The PlayStation 4 (PS4) is a home video game console developed and marketed by Sony Computer Entertainment. It was first released in 2013 and is the successor to the PlayStation 3. The PS4 is a high-powered gaming console that is capable of playing a wide range of games in full high definition (HD) and even 4K resolution. It features a custom AMD processor, 8GB of GDDR5 memory, and a 500GB or 1TB hard drive, as well as a Blu-ray drive for playing physical media. The PS4 also has a variety of connectivity options, including Wi-Fi, Bluetooth, and HDMI, and supports online gaming through the PlayStation Network (PSN). It is the fourth best-selling console of all time, with over 100 million units sold worldwide.