Decades: 1690s BC 1680s BC 1670s BC 1660s BC 1650s BC - 1640s BC - 1630s BC 1620s BC 1610s BC 1600s BC 1590s BC
Significant People
... prove more difficult to circumvent, including copy-prevention codes embedded in broadcast HDTV signals and the Palladium operating system. A wide variety of DRM systems ...