Instruction: when was the Playstation 5 announced?
Context: The PlayStation 5 (PS5) is a home video game console developed by Sony Interactive Entertainment. It was announced as the successor to the PlayStation 4 in April 2019, was launched on November 12, 2020, in Australia, Japan, New Zealand, North America, and South Korea, and was released worldwide one week later. The PS5 is part of the ninth generation of video game consoles, along with Microsoft's Xbox Series X/S consoles, which were released in the same month.

The base model includes an optical disc drive compatible with Ultra HD Blu-ray discs. The Digital Edition lacks this drive, as a lower-cost model for buying games only through download. The two variants were launched simultaneously.

The PlayStation 5's main hardware features include a solid-state drive customized for high-speed data streaming to enable significant improvements in storage performance, an AMD GPU capable of 4K resolution display at up to 120 frames per second, hardware-accelerated ray tracing for realistic lighting and reflections, and the Tempest Engine for hardware-accelerated 3D audio effects. Other features include the DualSense controller with haptic feedback, backward compatibility with the majority of PlayStation 4 and PlayStation VR games, and the PlayStation VR2 headset.

History
Development

Mark Cerny, the PlayStation 5's chief architect
The lead architect of the PlayStation console line, Mark Cerny, implemented a two-year feedback cycle after the launch of the PlayStation 4. This entailed regularly visiting Sony's first-party developers at two-year intervals to find out what concerns they had with shortcomings in Sony's current hardware and how such hardware could be improved in console refreshes or for the next generation. This feedback was fed into the priorities for the console development team. In the development of the PlayStation 5, a key issue was the length of loading times for games. Cerny said several developers, including Epic Games' Tim Sweeney, told him that standard I/O speed of hard disk drives was now a limiting factor in pushing game development. Slow data rates placed limits on the size of data being loaded into the game, the physical location of data on the storage medium, and the duplication of data across the medium in order to reduce load times. An important goal was to find ways to reduce loading time, particularly in games that stream or dynamically load new game areas as the player moves through the game world.

Jim Ryan, the CEO of Sony Interactive Entertainment, stated that Sony had researched the feasibility of a "low priced, reduced spec" version of the PlayStation 5, like what Microsoft had done with its Xbox Series X and its lower-power counterpart the Xbox Series S; and concluded that they believed such consoles do not fare well, becoming obsolete too fast.

Marketing and release
Cerny first publicly described the new console in an interview with Wired magazine in April 2019. In early 2019, Sony's financial report for the quarter ending March 31, 2019, affirmed that new next-generation hardware was in development but would ship no earlier than April 2020. In a second Wired magazine interview in October 2019, Sony said it intended to ship its next-generation console worldwide by the end of 2020. The current hardware specifications were revealed in October 2019. At CES 2020, Sony unveiled the official logo for the platform, which follows the similar minimalist styling of the previous PlayStation consoles and brand. Full specifications were given in an online presentation by Cerny and published by Sony and Digital Foundry on March 18, 2020. Digital Foundry spoke with Cerny in detail and published a "deep dive" on April 2.

A major game library showcase had been planned for June 4, 2020, but was postponed until June 11 due to the George Floyd protests. This presentation was also the premiere of the console's external hardware design.


Event lighting being set up at SIE headquarters on the evening of November 8, four days before the launch on November 12, 2020.
Sony planned to launch the PlayStation 5 by the 2020 end-of-year holiday period. The date and pricing was confirmed as part of a game showcase presentation on September 16, 2020; the release date in Australia, Japan, New Zealand, North America, and South Korea was confirmed for November 12, 2020, and for most of the rest of the world on November 19, 2020.

PlayStation 5's release in India was delayed, leading to speculation that a trademark dispute was the reason; the name "PS5" was briefly trademarked by a different person; eventually the dispute was resolved and the system released there on February 2, 2021. The console launched in Indonesia on January 22, 2021. The system launched in China on May 15, 2021.

The console launched with two models: a base version with an Ultra HD Blu-ray compatible optical disc drive for retail game support alongside online distribution via the PlayStation Store, and a lower-cost variant lacking the disc drive and retaining digital download support.

Following the September 16, 2020, presentation, Sony stated that pre-orders for the console were to open at various retailers on the following day. However, several retailers in the United States and the United Kingdom launched pre-orders that evening, causing a rush on pre-orders, including scalping as many stores' inventories were quickly sold out, and creating confusion. Sony apologized for the incident on September 19, 2020, and promised to increase more pre-order deliveries over the coming days and stock through the end of the year.

Worldwide supply of the console has remained low due to a global chip shortage since 2020. Sony expects a short retail stock until 2023. In August 2022, Sony announced a price increase by up to 20% in most of its markets except the US, citing global economic, inflationary, and supply chain pressures.
Response: The PlayStation 5 (PS5) is a home video game console developed by Sony Interactive Entertainment. It was announced as the successor to the PlayStation 4 in April 2019, was launched on November 12, 2020, in Australia, Japan, New Zealand, North America, and South Korea, and was released worldwide one week later.