Citrix Multiuser Link (1991) 1 Communications DOS OS2

Multiuser Link is a telecommunications program that Connects a PC running DOS or OS/2 to a Citrix Multiuser system via standard RS-232C serial directly or with a modem.

• 1.0

Coherent (1994) 1 Unix

Coherent, from Mark Williams Company, was a compact high speed Unix clone that was ported to a number of architectures including IBM PC.

• 4.x

ColorWorks (1996) 0 Graphics OS2

ColorWorks is a powerful, full-featured, photo editing program designed exclusively for OS/2. It is a native 32-bit OS/2 application and makes use of OS/2 multitasking, multithreading, and SMP capabilities. It has many features and tools that make it comparable to most other image editors.

• 2.x

Concurrent CPM-86 (1982) 13 CPM

Concurrent CPM-86 is a multitasking version of CP/M that evolved from Digital Researches' earlier multitasking MP/M product. A seperate add-on was available for 3.1 that added DOS compatiblity. This was integrated in to the product and it was renamed to Concurrent DOS.

• 1.x
• 2.x
• 3.x

Concurrent DOS (1984) 8 CPM

Originally an optional module for Concurrent CP/M-86 3.1, this version of Digital Research's CP/M provided basic compatibility with PC-DOS in 1983. Simple DOS applications that did not require hardware access can be ran on this. A stripped down single tasking version was released as DOS Plus and later DR-DOS.

• 3.x
• 4.x
• XM 6.x
• 386 2.x
• 386 3.x

CorelDraw! (1989) 48 Graphics Publishing OS2 Unix

Corel Draw is a vector based drawing and illustration program. It is primarily a Windows application, but was ported to Mac OS, Mac OS X, Linux, CTOS and OS/2. It competed against Aldus Freehand, Adobe Illustrator, and Micrografx Designer.

• 2.5
• 3.5 (Unix)

CP/M 86 (1982) 11 CPM

CP/M-86 is a port of Digital Research's CP/M operating system to the Intel 8088/8086. The earlier CP/M-80 was extremely popular on 8080/Z80 microcomputers.

• 8680 2.x
• 1.x
• 3.x

CP/M-80 (1982) 3 CPM

CP/M-80, from Digital Research, was a popular operating system for 8080 and Z80 microcomputers. Each release was customized by OEMs specifically for their hardware.

• 2.2 (8080)
• (Other platforms)

DataEase (1988) 2 Database DOS OS2

DataEase, from DataEase International Inc., USA., is a fast, easy to use yet powerful, menu-driven relational database development system for the IBM PC. Not copy protected.

• 4.5

DEC OSF-1 (1991) 1 Unix

DEC OSF-1 was a version of UNIX from DEC built on the Mach kernel. It was first developed for MIPS based DECStations, and then ported to 64-bit DEC Alpha (AXP). It was later renamed to Digital Unix, and then again to True64 Unix.

• 1.x
• 2.x

DEC Rainbow Learn Rainbow tutorial (1983) 0 CPM

This is a tutorial program included with DEC Rainbow computers. The DEC Rainbow is a non-IBM compatible MS-DOS computer. This program is for the CP/M-86 operating system.

• 1

DEC Rainbow Winchester Diagnostics 2.1 (1983) 0 CPM

Hard disk diagnostics and utilities for the DEC Rainbow computer. The DEC Rainbow is a non-IBM compatible MS-DOS computer. This program is for the CP/M-86 operating system.

• 2.x

DELL Unix (1992) 4 Unix

Dell Unix, first introduced in 1989, was an adaptation of AT&T Unix intended for Dell hardware. Although Dell Unix received much praise, Dell found they could not reasonably support it on non-Dell hardware, as many customers wanted, and in 1993 discontinued it.

• 4.0

DeScribe (1991) 3 Word Processor Windows OS2

DeScribe is a word processor with some advanced features primarily for OS/2. Later, it was made available for Windows 3.1, 95, and NT.

• 3.0
• 4.0
• 5.0

Deskman/2 (1995) 0 Utility OS2

DevTech's Deskman/2 is a set of desktop and system management tools for OS/2. It contains data compression tools, networking tools, performance monitoring tools, and desktop management tools.

• 1995

Digital Research C (1984) 5 DOS CPM

Digital Research C is a compiler developed for use with Digital Research's CP/M systems. It was also ported to DOS.

• 1.x

Digital Research PL/I Compiler (1983) 2 DOS CPM

PL/I is a programming language oriented towards scientific and business programming. Digital Research provided implementations for their CP/M operating system as well as MS-DOS.

• 1.x

Digital UNIX (1995) 0 Unix

Formerly OSF/1, in 1994 after the Open Software Foundation (run by DEC, IBM, and HP) ceased involvement, Digital Equipment Corporation renamed the OS to "Digital UNIX". In 1998, DEC was bought out by Compaq and the product was again renamed, to Tru64 UNIX.

• 3.2B
• 3.2G
• 4.0B
• 4.0D
• 4.0E

Digitalk Smalltalk/V (1986) 2 OS2

Smalltalk/V was the first widely available version of Smalltalk. It was developed by Digitalk in 1986 for DOS, Macintosh, and later Windows.

• 1.x (OS/2)

Display Enhancement Package for TI-99/4a (1982) 0 Other

The Display Enhancement Packageby OAK Tree Systems This is a library that permits easy access to the the TI-99/4a 40-colum video text mode.

• 1982

DisplayWrite (1984) 1 Word Processor DOS OS2

DisplayWrite is a word processor that is based on the IBM Displaywriter dedicated word processing system. It directly competed with software ports of dedicated word processors such as the Wang Word Processing System (or its clone MultiMate ), Lanier Word Processing Software, Xerox, DEC, or similar.

• 4
• 4/2

DR Draw (1983) 2 Graphics DOS CPM

DR Draw is a shape-based drawing program that uses Digital Research's GSX graphics library, making it portable across CP/M and DOS architectures with different video systems.

• 1.x

DR Graph (1984) 2 Presentations DOS CPM

DR Graph is a business graphics creation program. It can create line, bar, pie, and scatter graphs and print them on a graphics printer. DR Graph is implemented using Digital Research's GSX graphics library, and can run on many different platforms.

• 1.x

Draw 'n Plot (1984) 0 Other

Draw 'n Plot, from Quality 99 Software, is a drawing application and library for the TI-99/4A with Extended Basic, that adds the ability to use bit-mapped graphics.

• 1984

Editor Assembler TI-994a (1981) 3 Other

Editor Assembler is a native development system for the TI-99/4A. It features a text editor, a TMS9900 machine code assembler, and sample code including an assembler version of "Tombstone City".

• 1981