Google announced on Wednesday a change in its executive ranks that could have broad implications for the mobile business.
Andy Rubin, who had been senior vice president in charge of Android, Googleâs mobile operating system, has been replaced by Sundar Pichai. Mr. Pichai is the senior vice president of Chrome, and will now oversee Android as well.
Google has been in a confusing position because it has two unrelated operating systems: Chrome and Android.
At first, Google said they were separate: Chrome was for computers and the Web, and Android was for touch-screen mobile devices and apps.
But the lines among devices have blurred. Now, some computers (like the Chromebook Pixel that Google introduced last month) have touch screens, and people use mobile devices the way they used to use computers.
The personnel change is a sign that Google now sees the need to somehow coordinate or mrge the two operating systems.
Though Android has been wildly successful, with 750 million devices activated worldwide, computers running Chromeâs operating system have not.
At a press event to introduce the new Chromebook, Mr. Pichai drew less of a distinction between the two operating systems than Google executives had in the past.
âSo far, we have been in a world which has been pretty straightforward: Android phones and tablets and Chrome laptops,â Mr. Pichai said. âBut lines do blur.â
âThe way we think about it internally,â he said, âis as a user, you sign in to both these devices, you use search, Maps, Gmailâ and other Google products. âAll your Google services work seamlessly across devices.â
The company did not provide any details about how Chrome or Android might change under the new leadership.
âToday weâre living in a new computin! g environment,â Larry Page, Googleâs chief executive, wrote in a company blog post announcing the change. âPeople are really excited about technology and spending a lot of money on devices.â
Mr. Pichai has had a fast rise at Google and has experience developing hardware, a new area of focus for the company. In addition to Chrome and Android, he also oversees Google Apps, like Gmail and Drive, for consumers and businesses.
Mr. Rubin is a big name in the mobile world. He is a co-founder of Android, which Google bought in 2005 and turned into Appleâs biggest mobile competitor and the most-used mobile operating system.
Google did not say why Mr. Rubin was replaced. Despite Androidâs success, it is at a crossroads as device-making partners like Samsung and Amazon increasingly become competitors.
Mr. Page praised Mr. Rubin and said he would stay at the company in a new position, though he did not say whatit would be. But there were hints that Mr. Rubin could join Google X, the companyâs lab for creating new technologies like driverless cars, Google glasses and other wearable technologies. The glasses run Android.
Mr. Page wrote, âAndy, more moonshots please!â Google refers to Google X as a lab for âmoonshots,â or world-changing ideas.
Motorola, the Android cellphone maker that Google spent $12.5 billion to buy, could also benefit from Mr. Rubinâs perspective as it tries to make phones that compete with those from Apple and Samsung. While Mr. Rubin was overseeing Android, Google tried to keep a strict wall between the two companies to appease Motorolaâs competitors.