Originally Posted by toattett
You are probably talking about the "16 colors" mode. In "16-bit" color mode, most people won't even notice the differences, and it was the default mode before XP.
Correct, the old CGA/EGA 4-bit colour palette, which gave you 16 colours. 16-bit gives you 65,536 colours.
I am starting to feel old now, as my first PC XT had Hercules graphics, and that was already my fourth computer after the ZX Spectrum, MSX and MSX-2.