Norton Commander (1986) 128 Utility OS2

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

• 1.x (OS2)

ODIN (1994) 0 Virtualization OS2

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

• 4.0

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 Server Developer (1989) 0 OS2

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

• 5.x

OS/2 1.x (1986) 111 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) 51 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

OS/2 3.x (1994) 26 OS2

OS/2 3.0, marketed under the name "OS/2 Warp", reduced memory usage over OS/2 2.x and included Internet access software. The "Connect" version includes Ethernet networking and peer-to-peer file sharing. The "Blue Spine" editions bundle the Windows 3.1 files so no additional software is needed to use the Win-OS/2 subsystem. It was followed up by OS/2 Warp 4. | 1.x | 2.x | 3.x | 4.x | All |

• 3.0
• 3.0 PowerPC Edition

OS/2 Developer Connection (1995) 3 OS2

IBM's semi-often correspondence for OS/2 development.

• Vol. 8
• Vol. 12

OS/2 Warp 4 (1996) 133 OS2

OS/2 Warp 4 incorporated a number of new technologies over OS/2 Warp 3, such as Java, OpenGL, OpenDoc, and VoiceType. It also updated the appearance of the Workplace Shell. | 1.x | 2.x | 3.x | 4.x | All |

• OS/2 Warp 4.0
• OS/2 Warp 4.52

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

OS2 Device Driver Pak (1996) 2 OS2

OS2 Device Driver Pak CD Volume 1.0 is a CD released by IBM to make installation of OS/2 Warp 4 easier.

• 1.0

PageMaker (1987) 78 Publishing Windows OS2

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.

• 3.01

Pascal/MT+ (1981) 4 CPM

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)

PC Magazine Labs Performance Tests (1991) 0 Utility DOS Windows OS2

These disks contain Hardware and Graphics tests from 1990 for Microsoft Windows 2, and OS/2 1.x Presentation Manager.

• 1.x

PC/DACS (1995) 1 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

Peachtree Mailing List Manager (1982) 2 Utility CPM

Peachtree Mailing List Manager, from Peachtree Software Incorporated, is a mailing list manager included with Peachtree software bundles.

• 1

Personal Newsletter (1988) 1 Publishing Other

Personal Newsletter is a simple desktop publishing tool for the Apple II.

• 2.0

Pick Operating System (1987) 3 Other

The Pick Operating System is a multi-user database oriented operating system for the IBM PC. It includes its own multi-user database, and native applications are written in Pick BASIC. It is similar to, and competed against Thoroughbred OS. Later versions of the Pick System database and programming language were hosted under Unix or Windows instead of using its own OS.

• 1987

Plan 9 2 Other

Plan 9 from Bell Labs was a research operating system to improve on the ideas of UNIX. It was a radical revolution - everything was a file, even network sockets, and the system, while CLI based, was improved to take advantage of graphical machines.

• 1.x

Planetfall (1983) 0 Other

Planetfall, by Infocom, is a text-based interactive game where you explore an alien planet after your ship, where you are assigned to scrub floors, mysteriously explodes.

• 1983

Pmcomm (1994) 2 Communications OS2

Pmcomm is an easy to use personal telecommunications program for IBM OS/2. Supports powerful features such as scripting.

• 2.x

PrintPower (1987) 2 Publishing DOS Other

PrintPower is a tool for creating greeting cards, signs, banners, and calendars, similar to The Print Shop. It was a rather clunky low-end bottom of the bargain-barrel budget title. The later "Pro" version seems to give it a more Mac-like user interface.

• 1.x

Quark Catalyst (1985) 2 Utility Other

Quark Catalyst is an Apple II utility that enabled moving applications, including copy protected applications, from 5.25" floppy disks to 3.5" floppy disks or hard disks, and provides launcher menu shell. As of version 3.0 the user interface was revamped to mimic the appearance of the Macintosh Finder. To appease software publishers, the Quark Catalyst software itself is copy protected.

• 3.0

RISC OS (1990) 0 Other

RISC OS is an operating system designed to run on the ARM chipset.

• 3

Select Word Processor (1981) 0 Word Processor CPM

The Select Word Processor, from SELECT Information Systems, Inc., is a word processor for generic CP/M-80 based systems. There were also versions for MS-DOS and CP/M-86.

• 1981