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Sega Master System

The Sega Master System was an 8-bit cartridge-based gaming console that was released in Japan in 1986 and the rest of the world the following year. It was designed to be a direct competitor to the NES/Famicom; however, although the Master System was more technically advanced than the NES, it did not attain the same level of popularity among consumers in the United States. This was partly due to the fact that Nintendo had cornered 90% of the North American market at the time, and Sega decided not to push the console too aggressively in the NES-dominated market. By 1992, the Master System's sales were virtually nonexistent in North America and in Japan, and the console was discontinued.

The console was far more popular in Europe and Australasia where Nintendo had not gained a firm foothold, and it remained in production until 1996; discontinued only to make way for the new Sega Saturn console. The Sega Master System was particularly popular in Brazil, where it is still being produced to this day. Overall, the console has sold over 13 million units since its release date.

Games

Some of the more notable games for the Sega Master System include:

  • Action Fighter
  • After Burner
  • Alex Kidd in Miracle World
  • Alex Kidd in Shinobi World
  • Alien Storm
  • Alien Syndrome
  • Asterix
  • Astro Warrior
  • California Games
  • Castle of Illusion Starring Mickey Mouse
  • Choplifter
  • Double Dragon
  • Ecco the Dolphin
  • Ecco: The Tides of Time
  • Fantasy Zone
  • Ghouls 'n Ghosts
  • Ghostbusters
  • Golden Axe
  • Golden Axe Warrior
  • Golvellius: Valley of Doom
  • Hang-On
  • The Jungle Book
  • Kenseiden
  • Michael Jackson's Moonwalker
  • Montezuma's Revenge
  • Ninja Gaiden
  • Out Run
  • Phantasy Star
  • Psycho Fox
  • Quartet
  • Rampage
  • R-Type
  • Safari Hunt
  • Shinobi
  • Snail Maze
  • Sonic the Hedgehog
  • Sonic the Hedgehog 2
  • Sonic the Hedgehog Chaos
  • Space Harrier
  • Ultima IV: Quest of the Avatar
  • Wonder Boy in Monster Land
  • Wonder Boy in Monster World
  • Wonder Boy III: The Dragon's Trap
  • World Cup Italia '90
  • Ys: The Vanished Omens
  • Zillion

Technical Details

One of the unique features of the Sega Master System was its dual media inputs: one card slot and one cartridge slot. The card slot accepted game cards about the size of a credit card, and was also used to plug in the 3D glasses peripheral, which could be used with six specially designed cartridge games.

In 1990, the Sega Master System II was released; a smaller, sleeker console that lacked the reset button and card slot of the original. The new system included a built-in game (Alex Kidd in Miracle World, or later Sonic the Hedgehog), which was playable without any cartridges. Although the unit was marketed the heavily, it sold poorly.

The latest version (produced in Brazil) is the Master System III Collection, which comes in three versions: one with 74 games built-in, other with 105 games built-in and another with 112 games built-in on an internal ROM.

Specifications

Processor

  • 8-bit Zilog Z80A
    • 3.54 MHz for PAL/SECAM
    • 3.57 MHz for NTSC

RAM

  • Main: 64 kbit (8 kB)
  • Video: 128 kbit (16 kB)

ROM

  • 64 kbit (8 kB) to 2048 kbit (256 kB), depending on built-in game

Video

  • VDP (Video Display Processor) derived from Texas Instruments TMS9918
    • Up to 32 simultaneous colours available (16 for sprites, 16 for background) from a palette of 64 (can also show 64 simultaneous colours using programming tricks)
    • Screen resolutions 256x192 and 256x224. PAL/SECAM also supports 256x240
    • 8x8 pixel characters, max 488 (due to VRAM space limitation)
    • 8x8 or 8x16 pixel sprites, max 64
    • Horizontal, diagonal, vertical and partial screen scrolling

Sound

  • PSG: Texas Instruments SN76489
    • 4 channel mono sound
    • 3 sound generators, 4 octaves each, 1 white noise generator
  • FM: Yamaha YM2413
    • 9 channel mono FM sound (built into Japanese Master System (Sega Mark III) and supported by certain games only)

Other Features

  • Game Card slot (not available in the Master System II)
  • Game Cartridge slot (Japanese and South Korean consoles use 44-pin cartridges, whilst all other consoles use 50-pin cartridges with a different shape. The difference in cartridge style was a form of regional lockout)
  • Expansion slot