Symbian Operating System Technology Quiz

The Symbian Foundation Ltd was registered in London, United Kingdom. While the foundation had offices in multiple cities including Foster City (US), Tokyo (Japan), and Helsinki (Finland), its official registration was in London. The other locations are incorrect.

The official launch of the Symbian Foundation and the first Board of Directors meeting was held on February 5, 2009. This event marked the formal beginning of the foundation's operations after its registration in 2008. The other dates are not the official launch date.

The Symbian source code was first made available on April 3, 2009. This was a significant milestone in the foundation's open source initiative, allowing developers to access the mobile operating system code. The other dates are incorrect.

Symbian source code was made available under both the Symbian Foundation License (SFL) and the Eclipse Public License (EPL). This dual-licensing approach provided flexibility for different use cases. The options suggesting only one license or no license are incorrect.

The Symbian Kernel was made available under the Eclipse Public License (EPL) on October 21, 2009. This was part of the gradual open-sourcing of different Symbian components. The other dates do not correspond to this milestone.

The entire Symbian^3 platform was made available under open source licenses on February 4, 2010. This completed the foundation's goal of fully open-sourcing the Symbian platform. The other dates are incorrect for this milestone.

The Symbian Foundation had offices in London (UK), Foster City (US), Tokyo (Japan), Helsinki (Finland), and Beijing (China). Beijing was the Chinese office location, not Shanghai, Hong Kong, or Nanjing. This global presence reflected the international nature of the Symbian ecosystem.

Dietmar Tallroth is identified as the Legal Counsel of Symbian. This is a factual role within the Symbian organization structure.

Steve Warner is identified as the Human Resource manager of Symbian. This is a specific personnel fact about Symbian's organizational structure.

Approximately 5% of Symbian's members were Indian as of August 2010. This represents the demographic breakdown of Symbian's membership at that time.

Approximately 18% of Symbian's members were Japanese. This reflects the Japanese representation in Symbian's membership demographics.

When Symbian open-sourced its platform in 2010, the source code was released primarily under the Eclipse Public License (EPL), which is a common open source license for such projects.

Symbian^2 was completed in May 2009. This is a factual question about the timeline of the Symbian mobile operating system's development. The question tests knowledge of mobile OS history and specific release dates.

Symbian^3 was completed in June 2010. Note that this question has a typo in the content (repeated 'Symbian^3 was completed in') and inconsistent capitalization in options (only 'july' has a capital 'J' in option A). Despite these presentation issues, June 2010 is factually correct for Symbian^3.

The first Symbian^2 device shipped in Japan in June 2010. Japan was a key market for Symbian devices, particularly through manufacturers like Nokia. This question tests knowledge of mobile technology market history and geography.

Symbian has over 45 million lines of code as measured by Ohloh.net. This reflects the massive scale of the Symbian operating system, which was developed by multiple companies over many years. The question tests knowledge of software engineering metrics and the complexity of major operating systems.

Symbian^3 had approximately 2800 software components. This reflects the modular architecture of the Symbian operating system, which was designed to be component-based for flexibility and maintainability. The question tests knowledge of software architecture and the complexity of mobile operating systems.

Symbian OS was associated with 14 technology domains covering various aspects of mobile computing including telecommunications, multimedia, and networking. This number reflects the comprehensive scope of the Symbian platform's technical specifications.

The electromagnetic spectrum order by increasing frequency: radio waves (lowest frequency), visible light, ultraviolet, X-rays (highest frequency). This matches option C: 4,1,3,2. Frequency is inversely proportional to wavelength, and energy increases with frequency.

The dental formula for humans is 2123/2123, representing the number of each type of tooth in one quadrant: 2 incisors, 1 canine, 2 premolars, and 3 molars. This formula is counted for each quadrant (upper right, upper left, lower right, lower left).