Sanyo MBC-550 series
| Sanyo MBC-555 on display at the Living Computer Museum | |
| Developer | Sanyo Electric | 
|---|---|
| Type | Personal computer | 
| Release date | March 1984 | 
| Lifespan | 1984–1988 | 
| Introductory price | <$1000 | 
| Discontinued | 1988 | 
| Units sold | 10,000+ | 
| Operating system | MS-DOS 2.11 (optional: CP/M 86, Concurrent CP/M-86) | 
| CPU | Intel 8088 at 3.58 MHz | 
| Memory | 128 KB | 
| Removable storage | floppy disks | 
| Display | RGB Color Monitor CRT-70; Monochrome Monitor CRT-36; 40×25 or 80×25 text modes; 144×200, 576×200 or 640×200 graphic modes with 8 colors | 
| Graphics | HD46505 CRTC, RGB graphics adapter | 
| Sound | Buzzer (single buzztone sound, fixed duration) | 
| Input | Keyboard | 
| Controller input | Apple compatible Joystick | 
| Connectivity | 1 parallel port | 
| Power | 120 V AC (North American model) | 
| Dimensions | 380 × 112 × 360 mm | 
| Predecessor | MBC-1000 | 
The MBC-550 series, also known as the MBC-550/555, is a series of personal computers sold by Sanyo. It was unveiled at the COMDEX/Spring '83 in April 1983 and first released to market in March 1984.: 12 All models in the MBC-550 series featured pizza-box-style cases and Intel 8088 microprocessors and run versions of MS-DOS. On its release in 1984, the MBC-550 was the least expensive IBM PC compatible released to date, at a price of US$995 (equivalent to $3,010 in 2024). The MBC-550 series followed Sanyo's MBC-1000 line of CP/M computers.