Since succeeding co-founder Steve Jobs in 2011, Cook moved the organization beyond its primary focus on devices to become one of the most profitable technology companies in the world.
This transition is significant because Cook oversaw a massive expansion of Apple’s services business, which includes digital offerings like cloud storage, music subscriptions, and mobile payments.
When he first took the role, the company faced a challenge where the iPhone accounted for half of its total revenue.
By building out infrastructure like Apple Pay and Apple Music, Cook successfully diversified the company's income and reduced its financial dependence on a single hardware product.
As Ternus assumes leadership, the company remains focused on its high-revenue services and the integration of its software ecosystem.
This change affects a global workforce and a massive base of users who rely on the digital platforms established during Cook's tenure.
While the former CEO has issued a final message to the staff, the business now moves forward under new management to navigate the balance between hardware innovation and its growing suite of digital subscriptions.