LogicTree (1988) 3 Database DOS

Logictree, From CAM Software, is an easy to use Expert System program that makes decisions based on a programmed "tree" of information.

• Demo

Logitech Modula 2 (1984) 2 DOS

Back before Logitech just sold mice, they produced a programming development system based on the Modula-2 language. efficient native code, and included a symbolic debugger. There were versions for both PC-DOS and CP/M-86.

• 1.x
• 2.x
• 3.x

Logitech Mouseware (1987) 17 DOS Windows

Logitech mice and pointing devices were popular competition to Microsoft or Microsoft clone mice. Logitech mice often had extra features that required Logitech drivers, and early Logitech mice were not Microsoft or Mouse Systems protocol compatible.

• 3.x
• 4.0
• 6.x
• 7.x
• 8.x

Logitech Pascal to Modula-2 Translator (1986) 1 DOS

The Logitech Pascal to Modula-2 Translator is a programming tool that converts Pascal source code in to code that Modula-2 can compile and run. This was an attempt to reel in users of the very popular Turbo Pascal programming product.

• 1.0

Lotus Approach (1993) 2 Database DOS

Lotus Approach, originally from Approach Software Corporation, is a relational database management system. Approach promises "instant productivity" with its WYSIWYG form and report designer, and is compatible with many existing database formats. Approach started off as an independent product, was purchased by Lotus, and later IBM. It was included in Lotus SmartSuite for Microsoft Windows.

• 2.x

Lotus Manuscript (1989) 2 Word Processor DOS

First released in 1986, Lotus Manuscript is a sophisticated word processor geared toward scientific technical writing. It features easy table editing, the ability to easily edit and print mathematical equations, and can handle very complicated documents. It also includes footnoting, document tracking, import from 1-2-3, and mailmerge. Version 2 adds macro and downloadable font support.

• 2.x

Lucid 3-D (1988) 2 Spreadsheet DOS

Lucid 3-D, created by PCSG, Inc. and sold by DacEasy, Inc., is a spreadsheet program for MS-DOS. The feature that sets it apart from others is that it is memory-resident, so you can bring it up on top of other DOS programs and exchange data with them. Unlike simple TSRs, however, Ludid 3D is a full featured spreadsheet. It features linking, macros, windowing, intelligent recalculation, background recalculation, and user-definable functions.

• 1.x
• 2.x

Mace Utilities (1987) 2 Utility DOS

The Mace Utilities, from Paul Mace Software, is a suite of disk and system tools similar to the Norton Utilities and PC-Tools. Notable features in included the ability to undelete files, recover re-formatted disks, a defragmenter, and disk caching software. In 1989, Paul Mace Software Inc sold the Mace Utilities to 5th Generation Systems. After "Mace Express" in 1991, the product seemed to vanish?

• 4.x
• 5.x
• v1990

Managing Money with IBM PC (1986) 2 Financial DOS

A set of financial calculation programs written in Basic.

• 1.0

Mark Williams Let's C (1986) 2 DOS

The Mark Williams Let's C compiler was powerful C compiler for MS-DOS. Let's C was a subset of the Mark Williams C Programming System, and the first low cost entry-level professional C compiler for the IBM PC. It was also the first compiler to have a C source-level debugger. executables than any other compiler on the market at the time. It supports both large and small x86 models, and supports the 8087 math co-processor. It competed against compilers from Digital Research, Lattice, Computer Innovations, and Microsoft. language, plus extensions to C implemented under UNIX. Includes an assembler, loader, archiver, advanced symbolic debugger. C shell, utilities and Micro-EMACS, a full-screen editor. Unix and the Atari ST. Let's C is fully compatible, so C programs can easily be ported between the ST and IBM PC. Coherent, the first commercially viable Unix clone.

• 3.x
• 4.x

Master Graphics Presentation Pack (1987) 1 Presentations Graphics DOS

The Ashton-Tate Master Graphics Presentation Pack is a bundle of Ashton-Tate's graphics programs. This includes Chart-Master, Diagram-Master, and Sign-Master. These appear identical to the standalone versions, the only different is the inclusion of a unified menu disk.

• 1.0

Mathcad (1989) 3 Mathematics DOS

Mathcad is computer software primarily intended for the verification, validation, documentation and re-use of engineering calculations.

• 2.5

Mavis Beacon Teaches Typing (1988) 2 Education DOS

An interactive typing tutor for the IBM PC that uses a variety of entertaining learning styles.

• 1

McAfee VirusScan (1995) 1 Utility DOS Windows OS2

McAfee VirusScan was a very popular and reliable virus scanner during the late 90s. Notably, they distributed a free shareware version of their product. VirusScan was often pre-loaded with OEM computers.

• 2.x
• 4.x

Memory Commander (1992) 1 Utility DOS

Memory Commander, from V Communications, Inc, is a memory manager similar to QEMM or 386MAX, but can expand the DOS base memory beyond 640K with some kinds of applications.

• 3.x
• 4.x

MetaWare High C/C++ (1991) 4 DOS

MetaWare High C/C++ is a very robust cross platform compiler for DOS, Unix, OS/2, Windows, and Windows 32. Originally a C compiler targeting CP/M and DOS, 'Metaware High C/C++ was later extended to support OS/2 and the 80386 architecture. After the failure of Metaware it was taken over by MQX Embedded who re-targeted it at the embedded market. MQX Embedded is now Synopsys and the product is now referred as Synopsys Metaware Compiler with no OS/2 version.

• 2.x
• 3.0x
• 3.3x

Micro Focus Cobol (1993) 1 DOS

Micro Focus COBOL is a powerful high-speed COBOL language compiler that supported cross platform development between DOS, Windows, OS/2 and Unix. It features an interface developer for both GUIs and text mode, a code debugger, a code analyzer, and later versions included support for object oriented code development. It claimed it made COBOL programmers more efficient, while speeding up migration from mainframes to personal computers.

• 3.x

Micrografx PC-Draw (1985) 0 Graphics DOS

PC-Draw is a vector based drawing program for DOS. You can use it to make diagrams, schematics, charts, and drawings. It has optional support for plotters and light pens.

• 1.4

Microlog-Xedex Baby Blue Drivers (1983) 2 DOS

This is the software needed to test and operate a Baby Blue expansion card. The Baby Blue is a Z80 based CPU card that enables an IBM PC to seamlessly run CP/M-80 programs under MS-DOS.

• 1983-1984

MicroPro DataStar (1983) 2 Database DOS

MicroPro DataStar is a general purpose forms based desktop database for early IBM PCs and compatibles. It is often used in conjunction with ReportStar and sometimes bundled as InfoStar. MicroPro products were commonly bundled with OEM systems.

• 1.x

MicroPro ReportStar (1983) 0 Database DOS

MicroPro ReportStar is a report generator for DOS used in conjunction with DataStar and sometimes bundled as InfoStar.

• 1.01

Microsoft Access Business Information Access Program (1985) 2 Communications DOS

First released in 1985, the Microsoft Access Business Information Access Program is a telecommunications program that features VT100, VT52 and TTY terminal emulation, macros, a powerful scripting language, self-learning scripts, data import/export facilities, multiple windowed sessions, and built in support for a variety of on-line services. It competed with Procomm, Crosstalk, Relay Gold, and PC-Talk.

• 1.0x

Microsoft Adventure (1981) 4 DOS

Microsoft Adventure is a text based interactive fiction game based on "Colossal Cave Adventure" by Will Crowther. It was one of the first games for the IBM PC.

• 1.00

Microsoft BASIC (1981) 45 CPM DOS OS2

Although Microsoft did not invent BASIC, their founding product was a BASIC interpreter for the Altair computer. The descendants below includes Microsoft's BASIC-80 (MBASIC), BASIC-86 (pre-GWBasic), BASIC for Mac, BASIC Compiler 86/88, Basic Compiler for Mac, and Professional Development System 7.x. IBM Personal Computer Basic Compiler, GW-BASIC, QuickBasic, and Visual Basic are listed separately.

• -80
• -80 Compiler 5.x
• -86 5.x
• -86 Compiler 5.x
• Compiler 6.0
• PDS 7.0
• PDS 7.1

Microsoft Business Basic Compiler (1984) 0 DOS

Microsoft's Business Basic Compiler is a special BASIC variant that is designed to create high performance compiled code, with a focus on numeric floating-point accuracy and additional database-like features.

• 1.x