In-Depth with the Windows 8 Consumer Preview
by Andrew Cunningham, Ryan Smith, Kristian Vättö & Jarred Walton on March 9, 2012 10:30 AM EST- Posted in
- Microsoft
- Operating Systems
- Windows
- Windows 8
Networking improvements
The widespread adoption of cellular connectivity in an increasing number of laptops and tablets have made our computing devices more mobile than ever before, but it has also given rise to an age of data caps, bandwidth throttling, and exorbitant prices from carriers. In the United States, unlimited data plans are a thing of the past, and as such any operating system worth its salt is going to have to be more careful about what, where, when, and how it sends and receives data.
To that end, Microsoft has instituted several features in Windows 8 that both users and developers can utilize to measure data usage and keep it in check.
Thanks to class drivers (which we'll discuss in just a minute), mobile broadband chips are treated as first-class devices in Windows 8—the same as wi-fi, ethernet, Bluetooth, and USB 3.0, among others—which means that broadband adapters can be turned on and off through the Windows GUI in the same way that wi-fi and Bluetooth now are, and there's also an Airplane Mode can turn all of it off in one swoop, just like on a smartphone (see above). As on phones, Windows will automatically prioritize wi-fi networks when both wi-fi and cellular are available.
This increased integration into Windows has many benefits: if your laptop or tablet has a SIM card installed, Windows can automatically detect which carrier it's associated with and download any available mobile broadband app from the Windows store, and carrier-unlocked laptops and tablets can choose between multiple cellular carriers if the hardware supports it. Windows also offers estimated data usage figures when connected to cellular networks, and when connected to a cellular network the OS will adjust its default behaviors to conserve bandwidth (for example, deferring the automatic downloading and installation of Windows updates until wi-fi is available).
Though it is off by default, these bandwidth conservation features can also be enabled for traditional wired and wireless network connections by right-clicking the name of the network you're connected to. While on a metered network, apps can now use new APIs to force network-aware Metro apps to use less data when possible (another example: using a low-bandwidth movie stream rather than a high bandwidth one). Network-aware Metro apps are required to use these APIs, and users can check how much bandwidth apps are using (both on metered and non-metered networks) in the new Task Manager.
Improvements to networking in Windows also extend to file copying, namely the SMB networked file sharing protocol. In Windows 8, the protocol can now shift dynamically between different network adapters during copy operations so that it always uses the fastest possible connection to transfer files. To demonstrate, I began copying a few gigabytes of data to a fileserver on my home network using a slow wireless G connection:
Then, without pausing the file copy operation or disabling my wireless card, I plugged the laptop into the network with a gigabit ethernet cable:
As you can see, as soon as Windows detected a faster network interface, it without complaint began copying the files using the faster connection. I then unplugged the laptop from the ethernet cable:
Again without issue, it switched back to the slower connection and continued copying the files. While this flexibility is impressive, it should be noted that it can only kick in for file transfers between two Windows 8 (or Windows Server 8) computers.
Drivers
Windows Vista broke a lot of things when it launched, and drivers was a big one—at least part of Vista’s caustic reputation was earned because third-party drivers made the platform so unstable. Since then, Microsoft has been committed to maintaining driver compatibility between Windows versions. During my testing, I found that the vast majority of drivers certified for Windows Vista and Windows 7 worked without issue in Windows 8, lending credence to Microsoft’s assertion that Windows 8 will be able to run on anything that could run Windows 7.
Windows 8’s main innovation is the sheer number of class drivers it introduces. For the un-indoctrinated, class drivers target defined specifications rather than specific hardware. Class drivers are the reason you don’t need to install specific software to run things like mice, keyboards, or USB 2.0 controllers.
Windows 8 adds new class drivers for things like USB 3.0 controllers, printers, motion sensors, mobile broadband cards, and a few others, all of which should be very useful on modern systems running Windows 8 or Windows on ARM. My personal experience extends to the USB 3.0 driver, which worked just fine for the oddball Fresco controller in my Intel desktop board, and the printer drivers, which worked well for a variety of local and networked printers I connected to from my various Windows 8 testbeds.
Microsoft also provides a new basic display driver in Windows 8. While the old generic display driver ran using the Aero Basic theme, the new driver appears to have basic support for Aero effects and transparencies. Among the systems that I tested, only a few had GPU-specific graphics drivers that installed from the DVD. While this may not be true of the RTM version of Windows 8, it looks like Microsoft is scaling back on the number of included graphics drivers to save space—you’d best check Windows Update or your manufacturer’s web site for updated graphics drivers, if they’re not included.
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hampuras - Monday, March 12, 2012 - link
Will the desktop UI be color managed? Can we now use it properly on a wide gamut display?moto47 - Monday, March 12, 2012 - link
I dont understand this constant love of Intel, and disrespect to AMD. Does Intel make better cpu's? Depends on what you consider "better". If by better, you mean it can perform faster on high-level programs that 98% of the worlds population will never use, yup its better. For the vast majority of people that use their computers to surf the internet, maybe use an office-type program, or something of that nature, no, AMD is just as good, especially when you factor in the MASSIVE price difference.This is an old analogy, but a good one. If the automobile industry was like the CPU industry: Intel is Ferrari, AMD is Honda...they both get you to work or the store, the Ferrari will get you there much faster, the Honda saved you enough money that you can actually do some shopping.
Or maybe it could just be said like this: Intel is for the rich folks, AMD is for the rest of us.
richough3 - Monday, March 12, 2012 - link
I still miss the close button, but I guess grabbing the top of the application and dragging it to the bottom is okay enough for closing it. But some of the full programs running full screen look more primative. Here's a Windows 8 Start button you can use.http://www.stardock.com/products/start8/
86waterpumper - Monday, March 12, 2012 - link
"This is an old analogy, but a good one. If the automobile industry was like the CPU industry: Intel is Ferrari, AMD is Honda..."No it's certainly not a good analogy. Why? If AMD was like Honda in the respect that it saved energy then it would be a winner in my book. However, not only are they slower than intel in alot of cases but they suck at efficiency.
This will continue to hurt amd especially in the laptop arena until they can get a handle on it. A perfect example of this is the total and complete lack of smaller laptops using the Llano chip. I hope they do figure it out and get back in the game. I like having amd as a option, their older designs are probably still a good option for someone who is really funds limited.
medi01 - Tuesday, March 13, 2012 - link
Typical Liano system eats 35-40 watts. (a bit more @ Anand tech, where they for some "misterious reason" use 1000W PSU with it).Try to beat that with anything Intel has to offer.
myhipsi - Monday, March 12, 2012 - link
There are many features like the new task manager, refresh and reset and storage spaces, faster boot times, and, of course, the under-the-hood changes that are great improvements/additions over Windows 7. However, with respect to desktop usage, I have one major problem with Windows 8, and it's a big one; the Metro UI.Based on feedback (and my own experience), it seems that the majority of desktop users dislike the Metro GUI, and my intuition tells me that in the future, most tablet/phone (touch based) users are really going to dislike being bounced from the Metro UI into the "desktop" style UI when performing certain tasks like changing settings, etc.
Instead of compromising the product to a one size fits all "solution", I think Microsoft should really consider marketing two different versions of Windows 8: "Windows 8 Touch" and "Windows 8 Desktop", for example. Or, simply allow the user to choose which version they want upon installation.
The idea that I will be forced into the Metro UI with Windows 8 is a deal breaker for me. Lets hope that MS gets enough negative feedback on this that they reconsider and allow people the choice.
Silma - Monday, March 12, 2012 - link
A uselful complement to this otherwise great preview would be to have feedback on professional use in a few different jobs:- power user office worker ( working mostly with Office Suite + sap/salesforce/whatever)
- power user media / content producer (working mostly with Adobe Creative Suite)
- power developer (working mostly with Visual Studio + sql )
- probably using 1 or 2 monitors.
and see in what ways Windows 8 is better or worse than Windows 7.
Perhaps you could ask for your reader's input in those scenarii. Personally I won't have time to setup a fully working computer with all additional software so this would be of great interest to me.
Burticus - Monday, March 12, 2012 - link
MS better grow a clue... I don't want a tablet OS on my PC. There better be a way to permanently turn off all that stupid big icon crap and give me a regular desktop. If not... looks like I'll be on 7 until the next thing comes along. Hey I rode XP for 10 years and skipped Vista entirely.I installed it on a VM and played with it. So far, meh. If I had a tablet it might be more interesting.
Geofram - Monday, March 12, 2012 - link
I've got one real question about Metro that doesn't seem to ever get specifically addressed.How does it do at multi-tasking?
The biggest problem I see with it, is that the full-screen everything approach is not a good one when you're running multiple applications. In fact, I don't even know how you could do that using it. I haven't tried it extensively, but if you're looking for things to review, that's my biggest question.
I don't care about launching a single app. I care about how it will fare when I have a game running on one monitor, a web page on another, and music playing in the background. How do you switch between them easily in Metro? How do you start them and put them on the correct monitors? I don't see any discussion about that, and yet, it's the core issue to me.
Andrew.a.cunningham - Monday, March 12, 2012 - link
All Metro apps run on one monitor, even if you have a multiple-monitor setup. Metro Snap provides the only multitasking available in Metro. App switching is handled similarly to Android and iOS, and is done via the app drawer on the left side of the screen. Switching the screen Metro appears on can be done in a few ways, and is covered in the review.Multitasking on the desktop is the same as it was in Windows 7. In a multi-monitor setup, the desktop will always be running on the second (or third, or whatever) monitor, and you can leave desktop applications running on it at the same time as you use Metro apps (thus allowing you to keep a web page open on your second monitor while you play a game either on the desktop and in Metro). Music can play in the background in both desktop and Metro apps. I think all of this was covered in the review, most of it on the first three pages.
As with most things, what you think about how all of this works is largely dictated by what you think about Metro.