Question: what is the difference between photoshop dcs 1.0 and 2.0?
Answer: Photoshop DCS 1.0/2.0. The DCS (Desktop Color Separation) format was developed by Quark for the purpose of printing color separations. ... The major differences between DCS 1.0 and DCS 2.0 are that 2.0 supports grayscale images and extra spot color channels, whereas 1.0 doesn't.