Thomson  Tomson TO7
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Thomson TO7

The Thomson TO7 (also branded as the Thomson 9000) was produced by Thomson SA of France. It was released in 1982 for the price of 3750 French Franks. The computer is using the 8-bit Motorola 6809 CPU running at 1MHz and came with 22kByte of RAM and a cartridge system called MEMO7.

The capabilities were decent for the time, but nothing spectacular. The graphics were produced by a Motorola MCA1300 Gate Array, and produced 320x200 pixels in 8 colors. There was a limitation however that only 2 colors could be used for each row of 8 pixels, causing the infamous "color spill" for graphics. Computers such as the MSX1 and the Spectrum also suffered from this.

The TO reange of computers belonged to the first generation of home computers. The TO stands for tele-ordinateur. The computer could be connected to a regular television set via a SCART plug. The TO-7 was soon to be upgraded to the TO-7/70 which was chosen to be part of the French government education plan named "Computers for All" to support the development of programming skills in the education system.

Motorola 6809 CPU

The Motorola 6809 is an 8-bit microprocessor with some 16-bit features. It was designed by Motorola's Terry Ritter and Joel Boney and introduced in 1978. Although source compatible with the earlier Motorola 6800, the 6809 offered significant improvements over it and 8-bit contemporaries like the MOS Technology 6502, including a hardware multiplication instruction, 16-bit arithmetic, system and user stack registers allowing re-entrant code, improved interrupts, position-independent code and an orthogonal instruction set architecture with a comprehensive set of addressing modes.

Technical Details
Released 1982 Brand Thomson SA Type Thomson TO/MO Series Name Tomson TO7 CPU Class 6809 CPU Motorola 6809 @ 1MHz Memory RAM: 22kB
RAM max: 14kB Shared
ROM: 4kB
VRAM: 38kB
Sound Chip none Sound 1 bit square wave Display Chip Motorola MCA1300 GA Display 320x200 8 color (2 colors per 8p) Best Text 40x25 Best Color 8 colors Best Graphics 320x200 Sprites none System OS Microsoft BASIC Storage Cassette Tape Original Price 3750FF
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Thomson TO/MO Series
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Tomson  TO7 (1982)
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Wikipedia: Motorola 6809 CPU
Wikipage about the Motorola 6809 CPU and compatibles