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TRS-80 Model 4 Software Showcase - Discover and Download the Best TRS-80 Programs


TRS-80 Model 4 Software Download: A Guide for Retro Computing Enthusiasts




If you are a fan of vintage computers, you might be interested in downloading and running software for the TRS-80 Model 4, one of the most popular and successful home computers of the early 1980s. In this article, we will explain what the TRS-80 Model 4 is, why you might want to download software for it, how to do it, and what types of software are available. We will also show you how to run the software on your own TRS-80 Model 4 or on an emulator on your modern computer.


Introduction




What is the TRS-80 Model 4?




The TRS-80 Model 4 was a personal computer released by Tandy Corporation in 1983 as a successor to the TRS-80 Model III. It featured a Zilog Z80 microprocessor running at 4 MHz, 16 KB to 128 KB of RAM, a built-in monochrome monitor, a full-size keyboard, and one or two floppy disk drives. It was compatible with most of the software and hardware designed for the previous models of the TRS-80 line, but also offered improved graphics, sound, and speed. The TRS-80 Model 4 was sold for $1,999 to $2,499, depending on the configuration, and was widely used in schools, businesses, and homes until the late 1980s.




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Why download software for the TRS-80 Model 4?




Downloading software for the TRS-80 Model 4 can be a fun and rewarding way to experience retro computing. You can explore the history and culture of computing in the early 1980s, learn how to use old-fashioned programs and commands, and enjoy some classic games and applications that are still entertaining and useful today. You can also appreciate how far technology has advanced since then, and how much we owe to the pioneers of personal computing.


How to download software for the TRS-80 Model 4?




There are many sources of software for the TRS-80 Model 4 on the internet, where you can find thousands of programs that were originally distributed on floppy disks, cassette tapes, or magazines. Some of these sources are:


  • : This is a comprehensive list of over 15,000 programs that you can run instantly in a TRS-80 javascript emulator or download as disk images or source code files.



  • : This is a searchable database of more than 6,000 programs that you can download as disk images or view their manuals, advertisements, screenshots, and other information.



  • : This is an archive of everything related to the TRS-80 line, including emulators, manuals, books, patches, games, hints, discussions, and more.



</ul Types of software available for the TRS-80 Model 4




The TRS-80 Model 4 had a rich and diverse software library, covering various genres and categories. Some of the most common types of software were:


Operating systems




An operating system is a software that manages the basic functions of a computer, such as loading programs, accessing files, and controlling devices. The TRS-80 Model 4 came with its own operating system, called TRSDOS, but it could also run other operating systems, such as:


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TRSDOS




TRSDOS was the official operating system for the TRS-80 line, developed by Tandy Corporation. It was based on a command-line interface, where the user had to type commands to perform tasks. It supported up to four floppy disk drives, a hard disk drive, a printer, and a modem. It also included some utilities, such as a text editor, a file manager, a backup program, and a debugger. TRSDOS was compatible with most of the software written for the TRS-80 line.


LDOS




LDOS was an alternative operating system for the TRS-80 line, developed by Logical Systems Inc. It was similar to TRSDOS in many aspects, but it offered some improvements and features, such as faster disk access, better memory management, more commands and options, and more device drivers. LDOS was also compatible with most of the software written for the TRS-80 line.


CP/M




CP/M was a popular operating system for 8-bit computers in the late 1970s and early 1980s, developed by Digital Research Inc. It was widely used on many different platforms, such as the Apple II, the Commodore 64, and the IBM PC. CP/M had a command-line interface similar to TRSDOS and LDOS, but it used different commands and syntax. CP/M also had its own software library, which included some famous programs, such as WordStar, VisiCalc, and dBase. CP/M could run on the TRS-80 Model 4 with an optional expansion board that provided a Z80B processor and 64 KB of RAM.


Applications




Applications are software that perform specific tasks or functions for the user, such as word processing, spreadsheet calculation, or database management. The TRS-80 Model 4 had many applications available for various purposes and needs. Some examples of applications were:


Word processors




Word processors are software that allow the user to create, edit, format, and print text documents. The TRS-80 Model 4 had several word processors to choose from, such as:


  • : This was one of the first word processors for personal computers, released in 1976 by Michael Shrayer Software. It was simple and easy to use, but it had some limitations, such as a maximum file size of 16 KB and no support for bold or italic fonts.



  • : This was the official word processor for the TRS-80 line, released in 1978 by Tandy Corporation. It was more advanced than Electric Pencil, offering features such as word wrap, search and replace, block operations, headers and footers, pagination, and printer control.



  • : This was a popular word processor for the TRS-80 line, released in 1980 by Wayne Ratliff Software. It was more powerful than Scripsit, offering features such as multiple windows, undo and redo, spell checker, mail merge, macros, footnotes, tables of contents, and indexes.



Spreadsheets




Spreadsheets are software that allow the user to organize data in rows and columns, perform calculations and analysis on them, and create charts and graphs. The TRS-80 Model 4 had some spreadsheets to choose from, such as:


  • : This was the first spreadsheet program for personal computers , released in 1979 by VisiCorp. It was a revolutionary program that made personal computers useful for business and accounting purposes. It had features such as relative and absolute cell references, formulas, functions, formatting, sorting, and printing.



  • : This was a spreadsheet program that competed with VisiCalc, released in 1980 by Sorcim. It was more advanced than VisiCalc, offering features such as multiple worksheets, 3D cell references, circular references, macros, graphics, and database functions.



  • : This was a spreadsheet program that was part of the Microsoft Office suite, released in 1982 by Microsoft. It was more user-friendly than VisiCalc and SuperCalc, offering features such as menus, help screens, error messages, undo and redo, and mouse support.



Databases




Databases are software that allow the user to store, retrieve, and manipulate data in a structured way. The TRS-80 Model 4 had some databases to choose from, such as:


  • : This was a database program that was part of the TRSDOS operating system, released in 1979 by Tandy Corporation. It was a simple and fast program that used a flat-file structure, where each record had a fixed number of fields. It supported up to 255 fields per record and up to 65,535 records per file. It also had features such as indexing, sorting, searching, filtering, and reporting.



  • : This was a database program that was widely used on many platforms, released in 1980 by Ashton-Tate. It was a powerful and flexible program that used a relational structure, where each record could have a variable number of fields and could be linked to other records. It supported up to 32 fields per record and up to 1 million records per file. It also had features such as commands, queries, forms, reports, and programming.



  • : This was a database program that competed with dBase II, released in 1981 by MicroPro International. It was a user-friendly and versatile program that used a hierarchical structure, where each record could have multiple subrecords and subfields. It supported up to 64 fields per record and up to 16 million records per file. It also had features such as menus, prompts, validation rules, calculations, cross-referencing, and graphics.



Games




Games are software that provide entertainment and challenge for the user. The TRS-80 Model 4 had many games available for various genres and tastes. Some examples of games were:


Adventure games




Adventure games are games that involve exploration, puzzle-solving, and storytelling. The TRS-80 Model 4 had some adventure games to choose from, such as:


: This was one of the first and


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