Short answers, pulled from the story.
The original PlayStation was released in Japan on the 3rd of December 1994. This release marked the beginning of Sony's dominance in the video game industry following the betrayal by Nintendo in 1991.
Ken Kutaragi is known as the Father of the PlayStation. He was the engineer tasked by President Norio Ohga to create a rival console after Nintendo broke their partnership deal in 1991.
By December 2003, the original PlayStation and its redesigned version PS one had shipped a combined total of 102.49 million units. This achievement made it the first console to cross the 100 million unit threshold.
The PlayStation Vita was discontinued in March 2019. Sony Interactive Entertainment president Jim Ryan stated that the company had moved away from the portable console market at that time.
The PlayStation Portal was released on the 15th of November 2023. This device represents a new direction for Sony's handheld strategy by focusing on streaming games from a home console rather than standalone hardware.
The PlayStation Network was launched in 2006. As of December 2019, the network connected over 103 million active users monthly and provided services including online multiplayer gaming and digital media delivery.