Sega Master System

Console facts

Type Video games
Year 1986
End year 1990
CPU Zilog Z80
Speed 3.54 MHz
ROM 8 KB to 256 KB depending on built-in software
Media cartridge
Controllers 8-way d-pad, 2 buttons
Graphic modes 256x192, 256x224, 256x240 (PAL only), 16 sprites (8 x 8 pixels)
Colors 64 palette, 32 on screen (16 sprite, 16 background)
Sound Texas Instruments SN76489 DCSG, 4 channel mono (3 tone channels, 1 white noise channel)
Sega Master System


The Sega Master System (SMS) was originally released as the Sega Mark III in Japan. It was released after Nintendo's NES (Nintendo Entertainment System) and was never able to catch up to its level of success. The hardware was superior to that of the NES but the number of quality games on Nintendo's console far out numbered those on the Master System.

This console was followed by a smaller but mostly similar version, the Sega Master System II.

Sega Master System images