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  Samsung will release 10.1 inch Windows RT Tablet

Today, Samsung not only announced Galaxy Note â…¡, first Windows Phone 8 device Ativ S and camera EK-GC100 Galaxy equipped with Android 4.1 system, but also announced a Windows RT Tablet PC Samsung Ativ Tab.The 10.1-inch Samsung Ativ Tab has a resolution of 1366 x 768,1.5 GHz dual-core processor, 2G RAM, a 32/64G storage space, support for microSD memory expansion. Other configurations as well as the standard Wi-Fi and Bluetooth 4.0, support for USB 2.0, uHDMI and NFC.In addition, the table...

   Samsung,Windows 8,Tablet     2012-08-29 19:36:31

  What does super.clone() do?

Object class has a protected clone() method declared to make it possible for all classes make a clone of itself when needed. The clone() is often used when a new instance of the class is needed while at the same time to maintain the same state as the original object. Any class which wants to have clone enabled has to implement the marker interface Cloneable. If a class which implements Cloneable doesn't override the Object.clone() method, the Object.clone() method will be called to just make a b...

   Cloneable,super.clone(),clone,Java     2015-01-07 05:25:52

  String intern in Java

In Java, == is used to compare whether two objects have the same memory location, equals() is usually used to compare whether two objects have the same time and the same state.  When comparing two strings, normally we just want to know whether they have same content, so we can choose equals(). But since String comparison is so frequently needed, Java has worked on the String class to make == workable when comparing two String literals. The String class maintains a pool of emp...

   JAVA,STRING     2016-04-10 03:35:25

  How does JGSS read Windows native TGT credential?

MS LSA is a protected subsystem that authenticates and logs users onto the local system. The user credential is stored at the native credential cache of LSA on Windows. This kind of credential is often used to authenticate the user to the server, one of the authentication methods is Kerberos. JGSS has provided a native interface which can read the native TGT credential and use it to get the TGS of a service. But how does JGSS read the native TGT credential? Here is a sample code for reading nati...

   KERBEROS,JGSS,MS LSA,NATIVE CREDENTIAL,TGT,SESSION KEY TYPE     2015-03-25 03:42:32

  Statistics on StackExchange

StackExchange is the most popular and professional IT Q&A site, Under StackExchange, there is StackOverflow and other sub sites. Many of us may wonder how this mega site is maintained and what its performance is. A performance page has been released by StackExchange recently. Below is some statistic about this mega site. 560 million page views per month, i.e around 1.9 million PVs per day. For such as big site, it has only 9 web servers and 4 SQL servers(while two of them are in backup mode...

   Stackoverflow,statistic     2015-01-05 02:47:01

  What are some lesser known but useful Unix commands?

A few that come to mind, some less known, some more: xargs or parallel: run things in parallel, with lots of options sed and awk: more well-known but still super useful for processing text files, and faster than Python or Ruby m4: simple macro processor screen: powerful terminal multiplexing and session persistence yes: print a string a lot cal: nice calendar env: run a command (useful in scripts) look: find English words (or lines in a file) beginning with a string cut and paste and join: data...

   Linux,Unix,Command,Less used     2011-12-27 09:27:49

  In praise of impractical programming

Although it’s become a cultural mainstay now, I still remember when I first saw that thick book — the one with the wizard on the cover — about a school for magic where wonders are easily conjured by those who know the proper spells. Of course, I’m talking about the Structure and Interpretation of Computer Programs. There was that other book with the spells, but the “Wizard Book” sincerely claimed to teach magic. For the past few years, I’ve been ...

   Impractical Programming,Structure,Scheme,Practical     2011-12-05 12:28:58

  Before Python

This morning I had a chat with the students at Google's CAPE program. Since I wrote up what I wanted to say I figured I might as well blog it here. Warning: this is pretty unedited (or else it would never be published :-). I'm posting it in my "personal" blog instead of the "Python history" blog because it mostly touches on my career before Python. Here goes.Have you ever written a computer program? Using which language?HTMLJavascriptJavaPythonC++COther - which?[It turned out the students ha...

   Python,History,Programming language,B     2012-01-18 08:08:53

  HP's Apotheker recounts TouchPad disaster in post mortem

Summary: “The tablet effect is real and sales of the TouchPad are not meeting our expectations,” says HP’s CEO. The TouchPad was quickly becoming a money pit. HP CEO Leo Apotheker wasn’t shy about outlining the company’s challenges. He noted that the “tablet effect is real” and dinged HP’s PC business. In addition, the TouchPad failure was about to become a money pit. That reality led HP to move...

   HP,webOs,Death,Palm,Touchpad,Diaster     2011-08-19 07:35:17

  Productivity is just work

The other day, I wrote a post declaring that I will no longer try to increase my productivity. This doesn't mean I won't read productivity blogs, and tweak things, and manage my "system". It means I no longer think about any of that stuff as having anything to do with productivity. Productivity is what happens when you're doing work. Enhancing your productivity is what happens when you do a lot of work, for long enough to get better at it. Look, throw all your stuff in Dropbox, live yo...

   Productivity,Work,Enhancement     2012-01-05 08:18:36

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