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99/4 Auto Spell Check, by Dragonslayer ASC, is a spell checker for the TI-99/4A home computer with disk system.


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Acrobat Reader is the free software from Adobe used to read, view, and print documents created by the commercial Adobe Acrobat product. Its primary strength is that documents appear and print identically across differing systems.


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The Apple Lisa Workshop is a set of development tools and a command-line oriented operating environment that was used to develop all software for the Apple Lisa computer. It had variants for multiple languages including Pascal, Cobol, and Basic. Although it was mostly text-based, it did use a GUI code editor. The Workshop ran separately from the Lisa Office System, and developers would switch back and forth while developing their programs.


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AppleWorks is an all-in-one Word Processor, Spreadsheet, Database, Graphics Editor, and Presentations tool. The original product was a text-based product for the Apple II. The Apple Macintosh and Windows versions were forked from ClarisWorks in 1998 by Apple. At the time, Apple was under a lot of pressure to have a direct alternative to Microsoft Office. There were serious concerns that Microsoft might pull Microsoft Office for the Macintosh from development.


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This is a disk operating system and disk tools for Atari 400/800 computers, a series of 6502 CPU based 8-bit computer sold by Atari from 1979 to 1984.


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Balance of power is a strategy game where one must lead a superpower nation to avoid war. It was ported to the Mac, Apple II, Windows, Atari ST, and Amiga.


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First released in 1984, Banyan VINES (Virtual Integrated NEtwork Service) was a network operating system originally designed for Unix, initially based on Xerox XNS. It was considered fairly lightweight both on clients and servers and used minimal bandwidth. It featured an early directory services system prior to either Novel or Microsoft.


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BeOS was an OS developed to run on the BeBox hardware, a PowerPC based machine. The OS was first released in October 1995 for use on the AT&T Hobbit, and later moved over to the PowerPC platform the next year. A Intel x86 port of the OS began in March 1998 with version R3. The last version released was R5.1 in November 2001 for x86 only. This OS was meant to be used for multimedia applications. It is POSIX compatible but is not a UNIX derived operating system (Windows is actually POSIX complient also).


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CalcStar is a spreadsheet from MicroPro, somewhat like VisiCalc but using commands similar to WordStar. You can also format content similar to WordStar. It was available for CP/M and DOS, and often part of early 80s system's bundled software.


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Digital Research CBASIC is a BASIC implementation that "compiles" basic code in to interpreted byte code that is run using a royalty-free runtime. BASIC source code is not needed to run a program. CBASIC was a popular programming language under CP/M. There were also versions for MS-DOS. MBASIC's rounding errors that were sometimes troublesome for accounting. machine code. Later versions also included support for GSX graphics extensions.


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Released by Cdex in 1983, this is an interactive training program that will teach you how to use VisiCalc. Cdex also sold training programs for WordStar, SuperCalc, EasyWriter ||, The IBM Personal Computer, and The Apple //e Personal Computer. There were versions for both the IBM PC an Apple II.


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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.


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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.


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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.


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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.


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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.


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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.


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


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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.


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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.


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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.


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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.


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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.


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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".


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FontWorks is a utility that prints documents using high quality fonts on a dot-matrix printer. It was commonly sold as a companion product to AppleWorks on the Apple II. It can print sideways, it includes a number of high quality fonts, and includes a font editor.