Open Systems Accounting (1985) 0 Financial DOS

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.

• 3.x

OPTune (1991) 0 Utility CPM

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.

• 1.x

Oracle Office (1993) 0 Communications Windows

Oracle Office 2.0 is a groupware solution from Oracle, similar to Lotus Notes or WordPerfect Office (Groupware), but uses Oracle's database as a backend and includes database functionality in addition to document processing. It featured the ability to connect thousands of users at once. This software later became "Oracle Documents".

• 2.0

Oracle Server (1991) 0 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

Oracle Server Developer (1989) 0 OS2

These are development tools, mainly SQL Plus, for use with an Oracle Database.

• 5.x

Orion Hardcard Drivers (1989) 0 DOS

Drivers for the Orion branded Hardcard 20 & 40 products. These were 20MB and 40MB hard disk drives fitted onto an ISA card, instead of using a drive bay. 4.x onto the Hardcard.

• 89

Orthodontic Computer Software PIMS (1987) 0 Other DOS

Orthodontic Computer Software Patient Information Management System is a custom business program specifically designed to aid in the management of orthodontic practices.

• 9.0

OS/2 1.x (1986) 29 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 2.0 (1991) 12 OS2

OS/2 2.0 was a major change over OS/2 1.x. It was the first 32-bit OS/2 and built by IBM free of Microsoft's influence or contribution. It was the first to feature the new Workplace Shell GUI, and the first to be 32-bit. It was followed up by OS/2 Warp 3. | 1.x | 2.x | 3.x | 4.x | All |

• Pre-Release
• 2.0
• 2.1

Outside In (1991) 0 Utility DOS

Outside In, from Systems Compatibility Corp, is a TSR file viewer that can copy and paste blocks of text from documents in to DOS applications.

• 1.x

Overhead Express (1984) 0 Presentations DOS

Released in 1984 by Business & Professional Software, Inc, Overhead Express is a very early presentation program for the IBM PC that features high quality type, and an on screen print preview. It is geared towards overhead presentations, but can also be used for flyers, newsletters, report cover, labels, and more.

• 1.x

Packard Bell Navigator (1993) 5 Utility Other Windows

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.

• 1.0
• 1.1

PageMaker (1987) 60 Publishing Windows OS2 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.

• 1.00
• 1.0A
• 3.00
• 3.01
• 4.0
• 5.0

PageView (1988) 0 Word Processor Windows

Pageview is a tool to graphically display, manipulate, and print Microsoft Word 3.0 and 4.0 for DOS documents. This was released almost two years prior to Word 1.0 for Windows.

• 1.0

Paint Shop Pro (1990) 45 Graphics Windows

JASC Paint Shop Pro is a simple and easy to use bit-mapped graphics editor. It supports a wide variety of file formats, and photo manipulation functions that were comparable to PhotoShop. It has good support for editing 256 color palletized images that made it ideal for editing web graphics. It was first released in 1990 for Windows 3.0 as just "Paint Shop", and early versions gained popularity through the distribution of shareware releases. It lost popularity in 2003 when 8.0 was introduced with a redesigned UI and in 2004, JASC was acquired by Corel.

• 1.x

PaintShow Plus (1987) 1 Graphics DOS

Logetech's PaintShow Plus is a DOS based bit-mapped drawing program bundled with Logitech mice. Like ZSoft PC Paintbrush, Microsoft PC Paintbrush, and Mouse Systems PC Paint, PaintShow Plus clones the MacPaint user interface.

• 1.x
• 2.x

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

Paradise VGA Plus 16 Drivers (1988) 1 DOS Windows

Drivers for the Paradise Plus VGA card.

• 1.x

Paradox (1985) 9 DOS Windows

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.x
• 2.x
• 3.x
• Engine 2.0
• 4.0
• 1.0 (Win)
• 4.5
• 4.5 (Win)

Parsons MoneyPlans (1989) 0 Financial DOS

MoneyPlans consists of a series of financial calculations intended to assist you in planning your personal financial situation. This includes calculations for Life Insurance, Disability Insurance, Education, Retirement, Cash Vs Loan, Leas Vs. Loan, Adjustable Rate Loan, Loan Comparison, CD Comparison, Bond Volatility, and Discount Feasibility.

• 1.x

Partition Commander (1988) 2 Utility DOS

Partition Commander is a Wizard based partition and disk utilization tool. It supports FAT, FAT32, NTFS, HPFS, and some Unix file systems.
It runs in real-mode DOS and installs from only two floppy disks. It competed directly against Partition Magic. Memory Commander, a 386 Expanded/Extended Memory Manager.

• 1.x

Pascal/MT+ (1981) 0 CPM DOS

Pascal/MT+ is an ISO 7185 compatible Pascal compiler sold by Digital Research as part of their CP/M product line. There were versions for CP/M-80, CP/M-68k, CP/M-86, and MS-DOS.

• 5.x (CPM)
• 3.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.

• 2.0

PC Animate Plus (1992) 0 Graphics DOS

PC Animate Plus, from Presidio Software, Inc, is a two dimensional paint and animation package. It can use 256 colors and Sound Blaster sound. It supports SVGA resolutions and 32k colors on select video cards. Supports frame rotation and scaling, pixel painting and pallet effects, cell animations, and can import Autodesk FLI animations.

• 2.0

PC Globe (1990) 0 Reference DOS

PC Globe is an electronic atlas of the world that provides profiles, maps, geography, and graphics for the countries of the world. It can generate a variety of reports using this data and export map graphics. They also sold a USA specific version called PC USA that contains more detail about the US states. A related product was released for Windows as PC Globe Maps N Facts.

• 3.0
• 4.0
• 5.0