Values in TRS-80 Level 2 BASIC may have one of four types: integer, single- or double-precision floating point, or string. Throughout this document, values beginning withIhave integer type, values beginning withFhave single-precision floating point type, values beginning withDhave double-precisio...
The Model I began with a $599 Level I System with 4K RAM, monitor, and cassette, with all cables and adapters ready to go (except that it took 3 plugs, so you probably needed to purchase a power strip). The Level 1 was soon replaced by a 16K Level II System. The Level II (firs...
"Big-80" is a implementation of a TRS-80 Model 1 in an FPGA. This post describes the video controller which can be divided into two main parts: the VGA timing circuitry and the TRS-80 pixel generation. Quick note: in these posts I'm going to focus more on describing how things work...
The Model I motherboard has only 1 bank of DRAM, which can 4k or 16k. If the system has 16k, then an additional 32k can be installed in an attached expansion interface. For the ROM position in the Level II PCB, you must figure out which ROM is the lower ROM. You may have to loo...
The TRS-80 Model 100 was introduced in 1983 and was one of the first notebook-style computers. It features an 8-bit processor and 32k of RAM. Trammel Hudson came across one of these and while it’s motherboard had failed, the LCD and keyboard were still working. He decided to take ...
Level II 1. Place the tape in the Cassette Recorder and press "PLAY". 2. Model III Users Only: When CASS? appears on the screen, type . 3. When MEMORY SIZE? appears, press [ENTER]. 4. When READY appears, type [SYSTEM] and press [ENTER]. ...
The TRS-80 Micro Computer System (renamed the Model I) is a desktop microcomputer launched in 1977 and sold by Tandy Corporation.
Currently it can simulate the Sega Genesis, Computie (68000), and the TRS-80 Model I (Z80). Support for the Macintosh 512k is partially implemented but the ROM still wont boot. For more details on how it works, check out this post about how I started the project:Making a 68000 Emula...
Model I Insert a TRSDOS diskette in Drive m. Insert the Bedlam tape into the cassette recorder. Make sure the cassette is fully rewound and the "Play" key is down. Press the Reset button on the TRS-80. DOS READY will appear on the screen. Type: [DEBUG] and press [ENTER]. DOS REA...
Model NO. FWZ110010 Color Customized Color Process Type Silver Brazed Transport Package Cartoons or Pallets Specification 60*10*2.5*80*M14 Trademark FEWELL Origin Jiangsu, China HS Code 8207501000 Production Capacity 50000pieces/Month Product Descr...