When Tim Cook took the stage to introduce the new iPad back in March, he spent a lot of time talking about the “post-PC world,” a world in which people used tablets instead of PCs for the bulk of their day-to-day internet and media-consumption needs. The iPad, Cook said, was the poster child for this post-PC era.

New data released this week by Morgan Stanley appears to prove that he was right. The data shows that the PC market’s growth in the past year has all but stopped. The data projects that by the end of the year, the PC market will have grown by just 0.7%. While that growth is projected to improve somewhat in 2013, it is only expected to reach 1.4%.

The tablet market, on the other hand, is projected to experience massive growth. The data forecasts that the tablet market will grow 91.7% in 2012, though it will slow somewhat to 62.2% in 2013. As you might expect, the iPad will account for the majority of the tablet market’s growth, experience its own growth of 72.4%.

Of course, Apple’s own computers are hardly immune to the impact of the tablet. While Apple is expected to continue to outgrow the rest of the PC market – of which Cook was very proud during Apple’s last earnings call – it will not do so by much. Apple’s computer sales are expected to grow by 8.4% in 2012 and 8.0% in 2013. Check out the data for yourself below: