Short answers, pulled from the story.
The Nintendo Switch was released worldwide on the 3rd of March 2017. This release date marked the beginning of the console's journey as a hybrid video game console that could function as both a home console and a portable device.
The Nintendo Switch Joy-Con controllers feature buttons, directional analog sticks, motion sensing, and tactile feedback. These controllers can attach to the console via side rails or detach to be used separately as individual controllers for two players.
Global sales of the Nintendo Switch have exceeded 150 million units. This sales figure makes the Nintendo Switch the third-best selling console of all time behind the PlayStation 2 and the Nintendo DS.
The Nintendo Switch Lite was released on the 20th of September 2019 as a handheld-only version of the console. It uses a 16-nanometer Tegra X1+ chipset to extend battery life from 2.5 to 6.5 hours to 3 to 7 hours on a single charge.
The Nintendo Switch OLED Model was released on the 8th of October 2021. This version features a 720p OLED display, 64 GB of internal storage, a magnesium alloy body, and a new dock that includes a wired LAN port.