Complex sentence: The monochrome Video Display Controller could simultaneously display combinations of 32 lines of 64 characters, and 128 x 64 resolution graphics by either displaying a normal character or a "pseudo graphics" character, with pixel blocks in a 2x2 matrix.
Split into simpler sentences: The monochrome Video Display Controller could simultaneously display combinations of 32 lines of 64 characters, and 128 x 64 resolution graphics. By either displaying a normal character or a "pseudo graphics" character, with pixel blocks in a 2x2 matrix.