The Hotness
Games|People|Company
Terraforming Mars
Red Dead Redemption II
Red Dead Redemption
Speedball 2: Brutal Deluxe
No Greater Glory: The American Civil War
Battle of the Bulge
Camel Up
Steam: Rails To Riches
Beholder
Spirit Island
Rummy 500
The Legend of Zelda
Drakengard
HλLF-LIFE²
Katamari Damacy
Fallout (1997)
Nintendo DS Lite
Alan Wake
Skool Daze
White Knight Chronicles
California Games
Cosmic Causeway: Trailblazer II
Impossible Mission
Mega-Apocalypse
Deflektor
Gateway to Apshai
Fire Emblem: Path of Radiance
Sid Meier's Alpha Centauri
Mercenaries: Playground of Destruction
EarthBound
Stuntman: Ignition
The Matrix: Path of Neo
Commodore 64
Summer Games
Jumpman (1983)
Street Sports Basketball
Spindizzy
Zynaps
Minecraft
Amnesia: The Dark Descent
Cursed Mountain
Summer Games II
Medici
Battlefield 2: Complete Collection
Tikal
SteamBirds
Elder Sign: Omens
Imperial
CDTV
Napoleonics: Quatre Bras
Information
Primary Name
Dragon Home Computer
Alternate Names
Release Date
1982-08-00
Hardware Category
Manufacturer
Platform
 Corrections
 Clone
 Customize View
xml RSS Feed 
Facebook Twitter Delicious Google
ObjectID: 111682
Description Edit | History

The Dragon 32 and Dragon 64 are home computers that were built in the 1980s. 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. The model numbers reflect the primary difference between the two machines, which have 32 and 64 kilobytes of RAM, respectively. Aside from the amount of RAM, the 64 also has an RS-232 serial port which was not included on the 32.

A minor difference between the two Dragon models is the outer case colour; the Dragon 32 is beige and the 64 is light grey. Besides the colour and the Dragon 64's serial port (and the model name stickers, of course), the two machines look exactly the same. The Dragon 32 is upgradable to Dragon 64.

The Dragon is built around the Motorola MC6809E processor running at 0.89 MHz. This was an advanced 8-bit CPU design, having, among other things, limited 16-bit capabilities. In terms of raw computational power, the Dragon beat most of its contemporary rivals based on the older MOS Technology 6502, but this made little difference in a market where graphical capabilities and games were much more important to consumers.

It was possible to increase the speed of the computer by using POKE 65495,0 which accelerates the ROM-resident BASIC interpreter, but temporarily disables correct functioning of the cassette/printer ports. Manufacturing variances means that not all Dragons are able to function at this higher speed, and use of this POKE can cause some units to crash or run highly unstable, though with no permanent damage. POKE 65494,0 returns the speed to normal. POKE 65497,0 pushes the speed yet higher but the display is lost until a slower speed is restored.

The Dragon also 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).

A broad range of peripherals exist for the Dragon 32/64, and on top of this there are add-ons such as the Dragon's Claw which give the Dragons access to the BBC Micro's large range of accessories (a particularly important factor in the UK home market). Although neither machine has a built-in disk operating system (cassette tapes being the default data-storage mechanism in the home computer market at the time), DragonDOS was supplied as part of the disk controller interface from Dragon Data Ltd. The numerous external ports (by the standards of the time), including the standard RS-232 on the 64, also allows hobbyists to attach a diverse range of equipment.

An unusual feature was a monitor port for connection of a computer monitor, as an alternative to the TV output. This was rarely used due to the cost of dedicated monitors at that time. The port is actually a Composite Video port and can be used to connect the Dragon 32 to most modern TVs to deliver a much better picture.

The Dragon uses analogue joysticks, unlike most systems of the time which used less versatile but cheaper digital systems. Other uses for the joystick ports include light pens.

Tony Clarke and Richard Wadman laid out the specifications for the Dragon. The units had a robust motherboard in a spacious case, reminiscent of the BBC Micro, and so were more tolerant of home-modification than some of their contemporaries, which often had their components crammed into the smallest possible space.

Source: Wikipedia, "Dragon 32", available under the CC-BY-SA License.

More Information Edit | History
This page does not exist. You can edit this page to create it.
Versions
Pg. 1
Dragon Home Computer
Nick: 
Dragon 32
Rel Date: 1982-08-00
Manufacturer: Dragon Data
Region: 
View
Corrections
Link Image
Dragon Home Computer
Nick: 
Dragon 64
Rel Date: 1983-00-00
Manufacturer: Dragon Data
Region: 
View
Corrections
Link Image
Updating...
Thumbs Up
Marketplace
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No items found
{{product.numforsale}} for sale {{product.price}}
{{product.prettycondition}}
{{product.listdate|truncate:"10"}}
Updating...
Thumbs Up
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No items found
{{item.title}} {{item.timeleft}}
{{item.currentprice}}
Updating...
Thumbs Up
Images
Gallery:
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No images found
Updating...
Thumbs Up
{{data.config.moduletitle}} Relationship:
[] [Forums »] [Post »] [Search »]
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No threads found
{{thread.numrecommend}} {{thread.subject}}
Last Post {{thread.lastpostdate|truncate:"10"}} Posted {{thread.postdate|truncate:"10"}}
{{thread.user.username|truncate:"10"}} {{thread.numposts-1}}
Updating...
Thumbs Up
{{title}}
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No posts found
{{post.numpositive}} {{post.title}}
by
{{post.numcomments}}
Files
Title | Hot | Recent
[Browse »]  [Upload File »] Language:
Pg. 1 of 1
No Files Found.
Updating...
Thumbs Up
GeekLists
[Browse »] [Summary »]
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No lists found
{{list.numpositive}} {{list.title}} {{list.username|truncate:"10"}} {{list.numitems}}
{{list.lastreplydate|truncate:"10"}} {{list.postdate|truncate:"10"}}
Statistics
Video Game Hardware Rank: N/A
Num Ratings: 1
Average Rating: 7.00
Standard Deviation: 0.00
Num Views: 144
GeekBuddy Analysis: Analyze
Similarly Rated: View
Avg. Game Weight: 0.0
Fans: 0
Personal Comments: 0
Users Owning: 0
Users Wanting: 0
Users Trading: 0 [find trade matches]
Price History: View
Total Plays: 0
Plays This Month: 0
Updating...
Thumbs Up
Web Links
Category: Language:
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No Web Links Found
Link {{cat}} {{lang}}
{{weblink.postdate|truncate:"10"}}
User Information
Use this tool to rate games, save comments, and manage your collection.
Front Page | Welcome | Contact | Privacy Policy | Terms of Service | Advertise | Support BGG | Feeds RSS
Geekdo, BoardGameGeek, the Geekdo logo, and the BoardGameGeek logo are trademarks of BoardGameGeek, LLC.