Investors will thus need to ponder whether its mainly computer-based ad business justifies such a lofty valuation.
The computer-animated ad opens with a squadron of futuristic soldiers facing down a fleet of robots in a destroyed cityscape.
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But in the case of Apple Computer's new ad campaign for the Mac, I'm smack in the middle of the target demo.
It was the alarming success of Apple Computer's iPod and iTunes music store that helped prompt the latest challenge from Apple Corps, although the two companies have been sparring ever since George Harrison spotted an ad for Apple Computer in a magazine in 1980.
In the ad serving phase, when your computer requests an advert from the OIX (because a website has included our tag in their page), the browser sends the random number and the categories are used to deliver the targeted ad, not the details of your browsing, or anything about you or your computer.
Today, a single Web page can contain computer code from dozens of different ad companies or tracking firms.
Take the Zeos International ad in a current computer magazine.
The tracking cookies that publishers and ad networks drop onto your computer as you move around the web treat the browser as a surrogate individual.
For example, if you are skiing down a mountain and are fortunate enough to be wearing a pair of Oakley Airwaves, their wearable computer goggles, you might want to see an ad for drinks or dinner in the lodge below.
Computer buying, mobile and much more just further complicate the ad picture.
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The job ad acknowledges Valve's debt to the personal computer but said the firm was trying to speed up the pace of innovation by "jumping in" itself.
Police tracked the suspect down via his brother's computer IP address, which was apparently used to respond to an ad posted by the first victim, Gueant said.
Police tracked Mohammed Merah down via his mother's computer IP address, which was apparently used to respond to an ad posted by the first shooting victim, officials said.
But the biggest problem may be the sheer complexity of doing ad campaigns that can reach consumers who increasingly flit from computer to smartphone to tablet and back throughout the day.
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Then Obama responds, with an ad mocking McCain as an out-of-touch, computer-illiterate candidate who can't possibly understand your problems.
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Last year, the online-ad industry launched a program to label ads that are sent to computer users based on tracking data.
If I muted my computer, turned the volume down too low or navigated to another window, the ad stopped.
The job description on the ad said Valve was "frustrated" by the lack of innovation in computer hardware and wanted to change that state of affairs.
Combing through the more than 500 answers Mr. Ibn-Ziaten received to his ad, investigators said they traced the origin of one email to a computer belonging to Mr. Merah's mother.
The potential for privacy legislation in Washington has driven the online-ad industry to establish its own rules, which it says are designed to alert computer users of tracking and offer them ways to limit the use of such data by advertisers.
Consumer electronics equipped with wireless mesh hardware could easily become a part of ad hoc networks in your house, allowing users to easily share music and video between their computer, TV or stereo.
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