EMC acquired lots of companies during these years. And one picture is worth thousands of words.
And I got the inspiration from this article, a visualization about Microsoft’s evolution, to create such a timeline to visualize EMC’s evolution in the past 10 years.
SIMILE Timeline is used to visualize the data. After some searching, I found something similar(In China, you have to work around GWF to view this page), which incorprates Google, Microsoft, Yahoo’s acquisitions.