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ARM adopts 64-bit architecture
ARM has disclosed technical details about its new v8 architecture - the first to include a 64-bit instruction set - at ARM TechCon 2011 in Santa Clara, California.The next-gen architecture will expand the reach of ARM processors in the consumer and enterprise markets where extended virtual addressing and 64-bit data processing are required.According to ARM CTO Mike Muller, ARMv8 architecture consists of two main execution states: AArch64 and AArch32. 

The AArch64 execution state int...
ARM,Processor,64 bit,Architecture,v8,Nvidia 2011-10-28 10:31:52
SpaceX's Starlink satellites were endangering other satellites
On 3 Dec 2021, The Permanent Mission of China sent a note to UN General Assembly complaining two dangerous approaches to China's Shenzhou space station from SpaceX's Starlink satellites during 2021. These two dangerous approaches were happening in July and October respectively and they almost caused collisions of the Starlink satellites and the Shenzhou space station because the two SpaceX satellites manoeuvred continuously to the orbit of China's space station. These dangerous approaches forced...
SHENZHOU SPACE STATION,SPACEX STARLINK,CHINA SPACE STATION 2021-12-27 10:56:51
Google feels the threat from Samsung
In response to Apple's iOS system, Google and Samsung stood on the same side. But with the increase of market share of Samsung Android devices, Google begins to feel the threat from Samsung.On MWC in Barcelona, a group of business executives said Google increasingly worried about Samsung after a private party. Because its equipment has occupied 40% of the Android devices, which could erode the Google advertising service. Google hopes manufacturers such as HTC and HP can challenge Samsung.It is r...
WireGuard VPN Troubleshooting
When you are working as a network/cluster admin for you team to config the WireGuard VPN for other members, you may meet some of the problems below and these are the solution you can try to fix them. ----------------------------------------------------------------------------------------------------------- Problem [1]: The WireGuard handshake request send from the client can be received from the server but the server's response was blocked at some where so the client can not receive serv...
WIREGUARD,VPN,TROUBLESHOOTING 2021-12-14 09:17:46
Cracking Siri
On October 14, 2011, Apple introduced the new iPhone 4S. One of its major new features was Siri, a personal assistant application. Siri uses a natural language processing technology to interact with the user.Interestingly, Apple explained that Siri works by sending data to a remote server (that’s probably why Siri only works over 3G or WiFi). As soon as we could put our hands on the new iPhone 4S, we decided to have a sneak peek at how it really works.Today, we managed to crack ...
Siri,Cracking,Defect,Speech to text,Record,AI 2011-11-15 08:38:23
Advantages and disadvantages of GoLang
GoLang is a strong typed language which means it is less flexible than interpreted languages by nature. But Go provides Any type(interface) and Reflect mechanism which make the language very close to interpreted languages on flexibility. More and more people start to learn GoLang. This post is mainly for listing down some of the advantages and disadvantages of GoLang. Advantages Performance(Machine code) GoLang is a compilation language which can be compiled to machine code and the compiled bina...
GENERICS,GOROUTINE,GOLANG,DISADVANTAGE,ADVANTAGE 2018-11-10 20:46:45
Use DTrace to diagnose gdb issues
A few days ago, I installed the newest 64-bit gdb program (version 7.7.1) on Solaris 10 (X86_64 platform) to debug programs. After playing with the gdb a day, I found 2 issues about gdb:(1) The "set follow-fork-mode child" command doesn't take effect. By default, after the parent process forks the child process, the gdb will track the parent process, so this command can make gdb begin to follow the child process. But this command works OK on Linux.(2) The gdb can't parse the 32-bit application c...
How I Learned to Program
Programming is, without a doubt, the most mentally rewarding thing I've ever done. Programming taught me that life should be fun, filled with creativity, and lived to the fullest. Programming taught me that anything is possible; I can do anything I want using only my mind. Programming also taught me that learning is fun. It showed me that the more you know, the more power you have. Programming showed me that a life filled with learning is a life worth living. Programming revealed to me wh...
Programming,Tips,Write,Practice,Interest 2012-02-04 21:37:12
Emotion analysis on Twitter for past 5 years
Emotion analysis is a new research direction in computer science in these years, what it does is expressing emotions and feelings of people with data. The means to do emotion analysis include natural language processing, statistical and signal processing. The platforms which are most suitable for emotion analysis are also microblogging like social networking platform, Twitter is one good example.Computing Laboratory of the University of Vermont project Hedonometer conducted emotion analysis for...
Emotion analysisTwitter,Hedonometer,happiness 2013-05-08 06:17:25
Why Firefox Isn't Doomed
This has been a rough year for Mozilla and its Firefox team. Once the darling of the Web and the champion of the oppressed against Microsoft and Internet Explorer, Firefox is facing stiff competition from its primary benefactor and backlash from users. Chrome also seems to be the preferred browser of Web developers. Naturally, this means speculation about the future of Firefox. Has Firefox had better years? Absolutely. Does this mean that Firefox is "doomed"? Not so fast. Google Will Pro...
Firefox,Market share,Competition,Google 2011-12-15 07:39:27
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