A look back at the relatively short history of the White House's chief technology officer role and accomplishments of the first four people to hold it.

He's now the nation's fourth chief technology officer.

Over a thousand members of the government and private sector IT community attended the annual event.

One defining characteristic of U.S. Chief Technology Officer Megan Smith's leadership over the past year has been her push for inclusion. That message carried through Monday at the White House's second LGBTQ Tech and Innovation Summit, where Smith emphasized the need for gay, lesbian, bisexual and transgender innovators to bring their skills to government.

Solving America's biggest problems isn't so different from angel investing in a new idea or technology, according to U.S. Chief Technology Officer Megan Smith.

State and city tech groups are creating new streams of tech talent across the U.S.