San Jose, California-based RasterOps Corp is claiming a breakthrough in in colour conversion: the company has developed an ASIC chip that it says can convert cyan, yellow, magenta and black to red, green and blue for screen display, something the company describes as painfully slow with software; the company claims that it is the first company to overcome the fundamental challenges in keeping colour consistent between the monitor and printer – printed material is of course produced with subtractive components rather than the red, green and blue guns of the colour displays; the company says its conversion is in real time, and reduces the memory needed since colour does not need to be stored in both formats; RasterOps expects to introduce specific display adaptors for the Apple Computer Inc Macintosh II and Sun Microsystems Inc Sparcstation families using it later this year.