SG-1000

The SG-1000 is the first video game console released by the Sega Corporation. The system was released in only Japan, New Zealand, and several west-European countries such as France, Italy, and Spain. Several sequel varients of the console were developed as well, the final version being Sega's Master System.
== Technical specifications ==
* CPU: NEC 780C (clone of Zilog Z80)
** 3.579545 MHz for NTSC, 3.546893 MHz for PAL
* Main RAM: 16 kbit (2 kB)
* Video RAM: 128 kbit (16 kB)
* Video processor: Texas Instruments TMS9928A
** 256×192 resolution
** 32 sprites
** 16 colors
* Sound: Texas Instruments SN76489
** 4-channel mono sound
** 3 sound generators, 4 octaves each, 1 white noise generator
* Ports:
** 1 cartridge
** 1 DIN composite video/audio (SC-3000 only)
** 1 RF out
** 1-2 joystick (1 port for SG-1000, 2 for SG-1000 II and SC-3000)
** 1 expansion parallel bus (used for SK-1100 keyboard and FM Sound Unit; (SK-1100)SG-1000 and SG-1000 II and Sega MarkIII / (FM Sound Unit)Sega MarkIII only )
** 1 cassette (SC-3000 and SK-1100 keyboard)
** 1 printer (SC-3000 and SK-1100 keyboard)
== Redesigns and remodels ==
=== SG-1000 II ===
The SG-1000 was released in the summer of 1984 as Sega's third console, only one year after the initial release of the SG-1000. Though cartridge based games were released in Europe and Oceania, the SG-1000's card based software was exclusive to Japan.
=== SC-3000 ===
The SC-3000 was the computer equivalent of the SG-1000. The system had backward compatibility with the SG-1000 II and its games as well as featured use of its applications. Using BASIC, players were able to create their own programs and games on the machine.
=== SC-3000H ===
The SC-3000H was essentially an upgraded version of the SC-3000. The system sported more RAM as well as an upgraded keyboard. An upgrade to the system, the SF-7000, added several new features to SC-3000H including: 64KB of RAM and 8KB ROM, a 3-inch floppy disk drive, a Centronics parallel port, and an RS232 serial port.
=== Sega Mark III ===
The Sega Mark III was an advanced version of the SC-3000 featuring new hardware and output. The device never saw the markets, though; instead, Sega released the Sega Mark III in an enhanced and redesigned version under the name Sega Master System.
Category:Consoles released by Sega