Baku, December 27 (AZERTAC). While other industries struggled, consumer technology seemed to march ahead as always in 2011, with important new products and services continuing to roll out. Sure, some tech companies, like BlackBerry maker Research In Motion, suffered reverses. And some products, like Hewlett-Packard`s TouchPad, flopped. But many shone.

So here is a look at a few of the biggest tech products of the past year, with some analysis of what they signified and what issues they raise for 2012. As with all my columns, this one is focused only on products and services provided to consumers. Also, as usual, this column isn`t meant to offer investment advice or to evaluate the management skills or financial condition of companies.

Even in a year when its iconic leader, Steve Jobs, resigned as CEO and then passed away, Apple kept going from success to success. In March, it introduced the iPad 2, a thinner, lighter, faster version of its groundbreaking tablet and sold tens of millions of them. In October, it brought out the iPhone 4S, which proved popular even though it looked identical to the prior model. One reason: The phone introduced a voice-controlled artificial-intelligence system called Siri that answers questions and performs tasks without requiring typing or searching. Siri, while still rudimentary, could herald a revolution in practical artificial intelligence for consumers.

The lesson here is that Apple is driving the industry toward simpler, more reliable digital experiences tied into ecosystems of content and cloud services. It is expected to bring out radically new iPhones and iPads in 2012. But can it fend off challenges from popular, rapidly improving rivals using Google`s Android operating system? And, in the absence of Mr. Jobs, can it keep churning out game-changing hits?

Despite some initial software flaws and its chunky, plain hardware, the diminutive Fire appeared to be the first color tablet to gain significant traction against the iPad. The biggest reasons are its ultralow $199 price and its tie-in to Amazon`s huge content library. But the Fire may have started a trend that could be a problem for Google: It demotes the Android operating system to an under-the-covers piece of plumbing, ignoring Google`s user interface and apps marketplace.

In 2012, Amazon is expected to bring out a larger, possibly sleeker Fire, and, if it continues to prove popular, it could attract larger numbers of apps designed for the Fire and sold only through Amazon. But despite its success with simple e-readers, Amazon has little experience as a maker of general-purpose computing devices, and it will have to be nimble and creative to keep up with Apple and more-traditional Android rivals.

Though several cellular technologies claim the moniker "4G" to indicate fast data speeds and greater capacity, only one, LTE (Long Term Evolution,) delivers true broadband speeds consistently. This past year, it finally spread significantly in the U.S., both in terms of geography and in the number of devices supporting it. The LTE leader by far is Verizon Wireless and it has the potential to make the wireless Web, and wireless streaming of video, the equal of their wired counterparts. AT&T is racing to catch up and Sprint, which uses a different 4G system, says it will join the LTE parade.

But at this stage, LTE still consumes too much battery power. And LTE networks, if they become the norm, could get overwhelmed. To fend off this prospect, the biggest carriers in 2011 began charging more for greater data usage, a move that could curb the spread of innovative services that rely on large data downloads, such as video streaming and sharing of music and high-resolution photos.

Many players began offering consumers the opportunity to both store their data on, and run apps from, remote servers on the Internet, a system called cloud computing. Google even introduced a new kind of laptop, the Chromebook, that has almost no internal storage and relies almost entirely on the cloud. An example of a cloud service: music "lockers" that store all your songs on multiple devices. Cloud services are sure to expand in 2012, but questions remain on their reliability, security and privacy. And while most now cost little or nothing, these offerings could become another monthly fee burden for consumers.

In 2011, Android overtook Apple`s iPhone and iPad operating system, called iOS, in users. Though no single Android device is as popular as the iPhone or iPad, Android is now the collective leader, with hundreds of devices using it. Samsung, in particular, had success with its Android-based Galaxy devices. And a new version, called Ice Cream Sandwich, continued Android`s steady improvement by making it easier to use. However, Google may be losing control of Android, as hardware makers and cellular carriers redefine it to suit their own needs, and fail to offer consumers updates in a timely fashion. Except for the Kindle Fire, the operating system hasn`t caught on in tablets.