When the annual conclave kicks off this week, organizers expect more than 140,000 people -- roughly the population of Syracuse, N.Y. -- to descend on Las Vegas. They will mill around 1.8 million square feet of booths and exhibits, equivalent to 31 football fields.
The 2,800 or so exhibitors are hoping to set the tone for the year by showing off tons of tablet computers, throngs of 3-D TVs and untold numbers of slim, light laptops called ultrabooks.
But a look back at the products heavily promoted at CES in recent years reveals few successes.
• In 2009, "netbooks" -- tiny, cheap laptops -- were a hot category at the show. They did have a good year, but interest was already waning when Apple Inc. obliterated the category with the launch of the iPad in 2010.
Another big, eagerly awaited launch at the 2009 CES was Palm Inc.'s webOS software, running on a new generation of smartphones. Those devices debuted later that year to good reviews and dismal sales.
In 2010, TV makers made a big push with 3-D sets, hoping to ride the popularity of 3-D movies such as "Avatar." Sales turned out to be disappointing as buyers balked at wearing glasses and found little to watch in 3-D.
A big part of the "curse" of the show is that the company that has been driving trends in the industry, Apple, doesn't show products there.
It's not that Apple dislikes CES in particular. It just doesn't do trade shows. When it has something new to sell, it puts on its own press conference. That way, it can control everything.
Microsoft Corp. seems to be adopting the same strategy. It revealed last month that the 2012 show will be the last one that its CEO will kick off with a keynote speech. That ends a run of 15 straight years. It's also the last time Microsoft has a booth at the show.
So what potential flops will be hyped at the show this year?
•Windows 8 will be an important new product in 2012, but the late-year launch means PC and tablet makers hoping for a CES boost have been left hanging.
The new operating system is built for touch screens, the kind made popular by iPhones and iPads. Windows 8 will also run on cellphone-style processing chips, the type used in most tablets. That should improve battery life considerably over the PC-type chips that Windows runs on today. However, many analysts believe Microsoft has already lost this market to Apple.
•As a stopgap, PC makers will show off ultrabooks. They're essentially Windows versions of the MacBook Air laptop, which uses chips instead of a spinning hard drive for storage. That makes the machines lighter and thinner but also more expensive.
Having failed to catch the iPad wave last year with $500 tablets, some tablet makers will try to catch the Kindle Fire wave with smaller, cheaper tablets.
TV makers will be talking about "smart," Internet-connected sets, but they're not exactly new.
However, we'll see the first full-size TVs that use organic light-emitting diodes in place of LCDs. LG Electronics has confirmed that it will be showing off a 55-inch set, to be sold late in the year. The price hasn't been disclosed, but is likely to be high. OLED sets can be painfully thin -- in LG's case, less than a third of an inch -- and should boast improved image quality as well.
We'll also see TVs that are "smart" in the sense that they respond to gestures or spoken commands. However, until cable set-top boxes get smart, too, we won't be able to abandon remotes.
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