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May 27, 2012

Windows 8 makes it easier for parents to track kids‘ internet usage


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Microsoft's Family Safety tool helps parents limit site usage

 Microsoft's Windows 8 will include a brand new suite of tools to help parents keep track of what their kids are doing on the internet.
The Windows 8 Family Safety toolset will send weekly usage reports about the sites that have been visited, and will allow parents to block specific websites and apps, set time limits for usage, lock search engines into strict SafeSearch, and track Windows Store purchases.
All of this can be done through a parent's administrator account, so the kids don't have access to the information and tools.
The reports aren't limited to a single device, either, instead collecting information on websites visited, time spent on each website, search histories, and apps and games usage from every device a child uses his or her Windows account on.The administrator is meant to set up separate accounts for each child so they can keep track of exactly who is doing what.

Microsoft has some parenting advice

"Computers give children access to many positive experiences; however, parents face challenges in monitoring what their children see online, the people they meet, and the information they share," said Phil Sohn, Microsoft's senior program manager for family safety, in a blog post.
"Parenting techniques like this are important, but they may be difficult to employ if your household has multiple PCs or if your kids use laptops and tablets. And glancing over a teenager's shoulder can be awkward for both parents and kids," he continued.
Sohn said the purpose of using individual Windows accounts for each family member isn't solely to monitor what they're doing online.
"It is also a great way for each family member to maintain their own unique online identity while still sharing a single PC," he said.
He believes that the simplicity of the new Windows 8 Family Safety tools will cause more parents to readily use them.

May 21, 2012

No Java Required: Write Android Apps in C#


No Java Required: Write Android Apps in C#

XobotOS is a Xamarin-developed project that translated millions of lines of Java to C#.
Java is the underlying code for the Android OS. But one company has changed all that, ripping out most of the Java and replacing it with C#.
That means .NET developers can code in a familiar language and produce apps that leverage C#'s advantages, including speed increases.
It started as a skunkworks project for Xamarin. Xamarin's claim to fame is Mono, an open-source framework allowing Android and iOS apps to be built using C# running on top of Java. Now, with what the company calls the XobotOS Research Project, the Java layer has been removed via a "machine translation of Android from Java to C#," according to ablog post from Xamarin CTO Miguel de Icaza.

Building XobotOS involved converting more than a million lines of Java code into C#, de Icaza wrote. A tool called Sharpen was used to help in the translation, and the project resulted in an improved version of Sharpen, de Icaza says. Most of Androids layouts and controls, de Icaza says, have been converted, and to demonstrate, the post includes a Java-free screenshot of  XobotOS running on a Linux desktop.
In terms of speed improvements, the blog includes a bar chart of a benchmark from a simple binary tree implementation in Java and C#. The chart shows a huge increase in performance between the two languages.
Xamarin has made XobotOS available on github. de Icaza says that XobotOS won't be "a focus" going forward, as the company wants to put its efforts toward its core products, Mono for Android and MonoTouch.
One other possible benefit of using XobotOS for Android development is that it would eliminate the kind of potential legal entanglements that Google finds itself in with Oracle, the patent-holder for Java. Replacing Java with C# would, of course, inoculate developers from the clutches of Oracle's lawyers.

About the Author
 
Keith Ward is the editor in chief of Visual Studio Magazine. 

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