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.

• 4.x

Norton Anti-Virus (1990) 0 Utility MacOS

Originally written by Symantec and sold as Symantec Antivrus for Macintosh, it became part of the "Norton" branded products sold by Symantec after they acquired Peter Norton Computing. Norton Anti-Virus became a popular product on DOS, Windows, and Macintosh (SAM was renamed to NAV in 1998) and battled the then-new threat of malicious software. In 2015, Symantec unified their security product lineup under the single "Norton Security" product. It was also bundled with Norton SystemWorks.

• 6.x
• 7.x
• 8.x
• 9.x

Norton Commander (1986) 79 Utility DOS

Norton Commander is a MS-DOS based file shell that was widely popular due to it's two column design. You could easily copy and move files between one folder or another, execute DOS commands and more. It competed against many other file managers including Gazelle Q-DOS and Xtree

• 4.x
• 5.x
• 5.5x

Norton SystemWorks (1998) 1 Utility MacOS

Norton SystemWorks was a utility software suite by Symantec Corp. It integrates three of Symantec's most popular products – Norton Utilities, Norton CrashGuard and Norton AntiVirus – into one program designed to simplify solving common PC issues. Backup software was added later to high-end editions. SystemWorks was innovative in that it combined several applications into an all-in-one software for managing computer health, thus saving significant costs and time often spent on using different unrelated programs.

• 1.x

Norton Utilities (1983) 19 Utility MacOS DOS

The Norton Utilities is a suite of disk and system utilities designed to enhance system performance and stability. It started off as a set of disk utilities written by Peter Norton, and later was sold by Symantec. It competed against Central Point PC Tools and the Mace Utilities. In 2003, Norton Utilities was merged with Norton SystemWorks, but later split back out.

• 3.x for Mac
• 8.0
• 4.x for Mac
• 5.0 for Mac
• 6.0 for Mac

Official Guide to Netscape Navigator (1995) 0 Education Windows MacOS

The Official Guide to Netscape Navigator, from Personal Training Systems, is an interactive training tool for teaching new users the ins and outs of using Netscape Navigator to access information on the Internet.

• 1.x

Ontrack Disk Manager (1987) 1 DOS

Ontrack Disk Manager is a BIOS overlay and partitioning tool that helps you overcome various BIOS hard drive size limits. It was commonly bundled with hard drives.

• 5.x
• 6.x
• 7.x
• 8.x
• 9.x

Ontrack Drive Rocket (1994) 0 DOS Windows

Drive Rocket is an IDE driver for DOS/Windows 3.1 that bypasses the BIOS and makes use of newer IDE features to accelerate hard disk transfer speeds.

• 1.0

Open Genera (1993) 0 Unix

Genera is a commercial operating system and integrated development environment for Lisp machines developed by Symbolics. It is essentially a fork of an earlier operating system originating on the Massachusetts Institute of Technology (MIT) AI Lab's Lisp machines which Symbolics had used in common with Lisp Machines, Inc. (LMI), and Texas Instruments (TI). Genera is also sold by Symbolics as Open Genera, which runs Genera on computers based on a Digital Equipment Corporation (DEC) Alpha processor using Tru64 UNIX. the programming language Lisp. software using a mix of programming styles with extensive support for object-oriented programming.

• 1.0

OS/400 (1994) 0 Other

OS/400 (now known as IBM i, previously i5/OS) is the operating system of the AS/400 (now Power Systems, previously System i) series of minicomputers by IBM. It is the replacement for CPF for the System/38 and SSP for the System/36. In addition to a consistent programming environment and a user-friendly interface, it features advanced features not seen in other platforms such as tagged memory, single-level storage, is exclusively written in managed languages.

• V3
• V4

Packard Bell Navigator (1993) 7 Utility Other DOS

Packard Bell Navigator is an alternate user interface that replaces the Windows 3.1 Program Manager shell. It presents the content of your computer as a series of rooms.

• 3.5

PageMaker (1987) 27 Publishing Windows MacOS

Aldus PageMaker, later Adobe PageMaker, is a desktop publishing program for Mac and Windows. First released in 1985, PageMaker was the first desktop publishing program for the Macintosh. It was followed over a year later with the release of 1.0 for the IBM PC. The PC version was a notable application as it was one of the few rare applications which would run under Windows 1.x. PC PageMaker 1.0 bundled a runtime version of Windows. This enabled MS-DOS users who had not decided to buy Windows to run PageMaker. Aldus skipped version 2.0 on the PC to bring version number in sync with the 3.0 Mac product.

• 5.0

Palindrome Network Archivist (1993) 0 Server DOS

Palindrome Network Archivist is an enterprise server program to back up Novell NetWare servers onto tape drives.

• 3.0

Paradox (1985) 2 DOS

Originally released in 1985 by Ansa Software and later sold to Borland, Paradox is a high-speed relational database product that integrates with Borland's "Turbo" products. It was notable for its Query By Example feature, and its Paradox Application Language. It was popular in the late 80s and early 90s, and competed against database product such as dBase, Symantec Q&A, Foxpro, Clipper, Clarion, DataEase, R:Base, and DataFlex.

• 1.0 (Win)
• 4.5

PartitionMagic (1995) 20 Utility DOS Windows

A tool from PowerQuest, and later Symantec, that enables manipulation of partitions through its own bootable media. PartitionMagic can shrink, grow, or move partitions without the need to backup and restore files in that partition. It supported a variety of file systems, and the core DOS-based parition tool fit on a bootable 1.44mb floppy disk. It was extremely popular, and made installing or removing multiple OSes much easier.

• 2.x
• 3.x
• 4.x

PasteUp (1992) 0 Publishing Unix

PasteUp is a text processing system that can arrange columns of text, provide typographical control, draw shapes, and other effects.

• 2.5

PATHWORKS (1994) 3 Web Browser Communications DOS

PATHWORKS is a network client suite that enables PCs to communicate with VMS and Ultrix systems from Digital Equipment Corporation.

• 5.1
• 6.0

PC Tools (1985) 13 Utility DOS

PC Tools, from Central Point Software, is a system and disk utility suite similar to the Norton Utilities. Central Point also produced a similar set of tools for the Apple Macintosh known as MacTools. Central Point Backup, bundled as part of PC-Tools, was also offered as a standalone product.

• 1.0 for Windows
• 9.x

PC World PowerBase/Best Of Star-Dot-Star (1988) 0 Utility DOS

PC World PowerBase/Best Of Star-Dot-Star is a set of user contributed utilities and tips. These 5.25" floppy disks were distributed alongside the PC-World magazine as a supplement to their long running Star-Dot-Star column.

• Vol IV

PC-DOS (1981) 146 DOS

IBM PC-DOS was an IBM branded version of MS-DOS licensed from Microsoft for use on the IBM PC system. Versions of PC-DOS paralleled that of MS-DOS up until version 6.1, where PC-DOS was independently maintained by IBM up until 7.1, the last version. Although not the only OS available for the IBM PC when it came out, it quickly became popular due to its low cost in comparison to the others. Its direct competitors on the PC at the time were CP/M-86 and UCSD p-System. The major differences between PC-DOS and MS-DOS were only in terms of driver support and built in programs until version 6.1 where development diverged.

• 6.x
• 7.x
• 2000

PC-File (1984) 2 Database DOS

PC-File is a simple flat file database management program for DOS. PC-File, along with PC-Write, and PC-Talk were the first popular products sold under the "Shareware" concept.

• 7.x

PC-MOS (1987) 0 DOS

PC-MOS, released by The Software Link, was a multi-user multitasking OS that had compatibility with MS-DOS 5 applications and allowed users to connect to it via terminal.

• 5.x

PC-NFS (1994) 0 DOS

PC-NFS, from SunSelect/SunMicrosystems is an enterprise-grade NFS client and utility set for Microsoft Windows. NFS is a primitive TCP/IP network file sharing system used by Unix systems. UNIX systems, VMS minicomputers and IBM mainframes. It also include telnet and Unix printing support.

• Pro 2.x

PC/IX (1984) 0 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.

• 4.x

pcANYWHERE (1990) 10 Communications DOS Windows

pcAnywhere is a tool that enables one to remotely control another computer, or to be remotely controlled.

• 5.0 (DOS)
• 2.0 (Win)
• 8.0 (Win)