| Term | Definition |
|---|---|
| SG | Sega Game |
| SC | Sega Computer |
| SJ | Sega Joystick |
| SS | Sega Switch |
| MK-30xx | Master System (international) |
| AI | AI Computer |
| HAA | Mega Drive / Mega CD (Japan) |
| MK-16xx | Genesis / Mega Drive (international) |
| MK-14xx | Genesis (sold by Majesco) |
| HGG | Game Gear (Japan) |
| MK-21xx | Game Gear (international) |
| HTR | Teradrive |
| MK-41xx | Sega CD & Genesis CDX |
| HMA | 32X (Japan) |
| MK-84xxx | 32X (international) |
| HMJ | Mega Jet |
| MK-61xx | Genesis Nomad |
| HPC | Pico & Advanced Pico Beena (Japan) |
| MK-49xxx | Pico (international) |
| HST | Saturn (Japan) |
| MK-80xxx | Saturn (international) |
| HKT | Dreamcast |
Part Prefixes
These prefixes were used internally by Sega for individual components, and consist of a three digit code followed by a hyphen, after which follows a specific part. Using 837-6629 as an example, "837" refers to an assembled PCB while "6629" refers to the particular part. Sega used these prefixes for both arcade and consumer parts.
| Term | Definition |
|---|---|
| 000 | Screw |
| 012 | Screw |
| 048 | Eyelet / Rivet |
| 079 | Eyelet / Rivet |
| 125 | Spring |
| 150 | Electrolytic Capacitor |
| 151 | Ceramic Capacitor |
| 153 | Tantalum Capacitor |
| 171 | PCB (unpopulated) |
| 180 | Choke / Line Filter |
| 209 | Edge Connector |
| 210 | Circular Connector |
| 212 | Connector |
| 213 | IC Socket |
| 230 | Crystal Oscillator |
| 250 | Metal Shielding / Bracket |
| 253 | Plastic Part |
| 270 | Line Filter |
| 271 | Inductor |
| 313 | Amplifier IC |
| 314 | Logic IC |
| 315 | Custom IC / Memory |
| 390 | LED |
| 400 | Power Supply |
| 401 | Battery |
| 476 | Resistor |
| 477 | Resistor Array |
| 479 | Jumper |
| 481 | Diode |
| 482 | Transistor |
| 509 | Tactile Switch |
| 510 | Switch |
| 600 | Cable / Wire Harness |
| 601 | Rubber Foot / Gasket |
| 610 | Accessory |
| 670 | Literature (i.e. registration and warranty forms) |
| 671 | Packaging (boxes and labels) |
| 672 | Instruction Manual |
| 837 | Assembled PCB |
| 839 | Sub-assembly |
| EPR | EPROM |
| MPR | Mask ROM |
| SGM | Plastic Bag |