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what technologys are used?

 

Image representing Facebook as depicted in Cru...

Image via CrunchBase

 

 

 

 

 

The Tesco Clubcard logo.

The Tesco Clubcard logo. (Photo credit: Wikipedia)

 

 

The Tesco Clubcard logo. (Photo credit: Wikipedia)

 

For Facebook they mostly use PHP compiled into C++

 

PHP is a server-side scripting language designed for web development but also used as a general-purpose programming language.

 

C++ (pronounced “see plus plus”) is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language.

 

  • Facebook uses Linux, but has optimized it for its own purposes (especially in terms of network throughput).
  • Facebook uses MySQL, but primarily as a key-value persistent storage, moving joins and logic onto the web servers since optimizations are easier to perform there (on the “other side” of the Memcached layer).

 

Google Chrome includes V8, a JavaScript engine which is the foundation of Chrome’s efficiency improvements. Developers used Apple’s WebKit and Mozilla’s Firefox.

 

Tesco uses Clubcard to “reward” their customers.

 

http://www.tesco.com/clubcard/clubcard/About – Clubcard – Tesco.comwhat.asp

 

websites such as Facebook, twitter and Skype are used as social sites. On Skype you can video call

 

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