*'''TO7''' : produced from 1982 to 1984. supllied Supplied with only 8K 24K RAM(16K used by the video)... so actually 8K, upgradable into 32K48K (so actually 32k because of the 16k video). it can display only 8 colours.
* '''TO7/70''' : in 1984, this one replaced the "faulty " TO7.
The TO7/70 had a bit more RAM (48k64K, upgradable into 112K128K) and some bug fixes (implementations for the NanoReseau). It could display twice more colours. Also the keyboard was changed into a rubber keyboard, then mechanical keyboard.
<gallery caption="Thomson TO7 first generation range of computers">