Sun Microsystems has introduced a high resolution 24-bit colour version of its Sparc-based Sun-4/110 workstation, priced at UKP20,000 in its diskless configuration. The Sun 4/110TC – the initials stand for True Colours – includes a 24-bit frame buffer that provides a choice of 16.7m colours, where previously only 256 colours were available. In a seperate announcement, Sun enhanced the graphics capabilities of its 80386-based 386i workstations with optional graphics add-in cards for EGA and VGA compatibility on MS-DOS sessions: the card plugs into one of the AT expansion slots on the 386i, and is priced at UKP700. And Sun has expanded its TAAC graphics and applications accelerator (CI No 971) by adding an image processing library and volume rendering toolkit. These, and the existing graphics library and video control routines make up the complete TAAC-1 package, which sells for UKP500.