Dragon 32/64

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  • Dragon 32
  • Dragon 64
Dragon 32.jpg
A Dragon 32 home computer
Also known asDragon 200, Dragon 200-E
Manufacturer Dragon Data
Type Home computer
ReleasedAugust 1982;43 years ago (1982-08)
Discontinued1987;39 years ago (1987) [1]
Operating system Microsoft Extended BASIC
CPU Motorola 6809E @ 0.89 MHz
Memory32 KB/64 KB
Display Composite monitor or TV over RF output, 64×48 with 8 colours semigraphics, 128×192 with 4 colours, 256×192 with 2 colours
Graphics MC6847 Video Display Generator
Sound1-bit sound

The Dragon 32 and Dragon 64 are 8-bit home computers that were built in the 1980s. The Dragons are very similar to the TRS-80 Color Computer, and were produced for the European market by Dragon Data, Ltd., initially in Swansea, Wales, before moving to Port Talbot, Wales (until 1984), and by Eurohard S.A. in Casar de Cáceres, Spain (from 1984 to 1987), and for the US market by Tano Corporation of New Orleans, Louisiana. The model numbers reflect the primary difference between the two machines, which have 32 and 64 kilobytes of RAM, respectively.

Contents

Dragon Data introduced the Dragon 32 microcomputer in August 1982, followed by the Dragon 64 a year later. Despite initial success, the Dragon faced technical limitations in graphics capabilities and hardware-supported text modes, which restricted its appeal in the gaming and educational markets. Dragon Data collapsed in 1984 and was acquired by Spanish company Eurohard S.A. However, Eurohard filed for bankruptcy in 1987.

The Dragon computers were built around the Motorola MC6809E processor and featured a composite monitor port, allowing connection to (at the time) modern TVs. They used analog joysticks and had a range of peripherals and add-ons available. The Dragon had several high-resolution display modes, but limited graphics capabilities compared to other home computers of the time.

The Dragon came with a Microsoft BASIC interpreter in ROM, which allowed instant system start-up. The Dragon 32/64 was capable of running multiple disk operating systems, and a range of popular games were ported to the system.

Overall, the Dragon computers were initially well-received but faced limitations that hindered their long-term success.

Dragon 32 vs. Dragon 64

Aside from the amount of RAM, the Dragon 64 also has a functional RS-232 serial port which was not included on the Dragon 32. A minor difference between the two Dragon models is the outer case colour; the Dragon 32 is beige and the Dragon 64 is light grey. Besides the case, branding and the Dragon 64's serial port, the two machines look the same. The Dragon 32 is upgradable to Dragon 64. In some cases, buyers of the Dragon 32 found that they actually received a Dragon 64 unit. [2]

Product history

Dragon logo Dragon sign in Valetta.jpg
Dragon logo

Dragon Data entered the market in August 1982 with the Dragon 32. The Dragon 64 followed a year later. The computers sold well initially and attracted the interest of independent software developers including Microdeal. A companion magazine, Dragon User , began publication shortly after the microcomputer's launch.

Despite this initial success, there were two technical impediments to the Dragon's acceptance. The graphics capabilities trailed behind other computers such as the ZX Spectrum and BBC Micro, a significant shortcoming for the games market. [1] Additionally, as a cost-cutting measure, the hardware-supported text modes only included upper case characters; this restricted the system's appeal to the educational market. [1]

Dragon Data collapsed in June 1984. [3] It was acquired by the Spanish company Eurohard S.A., which moved the factory from Wales to Cáceres and released the Dragon 200 (a Dragon 64 with a new case that allowed a monitor to be placed on top) and the Dragon 200-E (an enhanced Dragon 200 with both upper and lower case characters and a Spanish keyboard), but ultimately filed for bankruptcy in 1987. The remaining stock from Eurohard was purchased by a Spanish electronics hobbyist magazine and given away to those who paid for a three-year subscription, until 1992.

In the United States it was possible to purchase the Tano Dragon new in box until early 2017 from California Digital, a retailer that purchased the remaining stock. [4]

Reception

BYTE wrote in January 1983 that the Dragon 32 "offers more feature for the money than most of its competitors", but "there's nothing exceptional about it". The review described it as a redesigned, less-expensive Color Computer with 32K RAM and better keyboard. [5]

Technical notes

Hardware and peripherals

The Dragon is built around the Motorola MC6809E processor running at 0.89 MHz. It was an advanced 8-bit CPU design, with limited 16-bit capabilities.

It was possible to increase the speed of the computer by using POKE 65495,0 which accelerated the ROM-resident BASIC interpreter, but temporarily disabled proper functioning of the cassette/printer ports. Manufacturing variances mean that not all Dragons were able to function at this higher speed, and use of this POKE could cause some units to crash or be unstable, though with no permanent damage. POKE 65494,0 returned the speed to normal. POKE 65497,0 pushed the speed yet higher but the display was lost until a slower speed was restored.

The Dragon used the SN74LS783/MC6883 Synchronous Address Multiplexer (SAM) and the MC6847 Video Display Generator (VDG). I/O was provided by two MC6821 Peripheral Interface Adapters (PIAs). Many Dragon 32s were upgraded by their owners to 64 KB of memory. A few were further expanded to 128 KB, 256 KB, or 512 KB with home-built memory controllers/memory management units (MMUs).[ citation needed ]

A broad range of peripherals exist for the Dragon 32/64,[ vague ] and there are add-ons such as the Dragon's Claw which give the Dragons a port that is hardware-compatible with the BBC Micro's user port, though separate software drivers for connected devices must be developed. Although neither machine has a built-in disk operating system (Compact Cassettes being the standard storage mechanism commonly used for machines of the time), DragonDOS was supplied as part of the disk controller interface from Dragon Data Ltd. The versatile external ports, including the standard RS-232 on the 64, also allows hobbyists to attach a diverse range of equipment.[ vague ]

The computer featured a composite monitor port as an alternative to the TV RF output which can be used to connect the Dragon 32 to most modern TVs to deliver a much better picture.

The Dragon used analogue joysticks, unlike most systems of the time which used simpler and cheaper digital systems. Other uses for the joystick ports included light pens.

Tony Clarke and Richard Wadman established the specifications for the Dragon. [6]

The units had a robust motherboard in a spacious case, reminiscent of the BBC Micro, and so were more tolerant of aftermarket modification than some of their contemporaries, which often had their components crammed into the smallest possible space.

Video modes

The Dragon's main display mode is 'black on green' text (the black was, in actuality, a deeper, muddier green). The only graphics possible in this mode are quarter-tile block based.

It also has a selection of five high-resolution modes, named PMODEs 0–4, which alternate monochrome and four-colour in successively higher resolutions, culminating in the black-and-white 256×192 PMODE 4. Each mode has two possible colour palettes – these are rather garish and cause the system to fare poorly in visual comparisons with other home computers of the time. It is also impossible to use standard printing commands to print text in the graphical modes, causing software development difficulties. [7]

Full-colour, scanline-based 64×192 semi-graphics modes are also possible, though their imbalanced resolution and programming difficulty (not being accessible via BASIC) meant they were not often utilised.

Disk systems

Delta DOS Interface DeltaDos Top-xavax.png
Delta DOS Interface

First to market was a complete disk operating system produced by Premier Microsystems, located near Croydon. The system was sold as the "Delta" disk operating system; there was a proposal for Dragon to market this as an addon. Dragon did not enter into such an agreement and instead produced the DragonDOS system. The two systems were incompatible.

Delta's lead in availability ensured that software was released in the format, whilst Dragon's "official" status ensured that it, too, gained software published in its format. This led to confusion and frustration, with customers finding they had either purchased a version incompatible with their setup, or that the software was only available for the competing standard.

System software

The Dragon comes with a Microsoft BASIC interpreter in 16 KB of ROM. The BASIC appears to be nearly identical to Tandy Color Computer's Extended Basic with a few changes necessary to interact with the Dragon system. [6]

In common with home computers of the time, the entire operating software was included on a ROM chip; therefore, the system starts instantly when powered up.

Some software providers also produced compilers for BASIC and other languages to produce binary (or "machine") code which would run many times faster and make better use of the small system RAM. Towards the end of its life, Dragon Data produced an assembler/disassembler/editor suite called Dream.

In addition to the DragonDOS disk operating system, the Dragon 32/64 is capable of running several others, including FLEX, and even OS-9 which brought UNIX-like multitasking to the platform. Memory-expanded and MMU-equipped Dragons are able to run OS-9 Level 2.

Games

Manic Miner (Software Projects) had to run in black and white. Dragon Manic Miner.gif
Manic Miner (Software Projects) had to run in black and white.

Initially, the Dragon was reasonably well supported by the major UK software companies, with versions of popular games from other systems being ported to the Dragon. Top-selling games available for the Dragon include Arcadia (Imagine), Chuckie Egg (A&F), Manic Miner and sequel Jet Set Willy (Software Projects), Hunchback (Ocean) and Football Manager (Addictive). There were also companies that concentrated on the Dragon, such as Microdeal. Their character Cuthbert appeared in several games, with Cuthbert Goes Walkabout also being converted for Atari 8-bit and Commodore 64 systems.

Due to the limited graphics modes of the Dragon, converted games had a distinctive appearance, with colour games being usually played on a green or white background (rather than the more common black on other systems) or games with high-definition graphics having to run in black and white.

When the system was discontinued, support from software companies also effectively ended. However, Microdeal continued supporting the Dragon until January 1988. Some of their final games developed for the Dragon in 1987 such as Tanglewood and Airball were also converted for 16-bit machines such as the Atari ST and Amiga.

There are 798 commercial games for the Dragon 32. [8]


NameYearPublisher
3D Lunattack1984 Hewson Consultants
3-D MazeApex Trading
3D Seiddab Attack1984 Hewson Consultants
3D Space Wars1984 Hewson Consultants
5 Games TapeDatacom Publications
6809 Express1985Quickbeam Software
747 Flight Simulator1984DACC Ltd
A ContarEurohard
A Week At The Races1983B & H Software
Ace In The H.O.L.E.Kayde Software
AcolyteDragonfire Services
Action PackShards Software
Adventure PlusPremier Microsystems
Adventure TrilogyDragon Data
AdventurelandAdventure International
After The FireChannel 8 Software
AggressorProgrammers Guild
Air Assault1984Datacom Publications
Air Sea MissileTwig Systems Software
Air Traffic Control1983 Microdeal
Airball Microdeal
Albert And The MonstersAlgray
Alcatraz II1982 Microdeal
Alien Blitz1982Gem Software
Alien Oddessy Parts 1 & 2Bamby Software
Aliens+Wizard Software
All Systems GoAnik Microsystems
AmazingBamby Software
And All Because1983B & H Software
Android Invaders1984Lyversoft
AnikmanAnik Microsystems
AntigravityDragonfire Services
ApplesComputerware
Aquanaut 471 Microdeal
Arcade Action (Meteor Run / Breakout)Apex Trading
Arcadia1984Imagine
Arcane QuestKayde Software
Area Radar ControllerSoftware For All
Arrow Of Death Part 11983Channel 8 Software
Arrow Of Death Part 21983Channel 8 Software
Astroblast1982Dragon Data
Athletyx1985 Microdeal
AtlantisQed Systems
Atom HuntActive Software
Attack1982PSS
AutorunDatacom Publications
Avenger1983Voyager Software
A-Z Chase / Money Bags1982Apex Trading
Baby Dragon (Koko/Teddy)1983Gravesend Home Computers
Baccarat1983Cable Software
Back Track1984Incentive Software
Backgammon (Microdeal)1983 Microdeal
Backgammon (Oasis)Oasis Software
BagitmanAardvark-80
BanditoPocket Money Software
Barmy Burgers1984Blaby Computer Games
Basil Goes Ballooning1984Sir Basil Spice Software
Battle StationsAnik Microsystems
Bc BillImagine
Beam Rider1984 Microdeal
Bean PatchOrange Software
BeanpatchMicrovision
BeanstalkerMicrovision
BerserkDragon Data
Best Of Pcw - Software For The DragonCentury Software
Beyond The Cimeeon MoonDragon Data
Beyond The InfiniteChannel 8 Software
Big SixAudiogenic
Black SanctumDragon Data
Blackjack / Jackpot1983B & H Software
Bloc HeadDragon Data
Blockbuster QuizComputerware
Blockbuster Quiz IIComputerware
Bombs Away Basil1984Blaby Computer Games
Bonka1983J. Morrison (Micros)
BopswizzleBamby Software
Boris The Bold1984Blaby Computer Games
Boulder Crash1984Blaby Computer Games
Breakout / Middle KingdomDragon Data
Bridge MasterDragon Data
Brocks KingdomBlaby Computer Games
Bubble Buster1984Microdeal/Pocket Money Software
Bug Diver1984Mastertronic
Bugged!Dungeon Software
Bumpers1984Dragon Data
Bust-Out!Dragonfire Services
Buzzard BaitMicrodeal / Tom Mix
California Gold RushAnik Microsystems
Calixto IslandDragon Data
CambridgeTwig Systems Software
Cashman Microdeal
Cassette 501983Cascade
Castle AdventureVirgin
Castle Blackstar1984CDS Micro Systems
Castle of Doom1986Giant Byte
Cat 'N' Mouse / Space MazeDiand Software
Catacomb CrisisMicrovision
CatacombsPremier Microsystems
Cave Fighter1983Cable Software
Cave HunterDragon Data
Caverns Of Chaos1984Blaby Computer Games
Caverns Of Doom Microdeal
CC Poker1983Compusense
Cells & SerpentsAsp Software
Cesil InterpreterWizard Software
Chambers1984 Microdeal
Champions!Peaksoft
Championship Darts1984Shadow Software
Chateau1983Gem Software
ChessJ. Morrison (Micros)
Children from SpaceDragon Data
Chuckie Egg 1985A & F Software
Cimeon MoonDragon Data
CircusChannel 8 Software
Circus AdventureDragon Data
City DefenceShards Software
ClownsWizard Software
Colossal Cave (Compusense)Compusense
Computa FruitaWizard Software
Confuzion1985Incentive Software
Connect 4Computerware
Conquering Everest1983Asp Software
Convoy AttackRomik Software
Copta Snatch1984Blaby Computer Games
Copter PatrolJ. Morrison (Micros)
Cores 641984 Microdeal
Cosmic ClonesDragon Data
Cosmic Cruiser1984Imagine
Cosmic Crusader1984Blaby Computer Games
Cosmic Zap1983 Microdeal
Courier PilotProgrammers Guild
CrankyDragon Data
Crash1984 Microdeal
Crazi PlumberWizard Software
Crazy FootaComputape
Crazy Foota 2Computape
Crazy Foota 31988Orange Software
Crazy Painter Microdeal
Creepies / To Boldly GoBlaby Computer Games
CribbagePremier Microsystems
Cruising on Broadway1983Sunshine
CrusaderJ. Morrison (Micros)
C-TrekCompusense
CU*BER1984Tom Mix Software
Curse of CarmacPSE Computers
Curse of Comarc1986Microvision
Cuthbert And The Golden Chalice1986 Microdeal
Cuthbert Goes Digging1983 Microdeal
Cuthbert Goes Walkabout Microdeal
Cuthbert In Space Microdeal
Cuthbert In The Cooler1985 Microdeal
Cuthbert In The Jungle1983 Microdeal
Cuthbert In The Mines1983 Microdeal
CyclopsRomik Software
Cyrus ChessDragon Data
DAMS1988Orange Software
Danger Island1984Software For All
Danger Ranger1983 Microdeal
Danger!PSE Computers
Dark StarDesign Design
DartsComputerware
Data FallMicrodeal/Pocket Money Software
Dataplan1982PSS
Deadwood (Early Green Inlay)A & F Software
Death CruiseVirgin
Death Mines Of Sirus1983Phoenix Software
Death'S Head HolePeaksoft
Decathlon (Dragonfire)Dragonfire Services
Decathlon (Wizard Software)Wizard Software
Defense Microdeal
Demolition Derby1984 Microdeal
Demon KnightAsp Software
Demon Seed Microdeal
Desert GolfCompusense
Desperado DanBlaby Computer Games
Destiny Trilogy1987Pulser Software
DetectiveAsp Software
Detonate / The AlienBlaby Computer Games
Devil Assault1983 Microdeal
Devils Island1983Apex Trading
Devils TriangleAbacus
Diamond DashStarship Software
Diamond Dash 2Starship Software
Diamond ManorDragonfire Services
Dickie Space ManQuickbeam Software
Dickie'S Den1985Quickbeam Software
DismonWizard Software
Dodo1983Preston (R & AJ)
Dominoes (Oasis)Oasis Software
Donkey King1982 Microdeal
Don'T PanicPeaksoft
Dont SquealDragonfire Services
Doodle BugDragon Data/Microdeal/Computerware
DoomPSE Computers
Downland1984 Microdeal
Draconian1984 Microdeal
Dragbug1982PSS
Dragon 11983Dream Software
Dragon 2J. Morrison (Micros)
Dragon 3D O'S & X'S / Invader CubeOasis Software
Dragon 41983J. Morrison (Micros)
Dragon 55Nemesis
Dragon Birthday SpecialDragon Data
Dragon ChallengePremier Microsystems
Dragon CharsetAsn Computers Ltd
Dragon ChessOasis Software
Dragon Darts1984Blaby Computer Games
Dragon Double (Switchback, Alphasquare)Mr Micro
Dragon Games 1 (Othello, Breakout, Awari, Lander, Raffles)J. Morrison (Micros)
Dragon Games PackProgram Direct
Dragon Games Tape 2J. Morrison (Micros)
Dragon Games Tape 4 (Pteradactyl / Torpedo / Hornets)J. Morrison (Micros)
Dragon Hawk1983 Microdeal
Dragon Invaders1982 Microdeal
Dragon MountainDragon Data
Dragon OthelloAsn Computers Ltd
Dragon Personal PackPremier Microsystems
Dragon Racer / Wasp Invasion1983Cable Software
Dragon Selection 1Dragon Data
Dragon Selection 2Dragon Data
Dragon Selection 3Dragon Data
Dragon Selection 4Dragon Data
Dragon Selection 5Dragon Data
Dragon StartrekWizard Software
Dragon Strategy PackPremier Microsystems
Dragon TowerPremier Microsystems
Dragon Trek1983Wintersoft Software
Dragonfly Hewson Consultants
Dragonfly II Hewson Consultants
Dragopoly (Free Parking)B & H Software
Dragrunner1983Cable Software
DragstoneDragonfire Services
Drawcaster - Australian Pools1984Acepak Software
Drawcaster - British Pools1984Acepak Software
Dream MachineDragonfire Services
DroidsJ. Morrison (Micros)
Drone Datatank1983Cable Software
Dungeon DestinyMicrovision
Dungeon Raid Microdeal
Dungeons Of DeathPremier Microsystems
Eager EdnaCable Software
Earth RescueAbacus
Eddie Steady Go!1985Incentive Software
Eight Ball1984 Microdeal
El BanditoDragon Data
El DiableroDragon Data
Election FeverWhitsoft
ElectronTom Mix Software
El-Pea1986Microvision
Empire1983Shards Software
Encoder 091983Premier Microsystems
Endless Noughts And CrossesR&P International
Enter The Dragon Melbourne House
Escape Microdeal
Escape Form Pulsar 7Channel 8 Software
Escuela de pilotos F11982Salamander Software
Everest1983Salamander Software
EvictorWizard Software
ExecutionDatacom Publications
Exploring Adventures On The DragonDucksoft
Fairground FantasyAbrasco Ltd
Fantasy FightCable Software
Fearless FreddyMicrodeal/Pocket Money Software
Feasibility ExperimentChannel 8 Software
Fembots' RevengeDragon Data
Filmaster1985 Microdeal
Final CountdownDragon Data
FingersBlaby Computer Games
Fire ForceQuickbeam Software
FireballAbacus
Fish Van Scandal1989Orange Software
Fishy BusinessSalamander Software
FlagDragon Data
FlightDragon Data
Flight SimulatorPSS
Flipper Microdeal
Folly Farm's Chicken Run1984Impsoft
Football ManagerAddictive Games
Forbidden CityApex Trading
Forest Of DoomOrange Software
Formula OnePamcomms
FrankieQuickbeam Software
Franklin In WonderlandSalamander Software
Franklin's Tomb Salamander Software
Free ParkingActive Software
Frogger1983 Microdeal
FroggyGalactic Software
Frog-HopBamby Software
FrogletCRL
Fruit MachineBlaby Computer Games
FruityDragon Data
Fun and GamesShards Software
Fury Microdeal
Galactic Ambush1983 Microdeal
Galactic GusQuickbeam Software
Galactic RaidersAlgray
Galactic SlugsBamby Software
Galactic TaipanHornet Software
Galacticans1984Softek
Galagon Microdeal
Galax AttaxDragon Data
Gallactic Survival PakAnik Microsystems
GalleonsWizard Software
Game Of Life (For Dasm)Compusense
Games CompendiumSalamander Software
Games Pack 1 (Abacus)Abacus
Games Pack 1 (Oasis)Oasis Software
Games Pack 2Abacus
Games Pack 3Abacus
Games Pack I1982Gem Software
Games Pack IIGem Software
Games Pack IIIGem Software
Games Pack IV (Sea Harrier / Sub Chase)Gem Software
Games Tape 1 (Active Software)Active Software
Games Tape 1 (B & H Software)B & H Software
Games Tape 2 (Active Software)Active Software
Games Tape 2 (Space Attack / Caterpillar)Apex Trading
Gee Up NeddyAnik Microsystems
Ghost AttackDragon Data
Ghost TownAdventure International
Giants Castle1983Dungeon Software
Gis A JobBlaby Computer Games
Glaxxons Microdeal
Goblin CavesApex Trading
Golden Apples Of The Sun1983Bamby Software
Golden Oldies IIPamcomms
Golden VoyageAdventure International
Golf (Apex Trading)Apex Trading
Golf (Audiogenic)Audiogenic
Golf (Gem Software)Gem Software
Golf (Microdeal)1983Microdeal / Tom Mix
Golf (PSS)PSS
Golf (Salamander Software)1983Salamander Software
Gordon Bennet1985Computape
Grabber Microdeal
Grand PrixSalamander Software
GridrunnerSalamander Software
GuardianHornet Software
Guardian AngelBlaby Computer Games
Halcon (ES)Cibercomp SA
Handicap GolfCRL
Hang It!Peaksoft
Hareraiser (Finale)Haresoft
Hareraiser (Prelude)Haresoft
Hide & SeekDragon Data
HoleDragonfire Services
Home BaseCable Software
Hooked!Shards Software
Horace Goes Skiing Melbourne House
Horror AtollKayde Software
Horror Castle1983A & F Software
Hotel On MayfairDatacom Publications
HubertBlaby Computer Games
HunchbackOcean Software
Hungry Horace Melbourne House
I ChingVirgin
Ice CastlesSpectral Associates
If I Had A MillionPhoenix Software
ImpossiballPulser Software
Impossiball!Dragonfire Services
Indoor FootballQuickbeam Software
Inform1984Premier Microsystems
Inspector ClueseauEurosoft
Intelligent Disk CopierDragonfire Services
Intergalatic Force1983 Microdeal
Interplanetary TraderBamby Software
Invader / SimonApex Trading
InvadersAlligata
Invaders Revenge1982 Microdeal
Island AdventureApex Trading
JawsAlligata
Jerusalem Adventure 21982 Microdeal
Jet Boot ColinPocket Money Software
Jet Set Willy 1983 Software Projects
Johnny Reb1983Lothlorien
Journey To The Centre Of PhobosDragonfire Services
Jumbos Troubles1985Wizard Software
JumpjetDragon Data
Jungle JuiceFantasy Software
Junior's Revenge1983Dragon Data/Microdeal/Computerware
Juxtaposition: Barons of Ceti VWintersoft Software
Karma CarzyBlaby Computer Games
Katerpillar IITom Mix Software
Keys Of RothCRL
Keys Of The Wizard Microdeal
Kids Pack 1 (Dam Attack / Hangman)1988Dragonfire Services
King Of ValleyAbacus
King Tut Microdeal
Klartz And The Dark ForcesDungeon Software
KriegspielBeyond
Kung Fu - The MasterBlaby Computer Games
Land Of TezrelOmen
Larkspur Waldorf 2PSE Computers
Laser BlastBlaby Computer Games
Laser GatesJ. Morrison (Micros)
Laser RacerCRL
Laser Run1984Blaby Computer Games
Laser ZoneSalamander Software
Lazer Cycles / Mission Dru / Hangman / BreakoutLasersound Software
Leggit!1983Imagine
Leopard LordKayde Software
Line Up 4Terminal Software
LinkwordComputerware
Lion HeartPeaksoft
LivingstoneCable Software
Lord Of The DragonItem Limited
Lost In SpaceSalamander Software
Lucifer'S KingdomOrange Software
Lunar RescueB & H Software
Lunar Rover PatrolDragon Data/Microdeal
MacDougal's Last Stand1984Blaby Computer Games
Mad MontyScreenplay
Madness & The MinotaurDragon Data
Man Hunt1984Omen
Manic Miner 1984 Software Projects
Mansion Adventure 1 Microdeal
Mansion of DoomDragon Data
Master Cards PlayerProgram Direct
MatchmakerOrange Software
Maths Games PackPremier Microsystems
Maths Trek1983Dungeon Software
Maurice Minor1983J. Morrison (Micros)
Mazerace / Spellbase1985Dragonfire Services
Metal-On-MetalQuickbeam Software
MeteoroidsDragon Data
MicropolyTemptation Software
Mid WinterChannel 8 Software
Midas MazeDungeon Software
Middle Kingdom / BreakoutDragon Data
Mind Games CompendiumOasis Software
MindbendersAnik Microsystems
Mined-Out1983Quicksilva
Mini Games (Layers/Pontoon/Guess IT/Math Test)Bamby Software
Miser'S DreamMicrovision
Missile Command & Graphics DemonstrationDjl Software
Missile DefenderTiger Software
Mission 1 - Project VolcanoR&B Software
Mission Attack1984Blaby Computer Games
Mission MoonbasePhoenix Software
Mission Xk11984J. Morrison (Micros)
Mission-EmpireHornet Software
Module Man Microdeal
Monster Mine1982Gem Software
MonstersSoftek
Monsters & MagicDragon Data
Moon CrestaIncentive Software
Moon HopperDragon Data/Microdeal/Computerware
MoonhopperDragon Data
Morbid Mansion1984Blaby Computer Games
Morocco Grand Prix Microdeal
Movie Producer1983Silly Software
Mr Dig Microdeal
Mr EaterProgrammers Guild
Mublingly / Cecil Plays 21 / Roulette / Craps / TelepahyPreston (R & AJ)
Mudpies Microdeal
Mutant War1984Blaby Computer Games
Mystery Fun HouseAdventure International
Nerble ForceDragon Data/Microdeal/Computerware
Night FlightSalamander Software
Nightmare ParkItem Limited
Ninja WarriorProgrammers Guild
Noah'S ArkItem Limited
North Sea ActionOrange Software
North Sea Oil1984Shards Software
Number ChaserDragon Data
Number GulperDragon Data
Number PuzzlerDragon Data
Oil BaronWhitsoft
Oil RecoveryPremier Microsystems
OlympiaBlaby Computer Games
Operation Safras (Pettigrew II)1984Shards Software
OrbImpact Software
OssiePeaksoft
Othello (Oasis)Oasis Software
Othello (Sofrware for All)Software For All
Othello (Twig)Twig Systems Software
PacdroidsProgrammers Guild
Pairs (Premier)Premier Microsystems
Pairs (Software for All)Software For All
Pane DamageAnik Microsystems
Patti-Pak1983Eurosoft
Pedro1984Imagine
Pendragon Space TraderAbacus
Pengon Microdeal
Pepper'S Games PackWintersoft Software
Perilous PitBlaby Computer Games
Perseus & AndromedaChannel 8 Software
Pettigrew's Diary1983Shards Software
Phantom Slayer1983 Microdeal
Pharohs Curse1984Apex Trading
Phasor PowerAnik Microsystems
Photo-FinishPeaksoft
Picnic AdventureKayde Software
Picture PuzzleLyversoft
Pimania1982Automata
Pinball (Apex Trading)Apex Trading
Pinball (Microdeal)1983 Microdeal
PirateAbrasco Ltd
Pirate AdventureAdventure International
Pirates AhoyCompusense
Pit Fiend1984Microdeal/Pocket Money Software
Planet ConquestBlaby Computer Games
Planet Invasion Microdeal
Pogo-JoJ. Morrison (Micros)
PokerCompusense
Pontoon (Computerware)Computerware
Poseidon AdventureDragon Data
Pratfall PearlyScorpio Software
Program Pack 1 Microdeal
Program Pack 2 Microdeal
Program Pack 3 Microdeal
Program Pack 41983 Microdeal
Program Pack 51983 Microdeal
Protector (Algray)Algray
Protector (Programmers Guild)Programmers Guild
Pub CrawlB & H Software
Puzzler1983Shards Software
Pyradventure1987Dragonfire Services
Pyramid Of DoomAdventure International
QiksSpectral Associates
QMON1986Microvision
QuazimodoCable Software
Quest (Dragon Data)Dragon Data
Quest (Impact Software)Impact Software
Questprobe - SpidermanAdventure International
Questprobe 1 - The HulkAdventure International
Quickshot I1984 Microdeal
Quickshot II (SVI-102)1984 Microdeal
Quinky in the Caves of DoomPSE Computers
Quiz Pack (Crossword / Wordwise)1983Shards Software
Racer Ball Microdeal
Rail Runner (Dragon Data)1982Dragon Data
Rail Runner (Microdeal)1985 Microdeal
Rainbow Writer Microdeal
Rally Adventure1988Pulser Software
Red AlertWizard Software
Red MeaniesSalamander Software
Renju - Radio HamPSE Computers
Return of the RingWintersoft Software
Return To Pirates IslandAdventure International
Reversi (Trojan)Trojan Products
River Of FireJ. Morrison (Micros)
Robin HoodPocket Money Software
Robin Hood (Potent Adventures)Portent Adventures
Rola-BallCompusense
Rola-Ball 2Starship Software
Roman EmpireLothlorien
Romik CubeRomik Software
Rommel 3D Microdeal
Rommel's RevengeDesign Design
Ruby RobbaBlaby Computer Games
Ruby RunaboutScorpio Software
SamsimDragon Data
Samurai WarriorLothlorien
SASPeaksoft
Savage Island Part 1Adventure International
Savage Island Part 2Adventure International
Scanner 13Bamby Software
Scarfman Microdeal
School MazeDragon Data
Screaming Abdabs1985A & F Software
ScribePremier Microsystems
Sea QuestDragon Data
Secret MissionAdventure International
SetterDragsoft
Sewer RatPSE Computers
Sewer Rats / RaidersBlaby Computer Games
Shaft1983Dragon Data
Shaolin MasterQuickbeam Software
Shaolin Master PlusQuickbeam Software
Shape UpDragon Data
ShaperShards Software
Shark TreasureDragon Data/Microdeal/Computerware
ShenanigansDragon Data
SherlockOrange Software
Shocktrooper Microdeal
Show JumpComputerware
Shrunken Scientist1988Orange Software
Shuttle ZapEurohard
ShuttlezapDragon Data
SimonApex Trading
Simon SaysTouchmaster
Simon ShapesTouchmaster
Simon SquaresTouchmaster
Simply SimonTouchmaster
Sir Leapin' LancelotAnik Microsystems
Sir Randolf of the MoorsGriffin Software
Sirius IvWizard Software
Six-Aside-SoccerQuickbeam Software
Sketch-A-PuzzleDiand Software
Skid Row Microdeal
SkierCRL
Skramble Microdeal
Skyjoust1983J. Morrison (Micros)
SlideMicrodeal/Pocket Money Software
Slow But SureDragsoft
SmashWizard Software
SnakebiteDiand Software
Snow QueenCambrian Computersolve
Snow Queen 7+Shards Software
Sorcerer Of Claymorgue CastleAdventure International
Space CastleWizard Software
Space Fighter Microdeal
Space MissionGem Software
Space Monopoly Microdeal
Space RaceCompusense
Space Raiders Microdeal
Space Shuttle Microdeal
Space Trek (Dragon Data)Dragon Data
Space Trek (Trojan)Trojan Products
Space Trek 1Dragonfire Services
Space Trek 2Dragonfire Services
Space Trek 3Dragonfire Services
Space War Microdeal
Space Wrek Microdeal
Speed Racer Microdeal
Spellbound: BesiegedSulis Software
Spider1983Premier Microsystems
SploshAbacus
Sporting DecathlonParamount
Sprite Designer1983Orange Software
Spy Against SpyPulser Software
St George and the DragonsCRL
Stalag / EnoDragon Data
Star CargoScorpio Software
Star DefenceBlaby Computer Games
Star Spores Microdeal
Star Swoop1984Blaby Computer Games
Star TrekSalamander Software
Star Trek / ReversiPreston (R & AJ)
Starfighter (Dragon Data)Dragon Data
Starfighter (Micros)J. Morrison (Micros)
StargateAbacus
StarjammerSalamander Software
Starke IslandOrange Software
Starman Jones1984Blaby Computer Games
Starship ChameleonDragon Data/Microdeal/Computerware
Starship DestinyPulser Software
Starting FractionsWizard Software
Startrek (Impact Software)Impact Software
Startrek (PSS)PSS
StarwordWizard Software
Stockmarket (Asp Software)Asp Software
Stockmarket (Bamby Software)Bamby Software
Stone Raider Ii Microdeal
Storm1982 Microdeal
Storm ArrowsDragon Data
Strange OdysseyAdventure International
Strategic Command (Romik)Romik Software
Strategic Command (Touchmaster)Touchmaster
StrategyWizard Software
Submarine CommandProgram Direct
Submarine CommanderB & H Software
Sultan's MazeGem Software
Sunken CitySlik Software
Sunken GhostDragonfire Services
Supa NovaOrange Software
Super Fruit MachinePremier Microsystems
Super Skill Hangman1983Salamander Software
Super Spy (Amplasoft)Ampalsoft
Super Spy (Richard Shepherd Software)1983Richard Shepherd Software
SuperbowlCable Software
SuperkidQuickbeam Software
SuperNova1988Orange Software
SurpriseBamby Software
SwashbucklerA & F Software
Syzygy Microdeal
Table Adventures1984Dragon Data
Take The StrainTwig Systems Software
Talking Android Attack Microdeal
Tangle Wood Microdeal
Tank BattlePremier Microsystems
Taskship (Micros)J. Morrison (Micros)
Taskship (Programmers Guild)Programmers Guild
Tea Time1984Pocket Money Software
Tee OffDragon Data
Temple Of DoomBlaby Computer Games
Temple Of ZorenDungeon Software
Ten Little IndiansChannel 8 Software
Terror CastleQuickbeam Software
Terror From The DeepKayde Software
TetrisPSE Computers
Textstar1982PSS
The AnimatorScreenplay
The BellsBlaby Computer Games
The Bomb!Dragonfire Services
The Chocolate Factory / Fabrica de Chicles1983Eurohard
The CountAdventure International
The Cricklewood Incident1983Salamander Software
The Crystal ChaliceDungeon Software
The Curse of Camarc1988Orange Software
The Dark Pit Microdeal
The Dragon Composer Microdeal
The Emperor Must DiePhoenix Software
The Fall Of RomeAsp Software
The Filing SystemActive Software
The Games CassetteDatacom Publications
The Golden Baton1984Channel 8 Software
The Great Fish Van ScandalOrange Software
The Immortal StrainDragonfire Services
The Ket Trilogy1985Incentive Software
The King1982 Microdeal
The Lost Tower Of TintagelPortent Adventures
The ManagerDungeon Software
The MeddlerNemesis
The Mystery Of The Java Star1984Shards Software
The PuzzlerComputerware
The QuizTwig Systems Software
The Ring Of DarknessWintersoft Software
The Roundsby IncidentKayde Software
The Seven HillsAnik Microsystems
The Shrunken ScientistQuickbeam Software
The SwampKayde Software
The Sword and the Sorcerer1984Blaby Computer Games
The Tiger Grand Prix1983Tiger Software
The Time MachineChannel 8 Software
The TowerTwig Systems Software
The Trial Of Arnold BlackwoodNemesis
The Valley (Asp Software)Asp Software
The Valley (Kayde)1983Kayde Software
The Vortex Factor Microdeal
The Water Of LifeAbacus
The White BarrowsAsp Software
The White Cliffs Of DoverSalamander Software
The Wizard Of AkyrzChannel 8 Software
The Wizards LairBlaby Computer Games
Thirteenth TaskOrange Software
Tick Tock1984Gravesend Home Computers
Tim Love's CricketPeaksoft
Time Bandit1984 Microdeal
Time JumperLothlorien
Time LordIncentive Software
Time Machine SearchDragonfire Services
Time Port 1Wizard Software
Time Port 2 - The Staff Of LifeWizard Software
Time TravellerSulis Software
Tiny Touch'N'GoDorling Kindersley Software
Tombstone & CodcreekPSE Computers
Tombstone And Cod CreekQuickbeam Software
TopplerMicrodeal/Pocket Money Software
Total EclipsePSE Computers
TouchdownWizard Software
Touch'N'Go1984Goldstar
Touchstone1984 Microdeal
Trace ChaseWizard Software
Trace Race1983Cable Software
Transylvanian Tower1983Richard Shepherd Software
Treasure TombeDungeon Software
Treasures of Barsoom Microdeal
Trekboer Microdeal
TripletWizard Software
Trivial CrosswordsQuickbeam Software
TrunBlaby Computer Games
Tubeway ArmyDesign Design
TurnoverOrange Software
Tyrant Of AthensLothlorien
UGH!Softek
Ultimate Adventure 41982 Microdeal
UltrapedeSoftek
Underbeings Of CrothDragonfire Services
Up PeriscopeBeyond
Usurper of Rune1985Wintersoft Software
UtopiaDragonfire Services
UXB1984Virgin
Variety PackQed Systems
Vegas Jackpot 1984Mastertronic
Video Challenge 1Qed Systems
Video Challenge 2Qed Systems
VikingDragon Data
Volcanic DungeonCarnell Software
Voodoo CastleAdventure International
Vulcan Noughts And Crosses1982Salamander Software
VulturesJ. Morrison (Micros)
War Hammer of Gilibran1988Orange Software
Warlord1982Lothlorien
WaxworksChannel 8 Software
Weetabix Versus The TitchiesRomik Software
Weirds Of KeshQuickbeam Software
Whirlybird RunDragon Data
White CrystalRomik Software
Who Said ThatItem Limited
Wild West DestinyPulser Software
Williamsburg Adventure 31982 Microdeal
Willys RevengeAbacus
Wings of War1984Salamander Software
WizardWizard Software
Wizard PinballWizard Software
Wizard War1982Salamander Software
Wizards LairPreston (R & AJ)
Wizards Quest Microdeal
Word Search1986Computerware
Worlds Of Flight Microdeal
WormtubeHornet Software
YahtceeAnik Microsystems
Yakzee1983Automata
Zak'ssonCable Software
Zorakk the ConquerorIcon Software
ZotokaPreston (R & AJ)

Differences from the TRS-80 Color Computer

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.

The systems are sufficiently similar that a significant fraction of the compiled software produced for one machine will run on the other. Software running via the built-in Basic interpreters also has a high level of compatibility, but only after they are re-tokenized, which can be achieved fairly easily by transferring via cassette tape with appropriate options.

It is possible to permanently convert a Color Computer into a Dragon by swapping the original Color Computer ROM and rewiring the keyboard cable. [9]

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

References

  1. 1 2 3 Sangani, Kris (2009). "Gadgets That Design Forgot". Engineering & Technology. 4 (16). IET: 31. doi:10.1049/et.2009.1604. ISSN   1750-9637. Archived from the original on 5 February 2010.
  2. ↑ "Dragon 32 - 64K Upgrade". worldofdragon. Retrieved 16 November 2025.
  3. ↑ Bancroft, Ralph (16 June 1984). "Dragon fire flickers". Personal Computer News. p. 4. Retrieved 7 February 2026.
  4. ↑ "Tano dragon". cadigital.com. Archived from the original on 20 February 2017. Retrieved 12 January 2022.
  5. ↑ Williams, Gregg (January 1983). "Microcomputer, British Style / The Fifth Personal Computer World Show". BYTE. p. 40. Retrieved 19 October 2013.
  6. 1 2 "The Computer that Roared" by Fernleigh Edmonson. "Microcomputing" magazine 1983 May.
  7. ↑ Brooks, Phil. "Dragon User May 1985, 'Write On!'" (PDF). World of Dragon. Dragon User. p. 10. Archived (PDF) from the original on 11 March 2016.
  8. ↑ "Dragon 32 Games Database". dragon32.co.uk. Dragon 32 / Dragon 64 Archive. Retrieved 15 January 2026.
  9. ↑ "Coco to Dragon Conversion". Archived from the original on 26 November 2009. Retrieved 5 August 2008.
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