SEGA system 24

SYSTEM24 (system 24) is the arcade game board which SEGA (interactive SEGA in the back) released in 1988. It is a characteristic that I use a 24.830kHz monitor becoming the high definition than conventional 15.750kHz to horizontal scanning frequency as standard equipment, and was high definition than the board of the game that generally circulated in those days for business use.

Summary

It was a characteristic to be able to display thing and (I use the security tip together), a lot of Sprite characters by the frame buffer method who performed soft supply in FD of 3.5 inches with the floppy disk system of the thing that was for exclusive use of the above-mentioned high-resolution monitor, and it was a topic. In addition, for the same period, "the aerocity" (upright type) corresponding to the 24.830kHz monitor and the housing of "Aerosmith table 26" (table housing type) come up, too.

However, there was the evil that a copy was easy because it was agony of the maintenance including the frequent occurrence of the lead error by use environment and the aged deterioration that it could not be said that the simple floppy disk system might determine the game exchange about the use of the floppy called the arcade housing for business use in macroscale cheaper than ROM for those days, a disk medium. After such circumstances and announcement of the ROM is large-capacity, and the price reduction has advanced, too, and all the titles of the latter period will be supplied only with an ROM kit.

Specifications

• CPU： Two Motorola 68000 10MHz
• Screen resolution: 486*384 (24.830kHz) color development: Under a 4352/32768 color
• Memory: RAM 1360Kbyte ROM 256Kbyte
• A sound source: The FM sound source 8 sound YM2151 (OPM) DAC1 sound stereo output
• The number of the scroll characters: 4096 characters (8dot X 8dot)
• The number of Sprite characters: 2000 characters (16dot X 16dot)
• Sprite： A frame buffer method. I display up to 2,048 in a screen (there is a function to enlarge and reduce)
• A screen: BG2 side, two windows
• Soft supply: 1.44MB floppy disk (+ security tip), ROM kit

Main title

• Hot rod (1988)
• Scramble spirits
• Gain ground
• Crack-down (1989)
• Jumbo Ozaki supermasters
• Bonanza Brothers (1990)
• Rough racer
• I forgot quiz homework (1991)
• You stand in the quiz corridor, and do it
• Dynamic country club
• 所 さんのまーまーじゃん (1992)
• Quiz ghost hunter (1994)
• 所 さんのまーまーじゃん 2

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