Short answers, pulled from the story.
The Nintendo Switch was officially released on the 3rd of March 2017, in Japan, most English-speaking and Western markets, and in the United Arab Emirates. It launched with an MSRP of $299 in the United States, ¥29,980 in Japan, £279 in the United Kingdom, and AU$469 in Australia.
Shinya Takahashi and Yoshiaki Koizumi served as general manager and deputy general manager of Nintendo's Entertainment Planning & Development Division respectively to explain the design approach for the Switch. The development within Nintendo was headed by younger employees under the leadership of these managers.
The Nintendo Switch runs a proprietary operating system named Horizon built on a microkernel architecture. Its user interface features tile-based access to games stored within the unit's storage devices or present in the game card slot.
The Switch became a major commercial success shipping over 150 million units worldwide. It is the third-best selling console of all time behind the PlayStation 2 and Nintendo DS and is also Nintendo's most successful home console to date surpassing the Wii's 101.6 million units.
The Nintendo Switch Lite launched on the 20th of September 2019, in three colors: yellow, grey, and turquoise. A special Pokémon Sword and Pokémon Shield branded version of the Switch Lite themed around Zacian and Zamazenta launched on the 8th of November 2019.