CU-GRAPH is a Thomson EF9366 based graphics card. In its native format it was black and white only with 16K of memory and would produce text up to 32 rows of 85 characters and with graphics up to 512 x 256 pixels superimposed on the text. It also included a bell output ! Wth the addition of a second card - CU-GRAPH-extension, carrying an additional 48K of RAM, it could produce full colour text and graphics. CU-GRAPH-extension also included a printer interface.
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