After spending several days with the Developer Preview of Windows 8
 on a PC, it's clear that Microsoft's new operating system -- which 
offers two separate interfaces, Metro and Desktop -- is a transitional 
one between traditional computers and mobile devices. All of Microsoft's
 energy and creativity has been devoted to the new Metro interface; 
there's very little new of note for the old-fashioned Desktop.
As I tested Windows 8, I found myself wanting to use it on a tablet 
instead of my PC, because the big-tiled Metro was so much more visually 
appealing than the traditional Desktop, with a more intriguing feature 
set. After using Windows 8 for some time, it's clear that Metro is the 
future of Windows, and the Desktop the past.
Windows 8's Metro interface is more visually appealing than the traditional Desktop.
An interesting note: You usually expect developer previews and betas 
to suffer from performance woes because code hasn't yet been optimized, 
and bugs may slow things down. However, the Windows 8 Developer Preview 
is surprisingly fast, even on my aging test machine. I installed it on a
 dual-boot Dell Inspiron E1505 with 1GB of RAM and a single-core Intel 
T2400 1.83GHz CPU, which is near the very bottom of the hardware 
requirements for Windows 8. Yet I found it to be extremely fast and 
responsive. In fact, it feels zippier than Windows 7 running on the same machine.
Clearly, Microsoft has done a great deal of work on optimizing 
Windows 8. There's good reason for that; if it's going to work on a 
tablet, it needs to be fine-tuned.
Getting used to Metro
When I first started using Windows 8, I was surprised to see that the
 Desktop was no longer the command central for the operating system. You
 boot into Metro; Desktop has been relegated to just another app 
accessible from the Metro screen.
Metro has been clearly designed for tablets. Like Windows Phone 7, 
Metro's main interface is made up of large colorful tiles, each of which
 represents a different app and each of which can exhibit changing 
information, such as the latest news, social networking updates, weather
 and stocks.
In addition, Metro has a horizontal design, with tiles stretching off
 the right edge of the screen. On a tablet, you'll swipe to uncover new 
tiles; on a PC, you're relegated to dragging the bar at the bottom of 
the screen or clicking navigational arrows. Even after several days of 
use, I never got used to dragging or clicking to reveal the extra tiles;
 I longed for a touch screen so I could swipe instead.
Metro is customizable. You can drag tiles to new locations or 
customize select parts of the interface via its own Control Panel. You 
can change the picture on your Lock Screen and your user tile; change 
user account information; turn wireless on and off; turn on airplane 
mode and change settings for privacy, search and Windows Update. You can
 also change your home network settings via HomeGroup (introduced in 
Windows 7) and your sync settings.
In my initial test of Windows 8, I didn't use Metro that much. But 
over time I found myself migrating more to Metro when I was actively 
looking for information. The constantly changing information stream, 
including news stories, RSS feeds and updates from friends and 
acquaintances on social networking sites, is quite useful and almost 
hypnotizing. In Metro, instead of having to seek out information, 
information comes to you.
Metro apps
Metro apps run full screen like their tablet and Windows Phone 7 
counterparts. On a desktop, they take getting used to, because there's 
no Windows menu -- although after a few days, I became more comfortable 
using them. You can't change their size or shrink them, though. 
Switching between them on a PC is kludgy and requires the old Windows 
standby, Alt-Tab. I eventually discovered another way to do it: Hold the
 mouse pointer at the far left of the screen until a small icon for the 
previous app appears and then click to switch to it. All in all, though,
 Alt-Tab is easier.
Unlike earlier versions of Windows, which had few consumer-level apps
 built in, Windows 8 offers a plethora. The Metro screen is filled with 
Microsoft-written games, social networking tools and other apps. They're
 designed for a tablet or smartphone, although they're usable on a PC as well.
The basic News, Weather and Stock apps are straightforward and simple
 to use. The News app, for example, offers a list of dozens of RSS news 
feeds organized by topic, including Business, Design, Entertainment, 
Lifestyle, Music, Technology and News. Click the ones you want, and 
they're added to your feed. You can also directly type in the URL of a 
feed you want to add.
 
The News app offers a list of dozens of RSS news feeds organized by topic. Once
 you set your apps to grab the data, you'll be able to see constantly 
changing information in the tiles themselves -- mostly, summaries or 
headlines -- without having to open the apps. If you see something that 
interests you, click the tile to be sent straight to that app -- but not
 necessarily to the specific information you're seeking. For example, 
when I clicked a headline about the current Republican nomination race 
on a news tile, I was sent to a page with all the news headlines and had
 to look for the story. On one occasion, the headline that appeared in 
the tile wasn't even immediately visible; I had to scroll to find it.
Installing the Windows 8 Developer Preview
To download the Windows 8 Developer Preview, go here: http://msdn.microsoft.com/en-us/windows/apps/br229516
To install it on a PC, you download an .ISO file, burn it to DVD, and
 then install over a PC with Windows XP, Windows Vista or Windows 7. 
There are two versions of the 64-bit Windows 8 Developer Preview: one 
with developer tools, and one without the tools. The 32-bit version of 
the developer preview doesn't include developer tools. The 64-bit 
version with developer tools can only be installed as a clean install --
 accounts, files and settings on the machine on which you're installing 
will be deleted.
With the 32-bit and 64-bit versions without developer tools, you'll 
be able to retain accounts, files and settings if installed over Windows
 7 or Windows Vista. You'll be able to retain only accounts and files if
 you install over Windows XP. As with all previews and betas, the usual 
caveats apply about not installing it on a production machine.
Installation of the preview is straightforward and requires multiple 
reboots. On my machine, total installation time (aside from downloading 
and burning a DVD) took 50 minutes, but it may go faster on faster 
machines.
 I tried a few other apps as well. The Tweet@rama app is a simple, 
straightforward front-end to Twitter, and lets you create and read 
tweets. It's not nearly as useful as a full-fledged Twitter client such 
as TweetDeck, but for the basics, it's fine. The Socialite app performs 
similar functions for Facebook. Other apps include a location-based app 
called NearMe, an app for setting alarms and a paint app called 
PaintPlay.
One problem with these apps, though, is that there is no standard way
 to interact with them on a PC. For example, in the News app, 
right-clicking brings up a context-sensitive menu -- if you're reading a
 news article you'll get navigation buttons, and if you're on a summary 
page, you'll get options for adding, refreshing and removing feeds. But 
if you're in the Zero Gravity game app, right-clicking does nothing. 
More standardization would be welcome.
Worse yet, there's no clear way to close down many of these apps. For
 example, Zero Gravity, which features intensely annoying music, doesn't
 have a menu or any way to shut it down -- so when you switch out of the
 game to the main Metro interface, the annoying music still plays in the
 background. Switch to the Desktop or run another Metro app, though, and
 the music thankfully goes away. In fact, I found that my workaround for
 closing most Metro apps was switch to the Desktop; after a few minutes,
 the Metro app I was running typically shut down.
The familiar Windows Desktop
All that being said, when it came to doing actual work such as using 
MIcrosoft Office, I ended up on the Desktop for the simple reason that 
that's where the serious applications were.
After you click the Desktop tile on the Metro screen, you'll feel at 
first as if you never left Windows 7 behind -- the interface looks and 
works almost identically to Windows 7. You'll see the familiar taskbar 
across the bottom with taskbar thumbnails, the Notification Panel on the
 right, the icons on the screen and so on.
 
The search panel slides into place on the right side of the Desktop screen.There
 are some changes, though. Most noticeable is that the Start button has 
been thoroughly revamped. Clicking it sends you back to the main Windows
 Metro screen rather than popping up the familiar Start menu with a 
search box, folder navigation, a link to the Control Panel and so on. In
 the Metro interface, however, the Start button functions as a task 
switcher between the interface and any running apps.
If you want to find your various Windows options, you need to move 
your mouse pointer to the leftmost bottom corner of the Desktop; a menu 
pops up that gives you access to Settings, Devices, Share and Search. 
When you click one of these options, a panel slides into place on the 
right side of the screen to let you perform the task you've asked it to 
do. Select Search, for example, and the panel shows a search box, along 
with a variety of locations where you can search.
The Share button lets you share a screenshot using the Socialite 
social networking app. The Devices button, designed for printing, 
playing games and sending content to others, doesn't work in this 
version of Windows 8. And the Settings button lets you change only the 
most basic functions of the Desktop.
Metro's Control Panel also leads you to additional settings for the Desktop.One
 would expect to find the old Windows standby, the Control Panel, when 
you click Settings, but no -- instead, you'll have to head back to Metro
 and click the Control Panel tile, scroll to the bottom of the Metro 
Control Panel and click "More settings," which takes you to the old 
Control Panel. If the awkward, time-consuming navigation to get to the 
Control Panel isn't an indication of how little importance Microsoft 
attaches to the Desktop, I don't know what is.
There are a few other tweaks. For example, Windows Explorer now has a
 ribbon interface, a great improvement over its previous version.
Bridging different interfaces
Even after using Windows 8 for some time, I never got used to the 
dramatic differences between the Metro and Desktop interfaces. It never 
quite seemed as if it was a single operating system -- instead, it felt 
like two different OSes bolted together.
Making matters worse is that Metro apps don't show up on the Windows 
desktop. And although desktop apps appear in Metro, they're so 
well-hidden you may never realize they're there: With the exception of 
Internet Explorer, they're stuck all the way on the far right of the 
tiles so you have to scroll to get to them. And even when you run 
Desktop apps from Metro, they can't take advantage of Metro's ability to
 exhibit information via tiles. One hopes that will change in future 
versions of Windows 8.
Microsoft has made some small attempts to bridge the gaps between the
 interfaces. Metro and the Desktop share some basic navigation -- for 
example, in both of them, when you move your mouse to the bottom left of
 the screen by the Start button, you get the previously described 
options menu, along with the date and time, and notifications such as 
whether you're connected to a network and the power state of your 
computer.
 
When you mouse to the bottom left of the screen, new options appear, along with the time and notifications.This
 is a good way to try and create commonalities between two very 
different interfaces, but it doesn't always succeed. In the Metro 
interface, the options are context sensitive, so when you're in an app 
and click Settings, for example, the settings will relate to that app. 
However, if you click Settings on the Desktop the results always pertain
 to the Desktop, whether or not you're currently using an app.
Windows 8 and the cloud
Windows 8 is clearly being designed with the cloud in mind as well. 
After installation, you're asked to enter a Windows Live ID, or to sign 
up for one if you don't already have one. Your Windows 8 machine is then
 linked to Microsoft's cloud-based Live services, including Windows Live
 SkyDrive, which is expected to become the central location for your 
files.
On this Developer Preview running on a PC, however, only a few cloud 
services were available, something that will likely change in the 
future. In the Metro interface, when I clicked Control Panel, I found 
Sync PC Settings, which are designed for a cloud-based world in which 
people use multiple devices, including Windows-based PCs, tablets and 
smartphones.
By default, Sync is turned on, which means that your global settings 
-- such as app settings, screen lock picture and themes, browser 
settings, taskbar and Windows Explorer settings, and some passwords -- 
are automatically synced among all your devices. You can decide whether 
to sync devices that use a metered data plan.
Surprisingly, nowhere could I find settings for automatically syncing actual data and files via Microsoft's cloud http://msdn.microsoft.com/en-us/windows/apps/br229516 service Windows Live SkyDrive. Possibly that will appear in a future Windows 8 version.
Two ways to use Internet Explorer
Windows 8 Developer Preview comes with not one, but two versions of 
Internet Explorer 10, one for the Metro interface and the other for 
Desktop. The underlying engine, which supports CSS3, HTML5 and Flash, is
 the same for both, but the surrounding interface is dramatically 
different.
Windows 8 has two versions of Internet Explorer 10. The version shown here is the Metro version, designed for tablets.In
 the Metro version, you browse full screen, with no controls immediately
 visible for typing in a URL, adding bookmarks, refreshing a Web page or
 switching between tabs. Right-click anywhere on the page, though, and 
those controls appear at the top and bottom of the screen. The top of 
the screen shows clickable thumbnails of all open tabs. You click on the
 X to close the tab and click the + to open a new tab, at which point a 
screen appears that shows pages that you frequently visit, as well as 
sites that you've pinned so that they're always visible whenever you 
open a new tab. These pinned sites also appear on the main Metro 
interface.
The Address Bar appears at the bottom of the screen when you 
right-click; it lets see your current URL and typing in a different one,
 go forward or back, refresh the current page, pin the current page, 
findtext on the current page and switch to the Desktop version of IE.
The Desktop version of IE 10 looks and works much like Internet Explorer 9, with the usual menu-less, tabbed interface.
 
The Desktop version of Internet Explorer 10 looks and works like Internet Explorer 9.Because
 the underlying engine is the same, if you switch from Metro to the 
Desktop version, the Desktop version will have all of the currently open
 tabs, current URL, and so on.
The bottom line
Windows 8 on a desktop feels very much like a transitional operating 
system, attempting to bridge traditional PC-based computing and mobile 
computing done on tablets and smartphones. Even after several days of 
use, the experience was slightly awkward, and I never got over the 
feeling that I was using two separate operating systems -- Metro and the
 Desktop -- joined together by a slender thread.
I expect that tablet and smartphone users will rarely make their way 
to the Desktop, especially with the recent announcement that Microsoft 
will be developing a Metro version of Office.
In fact, based on this early Developer Preview, there may not be much
 for enterprises in Windows 8. Upgrading from Windows 7 or Vista to 
Windows 8 would likely be a problem for businesses because the Metro 
interface is so different from earlier Windows versions.
Given the amount of resources that Microsoft has spent on Metro, and 
the few it appears to have expended on the Desktop, I wouldn't be 
surprised if the Desktop will eventually fade away in future Windows 
versions. The main screen you boot into in Windows 8, Metro, calls out 
for a touch interface -- and Microsoft is clearly betting that 
touch-screen PCs will eventually become standard.
If that happens, and when there are Metro versions of applications 
such as Office, the Desktop will become even less important than it is 
now in Windows 8. Windows 7 may well be the last time that Windows' 
longtime primary interface, the Desktop, has center stage.
Preston Gralla is a contributing editor for Computerworld.com and
 the author of more than 35 books, including How the Internet Works 
(Que, 2006).

For more enterprise computing news, visit Computerworld. Story copyright © 2011 Computerworld Inc. All rights reserved.
By Preston Gralla, Computerworld
Source: PCWorld







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