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.

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

Crash Guard is a tool that prevents misbehaving application programs from completely freezing the Windows user interface, in some cases can "unfreeze" a program, and recover the data you were working with. Crash Guard Deluxe also includes a number of additional tools to help improve the stability of a Windows system. This includes a system checker, virus scanner, hard drive integrity scanner, disk optimizer, software updater, registry scanner, and disk space manager.

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

The Norton Editor is a text editor targeted at programmers and power users. It features the ability to edit files of any size, supports very long lines, automatic indentation, and compressed display. It supports executing DOS commands from inside the program, and is very configurable.

Norton Navigator is a set of user interface add-ons for the new Microsoft Windows 95 desktop shell geared towards power users. Rather than a complete shell replacement like Norton Desktop, Norton Navigator adds functionality to the existing Windows Explorer user interface.

Norton NT Tools was a precursor to the Norton Utilities for NT. It does not contain disk utilities associated with the Norton Utilities, but instead includes some of the higher level tools.

Norton Personal Firewall is a software product that helps protect computers against threats from the Internet at the TCP/IP protocol level.

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.

Norton Textra Writer is an easy to use word processor for IBM PCs and compatibles running DOS. It was based on Ann Arbor Software' Textra, a small and fast word processor highly optimized for speed and rapid data entry, and published by the W W Norton & Co Inc publishing company (no relation to Peter Norton Computing or Symanetc).

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.

First released in 1982 and based on XyWrite, Nota Bene is a word processor specifically tailored to academic use. It is a very complex, unfriendly, program, but it is packed full of features. Features include footnotes, endnotes, redlining, styles, outlining, tables, indexes, bibliographies, a text retrieval system, foreign language support, spell checker, thesaurus, and a built in programming language. The Ibid component was an option that acted as sort of a database of bibliographic references.

First released in 1984, Nutshell was one of the first easy-to-use general purpose databases. It was created by Nashoba Systems and initially distributed by Leading Edge. layout design. It also supports calculated fields and sorting. version through Forethought Inc. as FileMaker. Later, Nashoba was acquired by Claris, where the product eventually became FileMaker Pro. found here: FileMaker History

Tools for converting and running Windows applications in OS/2.

Menu Planner is a rudimentary low cost application that assists users in planning diet meals. It walks users through a series of "wizard" style selections, keeps track of calories and usage, and provides users with a list of possible meal plans.

OfficeWriter, from Office Solutions, Inc and later Software Publishing Corporation, is a word processor that mimics the Wang word processor system. It was targeted at corporations and competed against Multimate, another Wang word processor workalike.

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.

Omnipage is an optical character recognition (scanned image) application that can export to a number of document formats. It was often bundled with scanners.

Omnis, from the European based Blyth Software, is an easy to use multiuser relational database for Windows, MacOS, and OS/2. It was the first database ported to Microsoft Windows, which ran on Windows 1.0x.

Omniview 386 was a multitasking application manager for DOS produced by Sunny Hill Software in the late 1980's. Version 4.11 was reviewed in the February 13, 1989 issue of InfoWorld.

Ontrack PowerDesk is a powerful file manager for Windows 9x/NT that includes built in archive management, file searching, and an FTP client.

Open Access III is a DOS based integrated office suite that includes a database, word processor, spreadsheet, statistical analysis, graphics, telecommunications and a C style custom application programming language.

Open Systems Accounting Software is a modular accounting package targeted at large businesses. It featured a high level of flexibility, as the company offered source code access for customization. It was available for DOS, XENIX, and Unix systems.

OPTune is a disk optimizer, file system repair tool, and disk tester. It also includes an tool that can change the low-level format sector interleave on MFM/RLL drives, similar to Spinrite.

Oracle Discoverer is an ad-hock reporting tool used with Oracle databases. It can view and edit data and produce reports and graphs.