Short answers, pulled from the story.
The Sega Saturn contained eight processors, including two Hitachi SH-2 microprocessors clocked at 28.6 MHz, a Motorola 68EC000 sound controller, and two video display processors. This dual-CPU architecture allowed games like Virtua Fighter to run at 60 frames per second, though the shared bus created performance bottlenecks.
Sega of America released the Sega Saturn on the 11th of May 1995, four months ahead of the originally planned September launch date. This surprise move was mandated by Sega of Japan to gain an advantage over the PlayStation, resulting in 30,000 units being shipped to retailers like Toys R Us and Electronics Boutique.
The Sega Saturn failed commercially in the West due to a complex dual-CPU architecture that baffled developers, a surprise launch that alienated retailers, and the cancellation of the flagship game Sonic X-treme in early 1997. The lack of a fully 3D Sonic platformer left the console without a title to compete with Nintendo's Super Mario 64, leading to a three-to-one sales deficit against the PlayStation by 1997.
The Sega Saturn sold 5.75 million units in Japan, making it Sega's highest-selling home console and surpassing the Nintendo 64's install base of 5.54 million units. This success was driven by exclusive titles like Panzer Dragoon Saga and Dragon Force, which achieved an attach rate of 16.71 games per console.
The Sega Saturn introduced the 3D Pad, which featured an analog stick, analog shoulder triggers, and a control pad to support games like Nights into Dreams. This controller set the template for every successful controller that followed, including wireless infrared controllers and multitaps that supported up to 12 players.