Labelwriter (1987) 1 Utility DOS

Labelwriter is an inexpensive, self contained, and easy to use database program just for printing business or customer mailing address labels. Labelwriter combines the essential information-handling features you need with versatile printing options to make it easy to maintain and print business mailing lists on self-adhesive, continuous-form labels with your PC's printer.

• 1.x

LAN Manager (1988) 4 OS2

Microsoft LAN Manager is a networking system for OS/2 similar to their earlier MS-NET product. Licensed variants of this product include 3Com 3+Open, HP LAN Manager/X, IBM LAN Server, and Tapestry Torus.

• 1.x
• 2.x

Landmark Service Diagnostics (1992) 1 Utility DOS

Landmark Service Diagnostics is a set of professional, exhaustive diagnostic tool for testing all aspects of IBM PC 8088, 286, 386, and 486 compatible computer systems. It includes hundreds of powerful and flexible tests that check motherboards, RAM, video, COM ports, floppy drives, hard drives, and printers.

• 2.x

LANLink (1990) 2 DOS

LANLink is a low cost networking program that is optimized for, and exclusively uses, common serial and parallel port connections. It features faster file transfer than other serial/parallel transfer programs, is easy to set up, and enables direct file and printer access.

• 2.x

LANtastic (1990) 0 DOS

Lantastic is an easy to use, low cost networking system targeted at small networks and home users. It was very popular and highly rated in the early 1990s. Unlike most LAN networking software of the time, Lantastic required only installation and minimal, straightforward, configuration. Lantastic gives users the ability to share printers and files on a hard drive or CD-ROM. It is considered a "peer-to-peer" network, as there is no need for a dedicated server. Any computer may be configured as a server as well as a client. Lantastic was also very memory efficient, using minimal DOS memory in both workstation and sever modes, enabling users to run most popular DOS applications while Lantastic was running. Lantastic supported Ethernet, ARCNET and Token Ring networks. Artisoft also sold networking kits that included both network adapters and the Lantastic software. Lantastic was avaialble for DOS, Windows, and OS/2. At the time it competed against Novell Netware Lite, and many other small LAN oriented products.

• 3.0
• 4.0

LapLink (1987) 9 Communications DOS

LapLink, from Traveling Software Inc., enables users to easily and quickly move files between two DOS computers using only a serial null-modem cable or a special parallel port connector. No other hardware is needed. Laplink was extremely popular.during the late 80s and early 90s. It was infinitely easier to set up any two arbitrary PCs (often portables or laptops) with LapLink than other methods, such as DOS based networking. MS-DOS 6 bundled a similar set of file transfer tools called INTERLNK and INTERSVR.

• 2.x
• 3.x
• XL
• 4.x

Lattice C (1984) 8 DOS

Lattice C was originally released by Lifeboat Associates in June 1982 for the IBM PC. Microsoft repacked Lattice C as "Microsoft C 2.0", however Microsoft C 3.0 and later used Microsoft's internally developed product instead. Lattice C was ported to MVS, VMS, Unix, OS/2, Amiga, Atari ST, and Sinclair.

• 2.x
• 3.x

Leading Edge Word Processing (1985) 3 Word Processor DOS

Leading Edge Word Processing is an "easy to use", yet full-featured, word processor bundled with Leading Edge computers. It has operational similarities similar to Wang word processing systems. At release, special features included split-screen, delete recall, the ability to display and print color text, and character based graphics.

• 1.x

Learn To Use DOS (1991) 1 Education DOS

This is a nice little program for those MS DOS 5 users out there. It is a complete introduction to MS DOS that teaches you essential things to use MS DOS. MS DOS doesn't have to be hard, it's very easy! Just ask this program! This product is similar to Microsoft Learn DOS.

• 1991

LetterPerfect (1992) 3 Word Processor DOS

Introduced in 1990 by WordPerfect Corp, LetterPerfect is a lightweight low-cost version of WordPerfect 5.1.

• 1.0

Lightning (1987) 1 Utility DOS

Lightning disk cache, from Personal Computer Support Group, is one of the earlier disk caching programs for MS-DOS IBM PCs and compatibles. It supports read and write caching of both floppy and hard disk drives, and can use EMS memory. as smaller name programs such as Super PC-Kwik.

• 4.x

Lightning Word Wizard (1986) 0 DOS

Borland Lightning Word Wizard is a set of development source code and sample programs that enable you to make use of Turbo Lightning advanced database engine features from within your own programs.

• 1.00

LIMSIM (1989) 0 DOS

LIMSIM is a relatively easy-to-use commercial program for 286 based and later computers that emulates paged EMS memory using standard 286/386 XMS memory.

• LIMSIM

Linux Kernel (1991) 3 Linux

Linux, originally created by the Finnish programmer Linus Torvalds, is a Unix-like operating system loosely inspired by Minix. The pivotal difference, however, was how it was licensed. Unlike Unix operating systems that remained expensive and proprietary, Linux and its source code were licensed for free distribution, with the provision that all changes or additions to the source code must also be released for free.

• 0.x

LogicTree (1988) 1 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) 0 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) 21 DOS

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

Logitech Pascal to Modula-2 Translator (1986) 0 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 1-2-3 (1983) 65 Spreadsheet DOS OS2 Unix Windows MacOS

Lotus 1-2-3 was an early spreadsheet application available for MS-DOS. It became extremely popular in the late 1980s, displacing the former leader VisiCalc. Lotus had difficulties adapting 1-2-3 to the Windows environment, and was overtaken by Microsoft Excel. Spreadsheet functionality was also included in Lotus Symphony. Later versions were included in Lotus SmartSuite.

• 1.x (DOS)
• 1A (PCJr Cart)
• 2.x (DOS)
• 3.x (DOS)
• Add-ins
• 1.x (OS/2)
• 1.x (Unix)
• 1.x (Win)
• 1.x (Mac)
• 4.x (Win)

Lotus Agenda (1988) 2 PIM DOS

Agenda is DOS based Personal Information Manager that features customizable categories, and many data retrieval features. It was criticized for not being easy to use and lacking features found in other PIMs. It was replaced by Lotus Organizer.

• 1.x
• 2.0

Lotus Approach (1992) 3 Database Windows

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.

• 1.x

Lotus HAL (1986) 2 Spreadsheet DOS

Lotus HAL (Human Access Language) is a natural-language querying interface for Lotus 1-2-3 r2. That is, one can enter standard English phrases instead of typing "complex" formulas.

• 1.x

Lotus Improv (1991) 2 Spreadsheet Other

Improv is a spreadsheet program that attempted to re-imagine how one would create and interact with spreadsheets. It was first released in 1991 for NeXT computers, and for a time became one of the NeXT's "Killer Apps". In 1993 Lotus released Improv 2.0 for Microsoft Windows. It was not marketed as a direct replacement to Lotus 1-2-3, and 1-2-3 remained dominant until both were overtaken by Microsoft Excel.

• 1.0

Lotus Jazz (1985) 0 Word Processor Spreadsheet Presentations Communications Database MacOS

Lotus Jazz was a heavily marketed all-in-one integrated office suite that included a word processor, spreadsheet, graphing, database, and communications program. Jazz was targeted as a universal solution for all office workers. Although at release, the program was exclusively for the Apple Macintosh 512k. Despite the marketing effort, it flopped miserably. Although it was from Lotus, the spreadsheet was not related to Lotus 1-2-3. Microsoft Works.

• 1.x

Lotus Magellan (1989) 2 Utility Document DOS

Magellan was a desktop file viewer and search tool. It indexes all files on your hard drive, and you can search for related information across file formats.

• 1.0
• 2.0