It's a deceptively simple way to describe what's actually a mind-boggling phenomenon of engineering. It's hard to visualize, but the chart above helps put Moore's Law in great perspective. Remember the venerable Pentium computer chip, which saw many a PC through the 1990s? Released in 1993, it had 3.1 million transistors. Today, two decades later, the most powerful chips have close to 3 billion transistors, a nearly 1000-fold increase.