In microcomputers, SWTPC's 6800 and 6809 machines used TSC's FLEX disk operating system, Radio Shack's TRS-80 machines used TRS-DOS, their Color Computer used OS-9, and most of the Intel 8080 based machines from IMSAI, MITS ( makers of the legendary Altair 8800 ), Cromemco, North Star, etc., used the CP / M-80 disk operating system.

The Dragons are very similar to the TRS-80 Color Computer ( CoCo ), and were produced for the European market by Dragon Data, Ltd., in Port Talbot, Wales, and for the US market by Tano of New Orleans, Louisiana.

Both the Dragon and the TRS-80 Color Computer are based on a Motorola data sheet design for the MC6883 SAM ( MMU ) chip for memory management and peripheral control.

Category: TRS-80 Color Computer

The illegal instruction fetch is not maskable, and many TRS-80 Color Computer users reported that their 6309's were " buggy " when in reality it was an indicator of enhanced and unknown features.

The TRS-80 Color Computer, IBM PCjr, MSX, and BBC Micro from Acorn Computers all contained a built-in relay for controlling an external tape recorder.

The 6809E was used in the TRS-80 Color Computer ( CoCo ), the Acorn System 2, 3 and 4 computers ( as an optional alternative to their standard 6502 ), the Fujitsu FM-7, the Welsh-made Dragon 32 / 64 home computers, and the SWTPC, Gimix, Smoke Signal Broadcasting, etc.

# REDIRECT TRS-80 Color Computer

The best known hardware ( due to its low price and broad distribution ) was the TRS-80 Color Computer ( CoCo ) and its clones such as the British Dragon series.

Category: TRS-80 Color Computer

All Tandy 1000 computers featured built-in Tandy video hardware with color graphics ( CGA compatible with enhancements ), enhanced sound ( based on one of several variants of the Texas Instruments SN76496 sound generator ), game ports compatible with those on the TRS-80 Color Computer, an IBM-standard floppy disk controller supporting two drives, and a parallel printer port, all integrated into the motherboard.

This was especially true when OS-9 was available for popular 6809-based computers such as the FM-7, FM-77, and the Tandy TRS-80 Color Computer and its near-clone, the Dragon.

Category: TRS-80 Color Computer

Though originally designed for the Apple II, the Koala eventually broadened its applicability to practically all home computers with graphics support, examples of which include the TRS-80 Color Computer, Commodore 64, and Atari 8-bit family.

* Color BASIC ( TRS-80 Color Computer )

* Extended Color BASIC ( TRS-80 Color Computer and Dragon 32 / 64 )

A Macintosh version was released in 1987 and a port was released for the TRS-80 Color Computer in 1989.

Category: TRS-80 Color Computer games

Among them were DOS ( as a booter ), Amiga 1000, Apple II, Atari 400 / 800, Atari 2600, Atari 5200, Atari XL, MSX, ZX Spectrum, Commodore 64, Dragon 32, ColecoVision, Intellivision, Sega SG-1000 and TRS-80 Color Computer.

Unauthorized adaptations of the game were published for the TI 99 / 4A ( as Arcturus ), Amstrad CPC ( as Zaxx ), BBC Micro ( as Fortress ), and the TRS-80 Color Computer ( as Zakssund ).

The Tom Mix Software Company made a clone called Brewmaster for the TRS-80 Color Computer.

The KoalaPad is a graphics tablet produced from 1984 by U. S. company Koala Technologies for several early 8-bit home computers, including the Apple II family, TRS-80 Color Computer ( TRS-80 Touch Pad ), Atari 8-bit family, and Commodore 64, as well as for the IBM PC.

So they decided to designed a TRS-80 and CP / M software compatible computer system, which ( following the lead of Apple Computer ) they decided to name after a " typical Dutch flower ".

* Tandy & TRS-80 Computer Catalogs, Radio Shack Catalogs

On the PC side, the 8 " diskette disappeared with the TRS-80 Model II Business Computer ; the 5¼ " diskette became the IBM PC standard in 1981 and the 3½ " diskette was first introduced by IBM with the announcement of the PC Convertible in 1986.

The TRS-80 Pocket Computer

* TRS-80 ( Tandy Radio Shack and clones )

This was the only official port but as with most arcade games of the time, there were many unofficial clones for home computers including Acornsoft's Crazy Tracer ( BBC Micro, Acorn Electron ), Microdeal's Cuthbert Goes Walkabout ( Dragon 32 / 64, TRS-80 CoCo, Commodore 64, Atari 8-bit family ), Llamasoft's Traxx ( Vic-20, ZX Spectrum ), Superior Software's Crazy Painter ( BBC Micro ) and Gapper and Rollo And The Brush Bros ( DOS ).

After the Aster having been a few years on the Market Tandy released its own improved model, the TRS-80 Model 3 computer which solved many of the same problems that the Aster also had solved, but the model 3 still did not fully support CP / M as the Aster did.

Jay decided after listening back to his recordings in progress that the music was still TRS-80 and to continue on under the same name.

The Dragon has additional circuitry to make the MC6847 VDG compatible with European 625-line television standards, rather than the US 525-line NTSC standard, and a Centronics parallel printer port not present on the TRS-80.

** The Tandy Corporation TRS-80 Model I computer is announced at a press conference.

TRS-80 is an electronic music group formed in Chicago in 1997 and led by founding member, Jay Rajeck.

TRS-80 was started by Rajeck and Kent Rayhill in their hometown of Chicago, with Deb Schimmel joining them early on.

At its introduction, the 68000 was first used in high-priced systems, including multiuser microcomputers like the WICAT 150, early Alpha Microsystems computers, Sage II / IV, Tandy TRS-80 Model 16, and Fortune 32: 16 ; single-user workstations such as Hewlett-Packard's HP 9000 Series 200 systems, the first Apollo / Domain systems, Sun Microsystems ' Sun-1, and the Corvus Concept ; and graphics terminals like Digital Equipment Corporation's VAXstation 100 and Silicon Graphics ' IRIS 1000 and 1200.

Multiplan was released first for computers running CP / M ; it was developed using a Microsoft proprietary p-code C compiler as part of a portability strategy that facilitated ports to systems such as MS-DOS, Xenix, Commodore 64, Texas Instruments TI-99 / 4A, Radio Shack TRS-80 Model II, TRS-80 Model 100 ( on ROM ), Apple II, and Burroughs B-20 series.

The TRS-80 adventure game Haunted House – one of the few commercial adventure games playable with only 4K of RAM – requires the player to type PLUGH to enter the haunted house ; another TRS-80 game, Bedlam, replies to PLUGH with " You got better.

Through an evaluation and bidding process, the Apple II was chosen by MECC for state schools over other candidates, such as the Radio Shack TRS-80 ; the win was an important early deal in the history of Apple Inc. Any school in the state could buy Apple computers through MECC for a substantial discount without having to go through complex evaluation and purchasing procedures.

; 1980: < ul >< li > January: First generation: FS1 for the Apple II, 4 color / monochrome, with a 2-gauge panel ( airspeed, altitude ), on cassette tape .</ li >< li > March: First release of FS1 for the Tandy TRS-80 ( 16 Kb ), monochrome, without panel, on cassette tape .</ li ></ ul >

; 1982: < ul >< li > New release of FS1 for the TRS-80 with enhancements, on 5¼ " floppy </ li >< li > November: Second generation: Microsoft releases FS 1. 0 ( created by subLOGIC ) for the IBM-PC: 4 color (+ dithering ), panel with 8 gauges, new coordinate system, 4 scenery areas ( 20 airports ), 2 COM radios and DME ( no ADF ), 9 view directions, weather, slew, simulated aircraft is a Cessna 182 .</ li ></ ul >

; 1978: Howard Wolowitz develops Electric File Clerk for the TRS-80 Model II.

; 1983: Profile 16 is released for the TRS-80 Model 16 running Xenix.

Originally released for the Atari 8-bit computers in 1982, it was later ported to a number of platforms including the VIC-20, Commodore 64, TRS-80 Color Computer, TI-99 / 4A, IBM PC and Nintendo Game Boy Color ; several of these ports were made by Atarisoft.

Since the common data storage medium of the earliest home computers was the audio cassette, the first magazine published on a physical computer medium was actually a cassette magazine rather than a disk magazine ; CLOAD magazine, for the Radio Shack TRS-80 computer, began publication in 1978, named after the command to load a program from cassette on that computer system.