This year, that tower of babble is higher than ever, as new terms have come into being, and old ones have come to the fore. So, here’s a quick glossary of some of the current techno terms you may encounter when shopping for a computer, television, digital camera or cellphone this holiday season.

Aero: This is the graphical user interface that’s a key part of Microsoft’s new Windows Vista operating system, due out around Jan. 30. If you want to get the full benefit of Vista, make sure any Windows PC you buy this season is capable of running Aero. Many are not.

Antiblur: Also known as antishake or image stabilization, this is a crucial feature of digital cameras today. Because few cameras have optical viewfinders, users tend to hold them at arm’s length to frame the shot on the LCD screen. This increases the likelihood of shaking the camera. An anti-blur feature can correct that. The best antiblur technology is optical. Digital versions are less effective.

Draft N: This is a new, faster, longer-range version of the popular Wi-Fi wireless networking system, and many new Wi-Fi products are built to comply with it. It succeeds the common “G” flavor of Wi-Fi. But, there’s a catch. As the name implies, this technology is based on a draft of the forthcoming new Wi-Fi standard, to be called “N.” And the final standard could be different enough to make Draft N gear outdated in 12 to 18 months.

Dual Boot: A computer that is configured to boot, or to start up, in two different operating systems, depending on which the user chooses at any one time. The most important example of this currently is on Apple’s Macintosh computers, which now can be set up to run either the Mac operating system or Microsoft Windows using Apple’s free dual-boot software, called Boot Camp.

Dual Core: A type of microprocessor — the brain that runs a computer — which packs the equivalent of two processors into a single chip. The best known dual-core processors in consumer computers are Intel’s Core 2 Duo and Core Duo, but rival AMD also makes them. They are a good bet for most people.

Flash Player: A small-capacity digital music player, like Apple’s iPod Nano and Shuffle. These players use flash memory, a type of memory chip that behaves like a small hard disk to store music, photos and videos. Larger players, such as the full-size iPod and the new Microsoft Zune, use actual hard disks, like the ones in computers. Flash memory is also what’s inside the small memory cards used in digital cameras.

HDMI: This acronym, for High-Definition Multimedia Interface, describes a new kind of cable for hooking high-definition TVs to things like cable boxes and DVD players. It provides a high-quality digital feed, and combines both audio and video signals via a single connection. When shopping for an HDTV, make sure it has HDMI connectors on the back.

HSDPA: An awkward name for a new high-speed cellphone network being deployed in the U.S. by Cingular Wireless. Its full name is High Speed Downlink Packet Access, and it’s intended to compete with successful high-speed networks from Verizon and Sprint called EVDO, or Evolution Data Only. All of these new networks allow Internet access at about the speed of a slow home DSL line, which is a big boost for cellphones. If you care about email and Internet access on a phone, and you are using Cingular, get a phone that can handle HSDPA.

Quad Band: A cellphone that handles all four bands, or frequencies, used in various countries by wireless phone companies adhering to a world-wide standard called GSM. Examples are Cingular and T-Mobile in the U.S., and Vodafone and Orange in Europe. A quad-band phone can be used on any GSM network anywhere, so if you travel overseas a lot, you may want one.

RAW: A file format for digital photographs that is uncompressed and largely unmodified by the camera’s chips, and therefore includes every detail of the color and image. It is prized by professional photographers and serious amateurs, who look for cameras and photo software that can handle the RAW format. But it produces enormous files, so most users should ignore it and stick with the very good, very common compressed photo format, called JPEG or JPG.

Shared Memory: A computer configuration in which the video circuitry lacks its own dedicated memory and must share, or drain off, a portion of the computer’s main memory. This is common in lower-price computers. It’s fine, but it reduces the amount of memory available to the nonvideo functions of the computer, so you may want to add extra memory to a PC of this type.

WAN: Any wide-area network, such as a cellphone network, that can be used to send and receive data. It is distinguished from a LAN, or local area network, such as the wired and wireless networks deployed inside a business or home. Some computer makers use the term for the built-in cellphone modems in their laptops.

Good luck with your gift shopping. Don’t get trapped in the tower of babble.

Email me at mossberg@wsj.com.

The Finnish cellphone giant is introducing a phone called the E62 that resembles, and is aimed at, the Palm Treo, the latest BlackBerry phones from Research In Motion and the Motorola Q.

Nokia’s E62

Like those other smart phones, the E62 has a full keyboard and is actually a little computer that is meant to be a serious email device as well as a phone. Like the Q and the Treo, it can play music and videos, surf the Web, and display photos.

Unlike the Treo and the Q, however, the Nokia E62 can run a service licensed by RIM that allows it to behave like a BlackBerry. It can send and receive email using either a corporate BlackBerry server or a consumer BlackBerry service offered by a cellphone carrier.

I’ve been testing the E62 and I like it. It’s fairly utilitarian-looking and won’t likely become an object of desire like the Q and the Treo. But it gets the job done and may well be the best bargain in its category.

In the past, Nokia has relied on a smart-phone design that was a thick, long device that flipped open to reveal a wide, horizontally aligned keyboard and screen. That design sold OK in Europe but flopped in the U.S. Now, with the E62, Nokia is adopting the American-type design pioneered by the BlackBerry and used by the Treo and the Q.

Nokia is being coy about the timing, pricing and wireless carrier for the E62. But I expect it to be available late next month from Cingular Wireless. And I expect it to cost even less than the Q, which at $199 is the least expensive product in this group. The latest Treo models, the 700p and 700w, are being sold by Verizon Wireless for $299 right now, after rebates.

The E62 works on the so-called GSM cellphone standard that’s universal in Europe, and used by Cingular and T-Mobile in the U.S. This means it can be used in both America and Europe, as well as in some other countries. The Treo 700 models, sold by Verizon and Sprint, and the Q, sold only by Verizon, use an American technology called CDMA that doesn’t work in Europe or in most places outside the U.S.

However, that GSM technology also saddles the E62 with its biggest drawback: It is much slower at receiving data such as email and Web pages than the Q or the Treo 700, or even certain BlackBerry models. That’s because it uses EDGE, a GSM variant that has been blown away by a technology called EVDO used by the Treo 700 and the Q. In my tests, EVDO has been up to seven times as fast as EDGE.

The E62 also lacks a camera, unlike the Q and the Treo 700. But, like them, it has Bluetooth wireless technology.

Nokia has built in a sharp, vivid screen with a resolution of 320 by 240. That’s better than the resolution on the Treo 700w and identical to the Q’s screen resolution — but inferior to the resolution on the Treo 700p.

The new Nokia is a bit larger than the Q — wider, thicker, longer and heavier. But it’s thinner and lighter than the Treo 700, albeit a bit wider and longer.

In my tests, the voice quality of the E62 was very good. Battery life was decent, with a talk time of between four and 5.5 hours. The phone accepts memory cards for storage of files and applications.

The BlackBerry Connect service and software, likely to cost around $45 a month, worked well. After I installed the BlackBerry software on the new Nokia and configured the service on the E62 and on an accompanying Web site, the service “pushed” all emails from my regular account to the E62 reliably. There’s no limit to how much email you can receive, though the carrier may intervene if it believes you are abusing the service.

The only downside of the BlackBerry Connect feature is that there’s a noticeable latency when you open an email before it displays on the screen.

In my tests, the N62 could open most major email attachment types, including Word documents, Excel spreadsheets and Adobe PDF files. It’s also supposed to work with PowerPoint presentations, but in my tests, this function failed.

The user interface on the E62 isn’t nearly as fast or slick as on the Palm operating system used by the Treo 700p. But I preferred it slightly over the Windows Mobile operating system used on the Treo 700w and some other smart phones. There were still too many menus and extra steps compared with the Palm system, but at least you can delete an email with one click. Turning on the speaker phone was also quick and easy.

I was able to synchronize the E62 with Microsoft Outlook, and bring over my contacts and calendar, using the separate Windows software that comes with the phone. And I was able to load up the memory card with pictures and songs from my computer and use them successfully on the E62.

All in all, the E62 is a solid and inexpensive smart phone.

• Email me at mossberg@wsj.com.