. Even if these speeds were offered, most Mac terminals of the era had trouble keeping up with faster modems, especially 9600 bit/s and faster.
ZTerm supported one of the widest variety of available on the Mac, including a full implementation of ZModem, YModem, YModem-G, almost all of the common varieties of XModem with different packet sizes and error correction methods, and even the rare but useful for use on Compuserve. ZTerm also supported auto-starting transfers from ZModem and B, where commands from the host automatically triggered transfers from the client.
Additionally, ZTerm included a complete PC graphics character set and ANSI escape codes, including color. This made it one of the few terminals on the Mac that properly displayed ASCII art, and allowed full interaction with PC-based bulletin board systems (BBS) that used these features extensively. ZTerm also allowed the mouse to be used to position the cursor, sending a stream of ANSI codes to move it to the clicked location.
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