PC-DOS (1981) 210 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.

• 5.x
• 6.x
• 7.x
• 2000

PC-File (1984) 0 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.

• 5.x
• 6.x
• 7.x

PC-MOS (1987) 7 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 Windows 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.

• 5.x
• Pro 2.x

PC-Tools File Manager (1994) 0 Utility Windows

This is a standalone version of the enhanced filemanager that was bundled with PC-Tools for Windows. This version was released after Symantec acquired Central Point and discontinued the PC-Tools product.

• 3.0

PC-Type (1991) 1 Word Processor DOS

PC-Type is a bare bones, budget oriented, word processor. PC-Type, along with PC-File were among the first popular products sold under the "Shareware" concept.

• 4.x

PC-Xview (1992) 0 Communications DOS

PC-Xview is a mature X Windowing program for DOS. It supports a wide variety of DOS network clients

• 4.0

PC/DACS (1995) 0 Utility OS2

PC/DACS is a system utility that adds password protected access control to a computer. It support session timeout, usage time restrictions, boot protection, system drive encryption, and GUI tools for all administrative tasks.

• 2.x

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.

• 2.x
• 4.x

pcANYWHERE (1990) 0 Communications DOS Windows

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

• 4.0 (DOS)
• 4.5 (DOS)
• 1.0 (Win)
• 5.0 (DOS)
• 2.0 (Win)
• 7.5 (Win)
• 8.0 (Win)

PDC Prolog (1990) 0 DOS

PDC Prolog, by Prolog Development Center, is an enhanced implementation of the Prolog language (a language associated with artificial intelligence development). Some early versions were marketed and published by Borland under the name "Turbo Prolog".

• 3.x

Peachtree Complete Accounting (1992) 0 Financial DOS Windows

Peachtree Accounting was originally created in 1975 by an Altair dealer, The Computer SystemCenter, in Atlanta, Georgia to help sell Altair computers. That possibly would have made it the first accounting package for personal computers.

• 6.00 (DOS)
• Crystal 5.0
• 8.00 (DOS)
• 3.0 (Win)
• 9.00 (DOS)
• 4.0 (Win)

Perceive Personal (1993) 0 Publishing DOS

This is an early OCR program for DOS based computers.

• 1.1 for DOS

PerfectOffice (1995) 6 Word Processor Spreadsheet Presentations Graphics Database Windows

PerfectOffice is a bundle of office applications that competed head on with Microsoft Office.It bundles WordPerfect and a number of other office applications. This bundle started out as "Borland Office", was briefly known as "Novell PerfectOffice", then "Corel Office", and under Corel it later became "WordPerfect Office". (Not to be confused with the unrelated ~1990 groupware program, also called "WordPerfect Office")

• 3.0

PerfectWorks (1995) 1 Word Processor Spreadsheet Graphics Database Windows

PerfectWorks is an all-in-one word processing/spreadsheet/database/drawing program originally sold by WordPerfect Corp, and later by Novell.

• 2.x
• 3.x

Performance Now! (1995) 0 Document Windows

Performance Now, from KnowledgePoint, is a Windows 3.1 automated tool for writing employee performance reports. It can exchange data with KnowledgePoint Descriptions Now.

• 2.x

Personal Attorney (1994) 0 Document Windows

Personal Attorney is a program that automatically generates a number of legal templates for use in word processors.

• 1.x

Personal NetWare (1993) 1 DOS

Personal NetWare is a peer-to-peer network system for DOS targeted as an entry level product for small businesses. It was a re-worked follow up product to Novell NetWare Lite. Unlike NetWare Lite, Personal NetWare can also communicate with a regular full-blown NetWare server. Personal NetWare was bundled with Novell DOS 7, and competed against Windows for Workgroups 3.11 and Lantastic.

• 1.x

Persuasion (1991) 0 Presentations Windows MacOS

Aldus Persuasion is a presentation and slide creation program. "With the support that Persuasion offers - professional quality slides, overheads, handouts, and speaker notes - you can deliver your presentation with more confidence and ease than ever before." After version 2.x, Persuasion was purchased by Adobe.

• 2.x
• 3.0
• 4.0

PFS First Choice (1987) 1 Word Processor Spreadsheet Presentations Database DOS

PFS First Choice is a simple, easy to use integrated office suite marketed towards new users. It includes a word processor, spreadsheet, graphics, database, and telecommunications. First Choice is similar to, but not as feature rich as, the standalone PFS office products. It competed against AlphaWorks/LotusWorks and Microsoft Works.

• 3.x

PFS First Publisher (1988) 0 Publishing DOS

First Publisher, from Software Publishing Corporation, is a WYSIWYG desktop publisher for DOS that excels at producing extremely high quality text and graphics print even using dot-matrix printers. This program originated as T/Maker Clickart. In 1991 Software Publishing Corp sold their PFS series to Spinnaker Software, where it became Easy Working Desktop Publisher.

• Art
• 3.0

PFS Preface (1990) 0 Utility DOS

PFS Preface is a menu system and file manager for DOS that uses an interface style similar to other PFS products.

• 1.00

PFS:Business Plan (1992) 0 Document Windows

PFS:Business Plan is a business management program specifically tailored for creating company business plans. This involves market analysis, business forecasting, sales forecasts, balance sheets, cash flow, etc.

• 1x

PFS:WindowWorks (1991) 1 Word Processor Spreadsheet Presentations Communications PIM Database Windows

PFS WindowWorks, from Spinnaker Software and Ancier Technologies, is an integrated all-in-one office application that includes a word processor, spreadsheet, chart editor, telecommunications, database, label maker and address book. Supposedly it was the first of such office suites for Windows 3.0, but soon competed with Microsoft Works for Windows. for Windows"](/product/better-working-eight).

• 1.x
• 2.x

PFS:Write (1983) 9 Word Processor DOS

PFS:Write, originally from Software Publishing Corporation and later sold to Spinnaker Software, was an early and easy to use word processor for the IBM PC and Apple II. It was also licensed by IBM as IBM Writing Assistant. It can exchange data between PFS:Graph, PFS:File, and PFS:Report. SPC later replaced PFS:Write with Professional Write. Early versions had no built in spell checker, and were instead used with PFS:Proof.

• 2.x