MC-10

Released in 1983, the Tandy MC-10 (Micro Color Computer) was Tandy’s low-cost alternative to the Color Computer line. Compact, affordable, and based on the Motorola MC6803 CPU, it shipped with 4KB RAM, Color BASIC, and RF video output to a TV. Intended to compete with the likes of the Sinclair ZX81 and Commodore VIC-20, it offered BASIC programming and simple games but lacked compatibility with the CoCo software library. Despite its limited specs and brief shelf life, the MC-10 has gained a cult following among retro collectors and minimalism enthusiasts.

Notable Features

• Very low-cost BASIC computer — a direct competitor to the ZX81 and VIC-20
• Used the same MC6847 video display generator as the CoCo
• Early Tandy system using external RAM pack architecture
• Programmed with a slightly different flavor of Color BASIC than CoCo models
• Aimed at beginners and educational use, but lacked commercial software support

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Historical Significance

• Tandy’s attempt to grab the entry-level 8-bit market
• Sold through Radio Shack stores and catalogs, often bundled with tape software
• Overshadowed by the VIC-20 and later ZX Spectrum
• Gained a following for its hackability and minimalist design
• Now a niche favorite among collectors of “underdog” machines

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Collector's Notes

• Rarity: Moderate – not hard to find, but original boxes and RAM packs are less common
• Desirability: Cult following due to its quirky appeal and size
• Common Issues:
  • Power brick failure
  • Loose cartridge port
  • Chiclet key bounce
• Display Tips: Best shown running BASIC demos or semigraphics color animations

Specifications

Technical Information
Name	MC-10
Manufacturer	Tandy
Launched	Friday, July 1, 1983
Discontinued	1984
Launch Price	$119.95 USD
Country	United States
CPU	Motorola MC6803 @ 0.89 MHz
Units Sold	~50,000–100,000
Power	External 8.5V AC power brick with internal regulation
Operating System	Microsoft Color BASIC (not CoCo-compatible)
Expansion	Edge connector for RAM pack, printer, and modem peripherals
Storage	Cassette interface (1500 baud)
Keyboard	48-key chiclet keyboard
Sound	1-bit beeper via bit-banged I/O
Graphics	32×16 text, up to 64×48 semigraphics, limited color
Display	RF output; text and semigraphics via MC6847 VDG
ROM	8KB (Microsoft Color BASIC)
RAM	4KB onboard (expandable to 20KB via external RAM pack)