“Since President Barack Obama was elected eight years ago, a great deal about technology has changed inside and outside the federal government. Consider one simple metric: data production. In 2007, the world created some 295 exabytes of data, or roughly 404 billion CD-ROMs’ worth of data. Stacked on top of each other, those CDs would create a tower so tall it could reach the moon 238,900 miles away.”
Source: Assessing the Obama Administration’s Tech Legacy – Nextgov.com