Marks of respect soon flowed from around the world. "iSad" was a trending topic on Twitter. Mac Users Group Mexico released a statement that concluded, "Let's breathe deeply and say VIVA STEVE JOBS!"
Cook is in his third stint filling Jobs' sizable shoes.
But the store wasn't consumed by sadness. Inside, peppy music played and customers watched YouTube videos on iPhones. That they were consuming technology in ways that would have been unimaginable without Jobs may have been lost on many of them.
The 27 year old doctoral student in Beijing bought his first Apple product in 2006 and traveled by train to Hong Kong in September just to attend the opening of the company's first store there.
Prior to being named CEO, Cook had been chief operating officer since 2005.
the gates of Jobs' Palo Alto home, where family and friends gathered. Someone wrote "Thank you Steve" in lipstick on the window of an Apple Store in Santa Monica.
Steve Jobs tributes light up iPhones
Cook spent 2 months as CEO of the Cupertino, California, company when cancer surgery forced Jobs to step aside for 2 months. He also filled in another 6 months in 2009 when Jobs' health again became an issue.
"To some people, this is like Elvis Presley or John Lennon it's a change in our times," Robbins said. "It's the end of an era, of what we've known Apple to be. It's like the end of the innovators."
In China, one of the company's fastest growing markets, Henry Men Youngfan said he was shocked by the news that his hero had died.
carries and the Mac products he has faithfully bought for years. He was a symbol of the Reebok Maroon technology revolution who opened the eyes of a generation to the possibilities of the digital computing.
Robbins said Jobs' influence extended beyond the iPhone he now Reebok Aztec On Feet
then the tributes and condolences, were in news alerts, tweets and messages pulsing through the gadgets inside.
5, 2011 in Cupertino, Calif. Jobs, the Apple founder and former CEO who invented and masterfully marketed ever sleeker gadgets that transformed everyday technology, from the personal computer to the iPod and iPhone, has died. He was 56. (AP Photo/Marcio Jose Sanchez)
At the San Francisco Apple Store in Union Square, a crowd started forming. A few dabbed their eyes. Others huddled in small groups around their iPhones reading the details of Jobs' passing.
There were more traditional tributes closer to Silicon Valley. People placed flowers and scrawled chalk messages in front of Saucony Omni 15
CHICAGO There was no makeshift memorial or candlelight vigil for Steve Jobs at the Apple Store in downtown Chicago. The news of his death, and Saucony Jazz 91
Steve Jobs' successorRobertsdale, Alabama, native Tim Cook was named to replace the iconic Apple CEO after Jobs' abrupt resignation in August.
"I can't imagine a world without Apple products," said O'Reilly, a 33 year old electrician visiting from Ireland.
Scott Robbins, 34, a barber from San Francisco and an Apple fan for nearly 20 years, said he came as soon as he heard the news.
Peter O'Reilly knew something was wrong as shoppers perused iPhones, iPads and laptop computers Wednesday evening, and an employee with a somber look started to cry. She told him the news.
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