Internships provide key benefits, including the learning activities common to your course and your career goals, helping you acquire valuable work experience prior to graduation. In this 3 part series, we are covering the popular CEO's who started their careers as interns.
Steve Jobs (Founder, Apple)

Steve Jobs, one of the most notable entrepreneurs in the history, did his first internship at the age of 12 while he was studying at Homestead High School in Cupertino, California. While still studying in school, Jobs did his summer internship at the Hewlett-Packard Company (HP) in Palo Alto, California. After his internship, he was later hired there, where he worked with Steve Wozniak as a summer employee. They bother later went on to co-found Apple Computer. This is how Steve Jobs started his professional life along with Steve Wozniak.
Sergey Brin (Co-Founder, Google)

Ranking on number 20th on the Forbes List of Powerful People, number 13th on the Forbes 400 and on number 24th in the Forbes list of Billionaires, Sergey Brin spent his summer as an intern at Wolfram Research, the company who is popular for it's software Mathematica and Wolfram Alpha, a computational knowledge search engine.
In 1993, when Wolfram was already an established figure in the tech industry, the young During the internship, he developed a code analysis and extraction tool for the Mathematica source code. Here is a copy of his resume, while he was a student at Stanford University.
Indrani Nooyi (CEO, PepsiCo)

In 2014, Indra Nooyi was ranked at #13 on the list of Forbes World's 100 most powerful women, and was ranked the 82nd most powerful woman on the Fortune list in 2016. Recently, she became the ‘most generous graduate’ of Yale School of Management, where she donated a undisclosed amount to endow the deanship of the school and inaugurate Yale Innovation Fund.
While at Yale, she completed her summer internship with Booz Allen Hamilton, an American management consulting firm. Alongside her internship, while in the US, since she had moved there with very little money, she also used to work as a ‘Receptionist’ in a night shift.