John Ternus takes the helm at Apple
Tuesday is John Ternus' first day as CEO of Apple, following Tim Cook's 15-year run as the top leader. Ternus is a 25-year company veteran and was Apple ’s senior VP of hardware engineering. Ternus takes over as Apple confronts major challenges due to soaring memory costs and the company's precarious position in AI. CNBC technology reporters Kif Leswing and MacKenzie Sigalos discuss what's next for the iPhone maker and what to expect from Ternus and Cook in their new roles.

TL;DR
- John Ternus is Apple's new CEO, starting Tuesday.
- He replaces Tim Cook, who led for 15 years.
- Ternus has 25 years of experience at Apple, previously leading hardware engineering.
- Apple faces challenges including rising memory costs and its AI position.
- CNBC reporters Kif Leswing and MacKenzie Sigalos will discuss future expectations.