Thomson EF936x

The Thomson EF9365-66 is a type of Graphic Display Processor (GDP) by Thomson-EFCIS.^[1] It was designed (1976-1978) by Philippe Matherat,^[2][3][4] then a student at the École normale supérieure in Paris^[5][6][7]. The chip could draw at 1 million pixels per second, which was relatively advanced for the time of its release (1980). There are various versions of the chip with slightly different capabilities.^[8]

The first version, EF9364 CRT Processor, an alphanumeric display controller, was introduced in 1977.^[9][10]It was designed by Jean Gastinel^[11].

In 1982 Commodore released a "High Resolution Graphics" board for the PET based on the EF9365 and EF9366 chips, allowing it to display 512 × 512 or 512 × 256 resolution graphics.^[12][13][14] The EF9366 was also used on the SMP-E353 graphic card for the Siemens SICOMP [de] computer series and on the NDR-Klein-Computer introduced in 1984.^[15]

Version EF9369, introduced in 1984, was used on computers such as the Thomson MO5NR^[16], MO6^[17], TO8,^[18] TO9^[19] and TO9+,^[20] and from 1985 to 1989 on the DAI Personal Computer.