A/UX (1988) 6 Unix

Apple A/UX is an early port of Unix to Apple's 68k based Macintosh platform. It features a full Unix system with a Mac OS GUI and the ability to run classic Mac OS applications.

• 1.x

AIX (1986) 4 Unix

AIX (Advanced Interactive eXecutive) is a Unix port originally developed by IBM and released in 1986 for the IBM RT 6150, a RISC based desktop workstation. It was later ported to the RS/6000, POWER, and PowerPC platforms as well as IBM System i, System/370 mainframes, and the PS/2 personal computers, and the Apple Network Server.

• AIX PS/2
• 3.x
• 4.1.x
• 4.3.x
• 5.1

AT&T System V Unix (1991) 16 Unix

AT&T UNIX System V ("System Five"), first released in 1983, is significant as it was one of the first commercial versions of the Unix operating system. It was the result of much collaboration between vendors and became the core basis for many other operating systems including Xenix, AIX, UnixWare, Solaris, and HP-UX.

• 2.x

Citrix Multiuser (1991) 2 OS2

Citrix Multiuser is a customized version of Microsoft OS/2 1.21 that turns it in to a real multi-user operating system. With Citrix Multiuser, users can connect and simultaneously run character cell based applications from remote serial terminals. To prevent users from interfering with each other, it adds security permissions to devices and files. It can use multi-port serial port boards like the Digiboard, or any serial device that has OS/2 1.21 drivers. based application or DOS executables, and programs can not use graphics modes. It also does not have support for networking. separation, which was an almost instant fatal blow as Citrix was licensing OS/2 code through Microsoft. making MS-DOS multi-user until eventually they released a Windows NT based version.

• 1.0
• 2.0

Citrix Multiuser Link (1991) 0 Communications DOS OS2

Multiuser Link is a telecommunications program that Connects a PC running DOS or OS/2 to a Citrix Multiuser system via standard RS-232C serial directly or with a modem.

• 1.0

DELL Unix (1992) 0 Unix

Dell Unix, first introduced in 1989, was an adaptation of AT&T Unix intended for Dell hardware. Although Dell Unix received much praise, Dell found they could not reasonably support it on non-Dell hardware, as many customers wanted, and in 1993 discontinued it.

• 4.0

Digital UNIX (1995) 4 Unix

Formerly OSF/1, in 1994 after the Open Software Foundation (run by DEC, IBM, and HP) ceased involvement, Digital Equipment Corporation renamed the OS to "Digital UNIX". In 1998, DEC was bought out by Compaq and the product was again renamed, to Tru64 UNIX.

• 3.2B
• 3.2G
• 4.0B
• 4.0D
• 4.0E

FoxBASE (1987) 9 Database DOS Unix MacOS

FoxBASE, a relational database from Fox Software, started off in 1984 as a clone of dBase II that boasted many speed improvements. FoxBASE+ adds feature parity and compatibility with dBase III Plus. It was later aquired by Microsoft and became FoxPro

• Plus 1.x
• Plus 2.x

FoxPro (1990) 49 DOS Windows Unix MacOS

FoxPro, originally from Fox Software and later Microsoft, is a relational database that clones the functionality of dBase IV, but offers vast speed improvements. It was based on Fox Software's FoxBASE (a dBASE II clone) and FoxBASE+ (a dBase III Plus clone). It adds a new mac-like user interface that was first developed for FoxBASE+/Mac.

• 2.6

HP-UX (1992) 1 Unix

HP-UX is a Unix variant based off of System III, later System V Unix. Released in 1984, the initial version of HP-UX supported the Motorola 68k processor family, specifically the HP 9807A, the "HP Integral PC". This OS is still updated, with its latest being version 11i. Platforms that HP-UX have ran on were the Motorola 68k, RISC, HP FOCUS, and the Itanium family of Intel processors. HP-UX was the first UNIX to provide access control lists (acls), logical volumes, features that are currently supported by newer mainstream Operating Systems. HP-UX versions before 11.0 are not deemed as being Y2k-compliant by HP.

• 9
• 10

IBM CAD/3X (1993) 1 Graphics OS2

IBM CAD/3X is an entry level, easy to use, 2D cad program with versions for both DOS and OS/2 1.30.

• 1

Informix (1983) 0 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

Intel Unix System V (1990) 1 Unix

Intel Unix System V was a rather uncommon Unix variant developed and distributed by Intel, for IBM PC compatible hardware. It was considered "plain vanilla" compared to other distributions, adding little beyond AT&T's codebase.

• 2.x

Internet Explorer (1995) 130 Web Browser Windows Unix MacOS Mac OS X

Microsoft Internet Explorer is a web browser application created by Microsoft primarily for Microsoft Windows. It was initially based on Spyglass Mosaic. At various points, Internet Explorer was also available for MacOS, Solaris, and HP-UX.

• 4
• 5

IRIX (1998) 41 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
• 6.5
• 6.5.9
• Patches
• 6.5.21
• 6.5.22

Micrografx Designer (1988) 5 Graphics Publishing Windows OS2

Micrografx Designer, originally released as IN-A-VISON for Windows 1.x, is a vector based drawing and design program. It features ease of use, multiple layers, and dimensioning. Micrografx also sold large libraries of clip art. It competed against Corel Draw.

• 2.0

Microsoft Excel (1985) 31 Spreadsheet OS2 MacOS Windows

Excel, from Microsoft, is a powerful spreadsheet application for Mac, Windows, and OS/2. Excel was first released for the Mac. When it was ported to Windows 2.x, they started at version "2.0" to one up current Mac version. There was never a DOS version. Instead, DOS and 8-bit platforms used the older Microsoft Multiplan. Excel was later bundled as part of Microsoft Office

• 2.2
• 3.x

NeXTStep (1987) 36 Unix

NeXTSTEP, from NeXT Computers headed by Steve Jobs, is a Unix based operating system designed to run on m68K NeXT workstations. It later became the basis for OS X, with APIs and concepts preserved today.

• 0.x
• 1.x
• 2.x
• 3.x
• 4.x

OS/2 1.x (1986) 21 OS2

OS/2 was originally a joint effort between IBM and Microsoft. It grew out of efforts to create a Multitasking MS-DOS. It was intended to be the future OS for IBM's new PS/2 series. At release it competed against Microsoft's Windows GUI shell, but most users continued to use DOS. OS/2 1.x was used as the basis for Citrix Multiuser | 1.x | 2.x | 3.x | 4.x | All |

• Pre-Release
• 1.0
• 1.1
• 1.2
• 1.3

OS/2 3.x (1994) 46 OS2

OS/2 3.0, marketed under the name "OS/2 Warp", reduced memory usage over OS/2 2.x and included Internet access software. The "Connect" version includes Ethernet networking and peer-to-peer file sharing. The "Blue Spine" editions bundle the Windows 3.1 files so no additional software is needed to use the Win-OS/2 subsystem. It was followed up by OS/2 Warp 4. | 1.x | 2.x | 3.x | 4.x | All |

• 3.0
• 3.0 PowerPC Edition

PC/IX (1984) 2 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
• 2.x
• 4.x

QNX (1982) 6 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
• 1989 Demo
• 2.2
• 4.2
• 1.44mb Demo

Tru64 UNIX (1999) 13 Unix

Tru64, formerly Digital UNIX, formerly OSF/1 was DEC's UNIX product for their line of Alpha based systems. After DEC's acquisition by Compaq, it was renamed to Tru64. DEC previously had sold a BSD derivative named Ultrix for Vax and MIPS based systems. Their new UNIX on Alpha was meant to counter AT&T and Sun's SVR4 Unix. Tru64 / DIGITAL UNIX / OSF/1 is somewhat interesting in that it used portions of the Mach microkernel and BSD kernel and userland in a manner not entirely unlike NeXTSTEP or Mac OS X. Like OS X, Tru64 itself is not a microkernel system but uses Mach code in its kernel to implement threading and scheduling and possibly other features.

• 5.0
• 5.1B

Ultrix (1989) 3 Unix

ULTRIX was a UNIX clone designed by DEC for the PDP-11 and VAX.

• 3

UnixWare (1992) 5 Unix

Unixware is a variant of Unix from Novell that incorporated its Netware features. It was later absorbed and merged with SCO Unix, which took on the Unixware name.

• 1.x
• 2.x