1. PC Operating Systems
1.1. Ubuntu
1.1.1. Pros:
1.1.1.1. Free
1.1.1.2. Easy to try before installing
1.1.2. Cons:
1.1.2.1. Learning Curve
1.1.2.2. Not all software works on Linux
1.1.3. 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. It is named after the Southern African ethical principle Ubuntu ("humanity towards others"). Ubuntu provides an up-to-date, stable operating system for the average user, with a strong focus on usability and ease of installation. Web statistics suggest that Ubuntu's share of Linux desktop usage is about 50%, and upward trending usage as a web server. Ubuntu is sponsored by the UK-based company Canonical Ltd.
1.1.4. http://gogeometry.com/software/ubuntu_linux_operating_system_mind_map_news.html
1.2. Windows 7
1.2.1. Pros:
1.2.1.1. Familiar interface
1.2.1.2. Most software designed to work on Windows
1.2.2. Cons:
1.2.2.1. Likeliest target for malware
1.2.2.2. Expensive to upgrade to
1.3. Mac OS X
1.3.1. Pros:
1.3.1.1. Reliable
1.3.1.2. Malware not likely to target Mac
1.3.2. Cons:
1.3.2.1. Cannot be upgraded/customized
1.3.2.2. Doesn't play PC games
2. Sources 2011 http://bit.ly/drr59i http://bit.ly/anb8Iy http://anse.rs/ev07Fp http://bit.ly/leCA7 http://bit.ly/fDxVkk http://bit.ly/ePWRcv http://bit.ly/c6c6fZ http://bit.ly/hRMJXq http://bit.ly/fToCsb
3. Operating System Definition: Performs basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers.
4. Smartphone Operating Systems
4.1. iOS
4.1.1. Pros:
4.1.1.1. Simplicity
4.1.1.2. Fast Performance
4.1.2. Cons:
4.1.2.1. Buggy Wi-Fi Connection
4.1.2.2. Safari still returns Old cache when back button is pressed
4.2. Android
4.2.1. Pros:
4.2.1.1. Open Source
4.2.1.2. Multi-Tasking
4.2.2. Cons:
4.2.2.1. Increased risk of hacking
4.2.2.2. Carriers may reject Android when they want to charge for their apps, but Android would make it free
4.3. RIM
4.3.1. Pros:
4.3.1.1. Business Oriented
4.3.1.2. Fast web browser
4.3.2. Cons:
4.3.2.1. Slower than other smartphones
4.3.2.2. Lacks multimedia capabilities
4.4. Symbian
4.4.1. Pros:
4.4.1.1. Supported by many phone manufacturers
4.4.1.2. Multitasking
4.4.2. Cons:
4.4.2.1. Poor web browser
4.4.2.2. Apps are costly and need to be repurchased instead of transferred