MS-DOS (1981) 781 DOS

Originally 86-DOS, written by Tim Paterson of Seattle Computer Products, DOS was a rough clone of CP/M for 8086 based hardware. Microsoft purchased it and licensed it to IBM for use with Microsoft's IBM PC language products. In 1982, Microsoft began licensing DOS to other OEMs that ported it to their custom x86 hardware and IBM PC clones.

• 5.0
• 6.0
• 6.20
• 6.21
• 6.22
• 7.1 (CDU)

Multiscope Debuggers (1992) 1 DOS

Multiscope Debuggers for Windows is a debugging system for Windows 3.0 and 3.1 that features a GUI debugging interface, C++ debugging, a crash analyzer, execution control, advanced breakpoint capability, message spying, and remote debugging. There were also versions for DOS and OS/2.

• 2.x

Multiuser DOS (1992) 6 DOS

Digital Research's Multiuser DOS is a true multi-tasking, multi-user operating system with a DOS like environment. It is based on Concurrent CP/M, and Concurrent DOS.

• 5.x

My Advanced MailList (1991) 0 Database DOS

My Advanced MailList is a comprehensive mailing list manager database that supports a wide variety of label formats, embedded graphics, import/export with other databases, and printing POST-NET barcodes.

• 3.x (DOS)

MyBackup (1991) 0 Utility DOS

MyBackup was a low-end, low cost budget title that featured a simplistic, no-frills, easy to use backup utility. It can perform full backups, or backups of selected files. There were versions for DOS and Windows. Presumably based on Finot KeepTrack Plus.

• 1.x (DOS)

MyDataBase (1992) 1 Database DOS

MyDatabase is a small inexpensive home-oriented database program. It supports customizable entry forms, reporting, and friendly record searching.

• 1.x

myHouse (1993) 0 Graphics DOS

myHouse is a simplistic easy to use CAD program that is specifically geared towards generating home layouts. It uses 2-D editing and features the ability to render the final product in 3-D.

• 1.x

MyInvoices (1991) 0 Financial DOS

MyInvoices, from MySoftware Co., is a simplistic low-cost budget application that generates and stores invoices, tracks sales, fees, and time. It was marketed to service-related business individuals. The product is very narrow in scope, and for example, does not track inventory. "MyLabelmaker" and MyCheckbook"

• 1.1.x

MyTreasures (1991) 0 Database DOS

MyTreasures is a budget database program from My Software that is specifically designed for keeping track of collectibles. It features the ability to sort, print booklets, labels, reports, and Rolodex cards. Perfect for inventorying your baseball cards, coins, or VHS video collection.

• 1.x

Netscape (1994) 21 Web Browser Windows Unix MacOS OS2 Linux Other

Netscape Navigator/Communicator was the first commercial web browser, displacing the free NCSA Mosaic. 1.0 was first released in December 1994, and initially offered advanced features such as progressively rendering pages as they loaded. It quickly gained many other features and capabilities and became the most popular web browser in the mid 1990s. One reason for its popularity, it was licensed freely for personal and non-profit use, although companies were expected to pay for a license. It later competed with Microsoft Internet Explorer, Opera, and Safari, and eventually was open sourced in to the Mozilla browser.

• 1.x
• 2.x
• 3.0.x
• 4.0x
• 4.5x
• 6.x

Netware Lite (1991) 0 Utility DOS

Netware lite was Novell's low-end networking product. It offered peer-to-peer networking up to 25 machines, used ODI network card drivers, and offered some support for talking to full Novell Netware networks. It was sometimes bundled with DR-DOS. It was followed up by Novell Personal Netware.

• 1.x

New Deal Office (1999) 0 Word Processor Spreadsheet Presentations DOS

Based on GeoWorks, New Deal Office was a graphical operating environment for DOS which later became Breadbox Ensemble. New Deal adds a Windows-95 like user interface with a task bar and start menu. New Deal Office targeted low-end 386 and 486 computers that were not up to the task of running Windows 95. It was also released in a "WebSuite" edition only includes the internet connectivity and web browsing tools.

• 3.1b
• 3.2a
• 2000

NeXTStep (1987) 17 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.

• 3.x
• 4.x

Norton Anti-Virus (1990) 3 Utility DOS Windows 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.

• 1.5
• 2.0
• Michelangelo Edition
• 6.x
• 7.x
• 8.x
• 9.x

Norton Backup (1990) 0 Utility DOS

Norton Backup, from Symantec, is a fast and easy to use backup tool for MS-DOS. The original 1.0 suffered from reliability problems, but these were fixed in 1.1. It does not include a backup scheduler. It competed against backup utilities such as PC Tools Deluxe PC Backup, Taketwo Manager, Gazelle Systems Back-It, Backup Pro, FastBack Plus, and Keep Track Plus.

• 2.x

Norton Commander (1986) 47 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 Desktop (1991) 2 Utility DOS

Norton Desktop is a powerful desktop shell and file manager bundled with many additional tools. There are versions for both DOS and Microsoft Windows.

• 1.0 for DOS

Norton SystemWorks (1998) 14 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) 21 Utility DOS MacOS

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.

• 6.0
• 2.0 for Mac
• 7.0
• 3.x for Mac
• 8.0
• 4.x for Mac
• 5.0 for Mac
• 6.0 for Mac

Novell Network Support Encylopedia (1992) 0 DOS

The Network Support Encyclopedia Professional Volume (NSEPro), was Novell's high-priced technical knowledge base on a CD-ROM. Intended for Novell support professionals, it contained up-to-date product support documentation in a searchable hypertext system.

• 1992

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) 0 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

Oracle Server (1991) 6 Server Database DOS

Oracle Server is an enterprise grade relational database used in many corporations. It was mainly targeted at high end server operating systems, such as IBM AIX, Sun Solaris, HP UX, Digital VMS, Linux, and Microsoft Windows NT. Oracle makes current versions of their software avaialble for download, but older versions usually disappear.

• 6