ZBasic (1987) 1 DOS

ZBasic, from Zedcor, Inc., is a cross platform Basic compiler. Versions exist for MS-DOS, Apple II, Macintosh, CP/M and TRS-80.

• 4.x

Zenith MS-DOS Programmer's Utility Pack (1984) 5 DOS

The Zenith Programmer's Utility Pack for MS-DOS contains source code and compiler utilities needed for building an MS-DOS BIOS (IO.SYS file) for use with the Zenith Z-100 (not IBM hardware compatible), the Zenith Z-100 PC (IBM hardware compatible), and the Zenith Z-100 PC running in Z-100 compatibility mode.

• 2
• 3

Zenith Z-200 Diagnostics (1986) 0 DOS

These are a set of diagnostic programs for Heath/Zenith Z-200 computers.

• 1

Zenith Z-200 GW-Basic (1986) 0 DOS

This is an OEM disk of GW-Basic bundled with Zenith computers.

• 3

Zortech C++ (1989) 6 DOS

The Zortech C++ Compiler was a high performance compiler for MS-DOS, OS/2, and Windows that implemented the AT&T C++ 2.0 specifications. It competed strongly against Microsoft C and Watcom C. It later became the Symantec C++ compiler. It was also the first commercial compiler that natively supported Microsoft Windows.

• 2.x
• 3.x