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M > MGT (MILES GORDON TECHNOLOGY) > Sam Coupé   


MGT (Miles Gordon Technology)
Sam Coupé

In the last quarter of 1989 M.G.T. launched the Sam Coupé. M.G.T. was already known in the ZX Spectrum world for a range of hardware that they sold. The Sam was their pride and joy, and unfortunately to be their downfall.

This was a time when the 16-bit machines, the Atari ST and the Amiga, were really being to take off. Sales in computers such as the Spectrum was in rapid decline. The Sam was aimed to fill this gap, a powerful 8-bit machine with specs that in cases out performed those of the 16-bit machines, at an 8-bit price. It was hoped that current 8-bit owners, particularly Spectrum owners, would jump on the nicely priced Sam rather than a more expensive 16-bit machine.



We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.

 

Still a lot of development going for the SAM Coupe, and I am also please to announce my next hardware project - ''Pandemonium''.

It started with three tweets on my twitter account on 1st January 2019...

(1of3) 2019. It''s now 26 years since I bought my first SAM Coupe and 24 years since I started Quazar and all my frantic developing for the system. It''s a shame the SAM didn''t thrive, but I often imagine what I could do if I ever got my hands on a handful of SAM''s ASIC chips.

(2of3) The ASIC is the unique custom chip at the heart of the SAM Coupe. What could I do if I had some? A new SAM drastically enhanced with my extra peripherals and a faster Z80, plus an eZ80 co-processor? That would surely be some advanced micro! It would be utter pandemonium!

(3of3) I just need those SAM Coupe ASIC chips... Oh wait... I have over 200 ?? Okay... Hmm... Pandemonium... Thats a funky codename for a new SAM! So, I happily announce ''Pandemonium''! I''ve a long way to go but it''s underway! Stay tuned...

While initially sounding a bit cryptic, I did just announce my next hardware project that will follow on from Symbiote!

Codenamed ''Pandemonium'' for the time being, this will be a new SAM!

Yes, you did read that right, a new SAM!

What makes this possible? Well, as covered in my new year tweets, I''ve got my hands on several hundred of the ASIC chips - that''s the customised VLSI logic array designed by Bruce Gordon, that provides all the main system logic of the SAM Coupe - graphics generation, memory paging, interrupts, MIDI, keyboard reading etc, etc.

Why the name ''Pandemonium''? It''s expanding on ''Mayhem'' the name I used for my prototype SAM accelerator. While interest was very low over a decade ago it never fully progressed into a released unit, however on the basis that I''ll be able to make a limited quantity of spanking new SAMs it makes sense to add in whatever I can incorporate, so that does include making it faster if possible. I''ve already updated my accelerator design, so couple that with most of my other hardware peripherals that I''ve designed and released over the years, such as the Trinity Ethernet Interface and the forthcoming Symbiote (an eZ80 based co-processor and audio interface I''m also working on) it''ll be a rather fantastic computer!

          
Wednesday 30th January 2019
Quazar (Scotland)
www.samcoupe.com

http://www.youtube.com/watch?v$zsjTpFR0oYQ

please help
trying to convert 8bit video for sam coupe
this is still not mode 3 interlaced with hmpr bit 5$6 CLUT alterations per scan line HELP we only need a DMA...
masterdos/basic atom lite support HELP

          
Sunday 3rd February 2013
Roger Jowett (ulster)
video

http://www.youtube.com/watch?v$Qc4Xoz75yHI

apparently i cut and pasted the same link twice oh dear

          
Saturday 26th May 2012
roger jowett (ulster)
samkoop20th

 

NAME  Sam Coupé
MANUFACTURER  MGT (Miles Gordon Technology)
TYPE  Home Computer
ORIGIN  United Kingdom
YEAR  December 1989
END OF PRODUCTION  1992
BUILT IN LANGUAGE  SamBasic
KEYBOARD  Full-stroke keyboard, 72 keys, Reset button
CPU  Zilog Z80B (fully compatible with i8080 and Z80)
SPEED  6MHz with screen off, 4.5 MHz with screen on
can be slowed down to emulate ZX Spectrum
CO-PROCESSOR  Motorola MC 1377P Video Chip, Philips SAA1099 soundchip, ASIC handling graphics
RAM  256 kb or 512 kb onboard (depending models), and up to 4Mb with external addons (4.5 Mb total)
ROM  32 kb (BASIC, BIOS & disk bootstrap)
TEXT MODES  32 x 24, 85 x 24
GRAPHIC MODES  256 x 192, 512 x 192
COLORS  128 colors
SOUND  Philips SAA1099 soundchip, 6 channels stereo FM synthesis, 8 octaves, 2 noise generators, 2 envelope generators, DAC digital output , sample rate 15.6 kHz. Built-in MIDI interface (in, out, through)
SIZE / WEIGHT  2.26 Kg
I/O PORTS  RF video output (UHF, channel 36), RGB scart video output, serial / network socket, joystick connector (Atari standard), parallel interface, audio input, audio output
BUILT IN MEDIA  one or two 3.5'' ultraslim Citizen Double Density Drives (800 kb)
First models had no disk-drives
OS  SamDOS, CP/M available
POWER SUPPLY  External PSU (5v)




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