Informix (1983) 1 Database Unix

Informix is a powerful high-speed high-end multi-user relational database program originally developed for Unix and Xenix in the C programming language. It includes form and report building tools.

• 3.x

IRIX (1998) 39 Unix

IRIX was a operating system created by SGI (Silicon Graphics Inc) that was based off of System V Unix. In addition, this OS had additional BSD elements. It's initial release was in 1988 and was designed to on MIPS processors. IRIX machines were typically used for visual effects in the entertainment industry and in the scientific community for several years after the fall of Amiga in the early 90s.

• 3.x
• 4.x

Microsoft BASIC (1981) 62 Unix

Although Microsoft did not invent BASIC, their founding product was a BASIC interpreter for the Altair computer. The descendants below includes Microsoft's BASIC-80 (MBASIC), BASIC-86 (pre-GWBasic), BASIC for Mac, BASIC Compiler 86/88, Basic Compiler for Mac, and Professional Development System 7.x. IBM Personal Computer Basic Compiler, GW-BASIC, QuickBasic, and Visual Basic are listed separately.

• 5.x for Xenix

PC/IX (1984) 1 Unix

Interactive UNIX, also known as PC/IX, and 386/ix were UNIX derivitives created for the IBM PC in the early 1980's. PC/IX was the first UNIX sold directly from IBM, but not the first UNIX sold for the IBM PC. (Venix/86 was the first.) The original PC/IX software sold was on 19 floppy disks and sold for 900 dollars. In 1985, 386/ix was introduced, later named Interactive UNIX. The last version released was 4.1.1 in July 1998 and was supported up until 2006.

• 1.0

QNX (1982) 40 Unix

QNX is a compact Unix-like real-time operating system that was originally designed for the IBM PC and later used in embedded devices. The versions here are for IBM PC compatibles.

• 1.2

SunOS (1985) 23 Unix

SunOS was a UNIX based OS derived from BSD. Initially released in 1982, it was the standard OS on Sun Machines at that time. Platforms supported by this OS were the Motorola 68000, the Sun 386i, and the SPARC. SunOS machines are still actually in use today powering dams and bread factories.

• 2.x
• 3.x

Unify (1984) 1 Database Unix

Unify is a relational database for Unix based systems. There was also a DOS version.

• 3.1

Venix (1984) 2 Unix

First unveiled in 1983 as Venix/86 for 8088/8086 CPUs, Venix is a compact lightweight multi-user multi-tasking operating system for IBM PC compatible computers. It was created by VenturCom and published through Unisource. Venix is notable for being the first available adaptation of UNIX for IBM PCs, beating IBM to the UNIX market. It was initially based off of UNIX Version 7.

• 86 2.x

Xenix (1984) 51 Unix

Xenix was the variant of UNIX originally published by Microsoft, later sold to SCO. It added a variety of technical enhancements over System V Unix, including a menu-driven business shell. It was ported to many different platforms from a PDP-11 including the Altos 8600 (First x86 port), IBM PC, Intel System 86, TRS-80 Model 16, SCP Gazelle II, and Apple Lisa. The Xenix Software Development System, Microsoft Multiplan 2.x and Microsoft Multiplan 3.x, Microsoft Word 3.0 and Microsoft Word 5.x, and FoxBase Plus 1.00

• IBM PC 1.00
• Tandy 16/6000 3.x
• 8086

Xenix Software Development System (1983) 5 Unix

The Xenix Development System is a set of compiler and code tools for the Xenix operating system.

• 1.x (TRS)
• 1.00 (IBM)
• 2.00 (IBM)