Tim Cook’s final day as Apple’s chief executive officer marks the end of one of the most successful leadership transitions in modern corporate history, as the technology giant prepares to hand control to hardware chief John Ternus on September 1.
After 15 years as CEO, Cook will step down from the role he inherited from Steve Jobs in 2011 and become Apple’s executive chairman. Cook may be leaving the CEO role, but he is not leaving Apple. As executive chairman, he will continue to support aspects of the company, including engagement with policymakers around the world.
John Ternus, Apple’s senior vice president of Hardware Engineering, will take over as CEO, marking only the third major leadership era in the company’s modern history.
Cook leaves behind a company that has become one of the most valuable businesses in history, with Apple’s market value rising during his tenure. Under his leadership, the company expanded beyond its dependence on the iPhone, building major businesses around wearables, services, and its wider ecosystem.
From Steve Jobs’ successor to Apple’s empire builder
When Cook became CEO in August 2011, the biggest question was whether anyone could successfully replace Steve Jobs.
Jobs was widely regarded as one of technology’s greatest product visionaries. Cook, by contrast, was known primarily for his operational expertise and supply-chain management. However, Cook changed the definition of what successful leadership at Apple could look like.
Rather than trying to become another Steve Jobs, he focused on scaling Apple. The company expanded its global supply chain, strengthened its manufacturing capabilities, and turned operational efficiency into one of its biggest competitive advantages.
During his tenure, Apple introduced and significantly expanded products and categories including the Apple Watch, AirPods and Vision Pro, while its services business grew into a major revenue engine spanning Apple Music, iCloud, Apple TV+ and other subscription offerings. Apple said its services business reached more than $100 billion in annual revenue.
Cook’s greatest achievement may not be a single product but may be the transformation of Apple from a company largely defined by breakthrough devices into a technology ecosystem with billions of active devices, recurring services revenue and one of the strongest consumer brands in the world.
**Apple’s next chapter **
Despite the scale of Cook’s success, John Ternus will inherit an Apple facing a very different technology space.
The company has entered a period dominated by artificial intelligence, where competitors including Google, Microsoft and other technology companies have moved aggressively to establish themselves as leaders in generative AI.
Apple has faced growing criticism over its slower progress in artificial intelligence, particularly as consumers expect AI to become central to smartphones, computers and digital assistants.
This means Ternus’ leadership will likely be judged differently from Cook’s. Cook’s era was largely about scale, ecosystem expansion and operational excellence. The next era may be defined by whether Apple can create the next major computing platform.
That challenge could include artificial intelligence, new hardware categories and potentially a deeper push into emerging devices.
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Apple is already preparing for one of its most important product events under its new leadership. The company is expected to hold a major iPhone launch event on September 9, with reports suggesting that a foldable iPhone could become one of the major announcements.
Ternus will effectively begin his tenure with one of the most closely watched product cycles in Apple’s history.
Why John Ternus could be a shift back to hardware
Ternus comes from Apple’s hardware engineering division and has spent much of his career inside the company.
His appointment could signal a renewed emphasis on product development at a time when Apple faces increasing pressure to demonstrate that it can remain innovative in an industry moving quickly toward AI-powered devices.
Apple remains financially powerful, with an enormous global customer base, a highly profitable services business and one of the strongest ecosystems in technology.
What comes after the smartphone era?
The iPhone remains central to Apple’s business, but growth in the global smartphone market has slowed. Technology companies are now searching for the next major platform, whether through AI assistants, wearable computing, mixed reality, or entirely new forms of personal devices.
Tim Cook will leave behind a legacy that is different from Steve Jobs because Jobs transformed Apple through bold product reinvention but Cook transformed it through scale.
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He proved that Apple could survive without its legendary co-founder and become even larger. He expanded its services business, strengthened its global operations, and turned Apple into a financial powerhouse capable of generating enormous revenue and shareholder returns.
Yet his departure also creates an opportunity for Apple to redefine itself.
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