Saturday, February 26, 2011

Another Beta from Mozilla

Mozilla has begun to wind down work on the next generation of its Firefox browser. In today's release of Firefox 4 beta 12, there are few improvements that will be instantly noticed by most users. Available for WindowsMac, andLinux, what has changed are under-the-hood improvements to how Firefox 4 handles Flash and more stable overall performance.
One visual change has been to move hover-over links to the bottom of the window, rather than place them in the location bar as was done in the previous beta. Along with the changes to Flash handling and stability, Mozilla said in its release notes for Firefox 4 beta 12 that the browser now has better integration of add-ons with hardware acceleration support.
The company hopes that this beta will be the last, according to an updated roadmap. The release of the twelfth beta indicates that all the hard-blocker bugs, the highest-priority problems with the in-development browser, have been fixed. Barring major problems with the remaining bugs, users can expect a release candidate soon.

Friday, February 25, 2011

Intel's Thunderbolt: What you need to know

Intel's long-awaited Light Peak technology, now known formally as Thunderbolt, is finally available on its first consumer device, and the company today unveiled more details about when we'll be seeing it in consumer PCs and gadgets.

First unveiled at the Intel Developer Forum back in 2009, the data transfer tech promises to replace a handful of ports with one that can do more things, and do them faster.

Its first inclusion in a computer is in Apple's MacBook Pro line, which refreshed earlier todaywith Thunderbolt ports across the line . Intel followed up a few hours later withˇa press conference about the technology, as well as its plans to bring it to computers and devices over the next year or so.

To help readers better understand what the technology is and why it matters, Here is are some frequently asked questions.

What is Thunderbolt?
Thunderbolt is Intel's new input/output technology that promises to bring transfer speeds that exceed what is currently available with USB 3.0, as well as extending that speed across several devices at once. In terms of where you'll see it, Thunderbolt will appear as a new port on laptops and PCs, as well as on devices that support it.

Intel Unveils Thunderbolt

The technology itself makes use of existing DisplayPort and PCI-Express data protocols to open up what you can do with a single port into multiple uses and at high speeds. This includes "daisy chaining" up to seven Thunderbolt-equipped devices together, while retaining full speed across all of them at once.

How fast is it?
Thunderbolt currently runs with a top speed of 10Gbps. Since there are two wire pairs, and the system is bidirectional, a single cable can have up to 40Gbps coursing through it at its maximum theoretical capacity (20Gbps upstream and 20Gbps downstream). Intel says that those speeds will one day top 100Gbps in data throughput when it moves from a copper wire to optical fiber. In the interim, copper wire has both speed and cable length limits, keeping cable length at 3 meters or less. The data transfer is also bidirectional, meaning it can both transmit and receive data at the same time, and at its top speed.

During Intel's press conference about the technology this morning, the company demonstrated it working on a MacBook Pro, pulling four raw, uncompressed 1080p video streams through a Thunderbolt storage array, and feeding into a Thunderbolt-attached display, all the while topping more than 600MBps in its transfer speeds. An earlier test of just file transferring had gotten it up to 800MBps.

To put this in perspective of what's been available up to this point, that's twice as fast as the theoretical limit of USB 3.0, 20 times faster than USB 2.0, and 12 times faster than FireWire 800.

When can I get it?

The long and the short of it is that you can get Thunderbolt today, so long as you buy Apple's MacBook Pro, which is the first laptop to ship with a Thunderbolt port as a standard port across its entire line.

As far as it arriving on PC laptop and desktop machines, the company today estimated that we wouldn't see it there until early next year given OEM design cycles. In the interim, there will be a slew of Thunderbolt-ready devices like hard drives and displays that will take advantage of the technology arriving in the spring. One of the first will be a LaCie external hard drive called the Little Big Disk that packs multiple solid state drives in a single enclosure that works with Thunderbolt.

Will I be able to add it to my old PC or laptop?
If your old machine is a PC you built, replacing its motherboard with one that will carry Thunderbolt will do the trick. During Intel's press conference today, the company stayed mum on offering it as an expansion to PCs through PCI Express slots, or laptops through ExpressCard technology.

Thunderbolt cables, which look just like Mini-DisplayPort cables.

Thunderbolt cables, which look just like Mini-DisplayPort cables.

(Credit: Intel)

Does this replace USB?
Intel is positioning Thunderbolt as an "adjacent" technology, one that will compliment it. That said, USB's ubiquity means it's not going anywhere just yet. Intel has also said it plans to support USB 3.0 in future chipsets alongside Thunderbolt.

How much will it cost?
Intel has stayed mum on cost besides saying that it was competitive with other high performance I/O solutions. As far as its inclusion in the new MacBook Pros, it's been added as a standard feature across the entire line, versus being a paid add-on at the time of configuration.

The same cost principle goes for Thunderbolt's cables too. Because Thunderbolt is not an open specification, that means companies cannot simply make their own through a license, though that could change once we're into the lifespan of the product.