ORIGAMI DESIGNING TOOL

Origami is a free tool for designing modern user interfaces.
It was created to design and build many of the products at Facebook, including Instagram, Paper, Messenger, Slingshot, Rooms and Groups.
Origami is built on Quartz Composer, a graphics visualization application by Apple.
Origami Studio will be launched for free by FACEBOOK  for everyone to try their hands on.



download origami : http://facebook.github.io/origami/
explore examples: http://facebook.github.io/origami/examples/
tutorials : http://facebook.github.io/origami/tutorials/

iOS Operating System

iOS(originally iphone iOS) is a mobile operating system that was created and developed by Apple Inc. 
It is the second most popular mobile operating system by sales after Andriod.

It has been written in C,C++,Objective-C and Swift languages.

Its user interface is based on direct manipulation and multi-touch gestures.

The operating system was divulge in the year 2007 with iphone.

Siri

Siri is a personal assistant and knowledge navigator software which works as an application.

The service is directed by the user's spoken commands, can do a variety of different tasks,such as call or text someone,open an app,search on the web,look sports info,find directions or locations, and general knowledge questions.