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S > SEGA > SG-1000 Mark II     


Sega
SG-1000 Mark II

Very similar to the SG-1000, the SG-1000 Mark II was just a minor update consisting mainly of cosmetic changes.

The case was redesigned and the joysticks of the Mark I were replaced by joypads which could be stored in built-in holders located on either side of the console. There was also built-in port where a keyboard could be attached, effectively turning the console into a computer. However, the Mark II was still outsold by it's computer counterpart, the SC-3000.

In 1985 the Mark II was replaced by the Mark III, the first version of the Master System.

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.
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NAME  SG-1000 Mark II
MANUFACTURER  Sega
TYPE  
ORIGIN  Japan
YEAR  1984
END OF PRODUCTION  1985?
BUILT IN LANGUAGE  None
KEYBOARD  8-way d-pad, 2 buttons
CPU  NEC 780C (Zilog Z80 clone)
SPEED  3.546893 MHz (PAL)
3.579545 MHz (NTSC)
CO-PROCESSOR  Texas Instruments TMS9918 VDP
RAM  2 KB
VRAM  16 KB
GRAPHIC MODES  256x192
COLOrsc  16 on screen
SOUND  Texas Instruments SN76489 DCSG, 4 channel mono (3 tone channels, 1 white noise channel)
SIZE / WEIGHT  Unknown
I/O PORTS  Cartridge, Composite Video out, Parallel port, keyboard port, 2 Controller ports
BUILT IN MEDIA  Cartridge
OS  54?
POWER SUPPLY  9v DC
PERIPHERALS  Card Catcher (card slot add-on), keyboard
PRICE  ¥15,000 (Japan, 1984)





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