Apple turned 40 on Friday, and it is an extremely different business from the startup that was audacious that Steve Wozniak and Steve Jobs found in 1976 in a Silicon Valley garage.

Now, the manufacturer of Mac computers and iPhones is the most precious public corporation in the world, with 100,000 workers and a new, multi-billion dollar headquarters in Cupertino, California, set to open next year.

Unsurprisingly, longtime workers like applications vice president Guy “Bud” Tribble differ.

“We still believe we are going to shift the world,” said Tribble, one of a half dozen Apple staffers picked by the organization to briefly reminisce with reporters this week. Tribble began in 1980 with Apple and worked on the initial Macintosh team.

The organization boasts that more than 1 billion Apple apparatus — Apple and Macs Watches, iPods, iPhones, iPads — are in routine use all over the world. Those products are widely respected and copied. But Apple depends on the iPhone for two thirds of its own sales. And this past year, after selling a record amount of iPhones, analysts say this year sales are leveling off and might even drop.

Apple might discover that it’s almost impossible to keep its leadership in the sector as it enters middle age. Some specialists say it is becoming more challenging to produce new improvements to recognize Apple’s products from those of its rivals.

He mentioned longtime competitor Microsoft viewed as an industry laggard, but credited with initiating tablet computers with detachable keyboards — a group even Apple is adopting with the company-oriented iPad Pro. By contrast, he noticed, Apple’s latest iPhone is a downsized version of earlier versions.

Longtime staffers said Apple has the passion to make ground-breaking products.

“We have done this more times than anybody else,” said Greg Joswiak, a 30-year worker and vice president for product promotion. He recorded iPad, iPhone, the iPod, iTunes as well as the firm’s on-line App Store, the fresh Apple Watch and recent initiatives to generate new health-tracking and medical research programs for Watch and the iPhone.

Analysts say developing products in those groups could take, although Apple is broadly considered to be investigating new companies, from electric cars to virtual reality.

Constantly close about special strategies, Apple declined to supply the job title of Nag. Her resume demonstrates a history of assisting gain FDA approval for new medical innovations.

Apple’s increase hasn’t rough. Jobs was forced out in the 1990s, resulting in a revolving door for chief executives until he returned in 1997, as the firm he co-founded was on the verge of collapse.

And in 2000, when the dot-com bubble burst, Joswiak said when opponents were tightening their belts, Jobs refused to cut spending. Joswiak said Jobs vowed to “invest in ourselves more than ever before. We subsequently endured through 11 straight quarters” of gloomy monetary returns.

Jobs’ departure from cancer in 2011 led to the aggrandizement of present CEO Tim Cook, who is not mild but softer talked. Cook is credited by Tribble with preserving Apple’s focus on quality goods, even as his own path has been taken by Cook in running the business.

Much more than Occupations, Cook uses his visibility to speak out on social problems, from global warming to individual privacy and civil rights.

Apple is still one of the very sought after brands.