Owura Kwadwo Hottish illustrates a window of Microsoft Word using colored chalk on a blackboard. He uses it to teach computer skills to students at the Betenase M/A Junior High School in Kumasi, Ghana. Frimpong Innocent hide caption

Sci-fi writer William Gibson says the best way to imagine new technologies and how they could affect society is not through current expertise but by talking to "either artists or criminals." Ron Bull/Toronto Star via Getty Images hide caption

After collecting and refurbishing IBM's Model F keyboards for years, Joe Strandberg decided he wanted to start manufacturing them. Courtesy of Joe Strandberg hide caption

"I lost the first good novel I ever wrote to a computer disaster. It happened at a crucial time in my life, when I was still figuring out if I could even do this thing — become a writer." Katie Edwards/Getty Images/Ikon Images hide caption

Cash machines in a supermarket in Kiev weren't working on Wednesday after a cyberattack paralyzed computers in Ukraine and elsewhere. Victims included government offices, energy companies, banks and gas stations. Efrem Lukatsky/AP hide caption

An Intel advertisement on a Hewlett-Packard desktop computer in 2012. Paul Sakuma/AP hide caption

Workers at the Department of Homeland Security's National Operations Center in 2015. The Obama administration proposes $3.1 billion in upgrades to federal computer systems. Jim Watson/AFP/Getty Images hide caption

This 2005 silicon wafer with Pentium 4 processors was signed by Gordon Moore for the 40th anniversary of Moore’'s law. Science & Society Picture Library/Getty Images hide caption

In the game Go, players use white or black stones to attempt to fence off territory. iStockphoto hide caption

Dave Rauchwerk is CEO of Next Thing Co., which makes the CHIP computer. Laura Sydell/NPR hide caption