1. http://windowssecrets.com/2009/10/22/01-The-pros-and-cons-of-switching-to-Windows-7
2. Operating System: is software, consisting of programs and data, that runs on computers, manages computer hardware resources, and provides common services for execution of various application software. http://en.wikipedia.org/wiki/Operating_system
3. PC Operating Systems
3.1. Ubuntu
3.1.1. Pros:
3.1.1.1. 1
3.1.1.2. 2
3.1.2. Cons:
3.1.2.1. 1
3.1.2.2. 2
3.1.3. Ubuntu is a computer operating system based on the Debian GNU/Linux distribution and is distributed as free and open source software with additional proprietary software available.
3.2. Windows 7
3.2.1. Pros:
3.2.1.1. Win7's security is stronger and less intrusive :1
3.2.1.2. 2: Search works — finally!
3.2.2. Cons:
3.2.2.1. Built-In Support for Egregious Hardware-Based DRM :2
3.2.2.2. 1: The Upgrade Is Expensive
3.3. Mac OS X
3.3.1. Pros:
3.3.1.1. 1
3.3.1.2. 2
3.3.2. Cons:
3.3.2.1. 1
3.3.2.2. 2
4. Sources 2011
4.1. http://gogeometry.com/software/ubuntu_linux_operating_system_mind_map_news.html
4.2. http://www.wired.com/gadgetlab/2009/08/7-reasons-to-avoid-windows-7/
5. Open Source:The term open source describes practices in production and development that promote access to the end product's source materials. http://en.wikipedia.org/wiki/Open_source
6. Smartphone Operating Systems
6.1. iOS
6.1.1. Cons:
6.1.1.1. 1:No Flash in the browser
6.1.1.2. 2: No option to choose different hardware (or Carrier in US)
6.1.2. Pros:
6.1.2.1. 1:Apps are generally off a higher quality than other platforms
6.1.2.2. 2: Updates always arrive when the are released
6.2. Android
6.2.1. Pros:
6.2.1.1. 1:Open market that is growing faster than Apple's http://www.bukisa.com/articles/316136_ios-and-android-5-pros-and-cons-of-each#ixzz1JSqUBPXY
6.2.1.2. 2:Good social networking integration built into the OS http://www.bukisa.com/articles/316136_ios-and-android-5-pros-and-cons-of-each#ixzz1JSrtDCXB
6.2.2. Cons:
6.2.2.1. 1:OS version fragmentation http://www.bukisa.com/articles/316136_ios-and-android-5-pros-and-cons-of-each
6.2.2.2. 2:Virtually non-existent desktop syncing http://www.bukisa.com/articles/316136_ios-and-android-5-pros-and-cons-of-each
6.3. RIM
6.3.1. Pros:
6.3.1.1. 1:Operating system: The BlackBerry OS is one of the strongest platforms on the market. In my opinion, it has the best contact management, calendaring, and e-mail client of all the devices. It is built for the business user and has extras for the consumer. http://www.straight.com/article-337702/vancouver/blackberry-iphone-or-android-pros-and-cons-mobile-devices-business
6.3.1.2. 2:Research In Motion, like Apple, produces great quality hardware that is also aesthetically pleasing. RIM also offers freedom of choice, unlike Apple; you can purchase many different BlackBerrys in different form factors.
6.3.2. Cons:
6.3.2.1. 1:Server software: To achieve full integration with corporate messaging systems, one must install BlackBerry Enterprise Server or BlackBerry Express. This adds another layer of complexity, management, and cost for a business. Recently, RIM released BESX, a trimmed down version of BES which eliminates the need to pay for the server licensing. It also can work with a BlackBerry Internet Service plan from carriers, eliminating the need for users to pay for expensive BES plans.
6.3.2.2. 2:Applications: RIM followed Apple by releasing its own application store, called BlackBerry App World. The lack of applications and cumbersome interface lead to slow adoption. The latest OS, version 6.0, comes with App World 2.0 integrated within the operating system; it will be interesting to see if this makes a difference. On average, BlackBerry applications are also far more expensive compared to the iPhone and Android.
6.4. Symbian
6.4.1. Pros:
6.4.1.1. 1:very well documented APIs
6.4.1.2. 2:good support for popular IDEs on Linux, Mac OS and Windows
6.4.2. Cons:
6.4.2.1. 1:no choice of user environments
6.4.2.2. 2:proprietary http://wiki.osgeo.org/wiki/Mobile_Solutions#Symbian_OS