Facebook COO Sheryl Sandberg is making waves with her new book, Lean In: Women, Work, and the Will to Lead , which encourages women to step up and take a seat at the conference table. On Good Morning America earlier this week, Sheryl said that the book is about "believing that we can do anything a boy can do ."
The Facebook COO certainly knows what it takes to make it to the top — she's part of an unfortunately small circle of women who currently hold a top C-suite executive spot across major technology companies. From IBM's first female CEO in 100 years to the woman who cofounded a smartphone empire, learn more about technology's leading ladies in the gallery.
Cher Wang, Cofounder and Chairperson, HTC
Though she may not be a household name in the US, the products Cher Wang helped to create as cofounder of smartphone giant HTC certainly are known to digital addicts. HTC makes more than one out of every six smartphones  in America. Before founding HTC, Cher earned her master's degree from the University of California, Berkeley.
Meg Whitman, President and CEO, HP
Former president and CEO of eBay, Meg Whitman returned to the world of corporate technology this September when she was appointed the president and CEO of computer giant HP. She has been a member of the company's Board of Director since January 2011. Some of Meg's earlier employers included Disney, DreamWorks, and the Hasbro toy company.
Ursula Burns, CEO and Chairperson, Xerox
With a background in mechanical engineering, Ursula Burns was named CEO of Xerox in July 2009, after 30 years with the company. Her promotion marked the first time an African-American woman was named CEO of a major American corporation , and the first time a woman succeeded another woman as CEO of such a large company. Ursula first started with Xerox as a college intern and held many roles there before her current position, including product development and even working as an executive assistant.
Virginia "Ginni" Rometty, President and CEO, IBM
With degrees in computer science and electrical engineering from Northwestern University, Ginni Rometty worked with technology giant IBM for 30 years before being named to its top role. She has worked within various departments of IBM including global services, financial services, and most recently in its marketing and communications group.
Sheryl Sandberg, COO, Facebook
After joining Facebook as chief operating officer in 2008, Sheryl Sandberg helped to make the social networking site profitable as well as grow its active user base to include 11 percent of the world's total population. Before Facebook, Sheryl worked with another technology giant, Google, as VP of its global online sales and operations.
Safra A. Catz, President and CFO, Oracle
As a business software company, Oracle isn't as exciting to everyday consumers as Apple, but their products are used in companies around the globe, and as president and CFO, Safra Catz is one of its top leaders. She's been included on both Forbes and Fortune's lists of powerful women in business.
Marissa Mayer, CEO, Yahoo
Marissa Mayer spent 13 years at Google as an engineer, designer, product manager, and executive before becoming Yahoo's chief executive in 2012. The businesswoman bought her first computer in college  but went on to become one of the most influential programmers in the industry.
In addition to her role as CEO, Marissa also teaches computer programming at Stanford and sits on the board of directors for Yahoo, Cooper-Hewitt, New York City Ballet, and many others.