Sony PS One

The PS One (officially stylized as PS one and alternatively spelled PSOne and PSone) is a smaller, redesigned version of the original PlayStation platform. (Dimensions are 38 mm × 193 mm × 144 mm versus 45 mm × 260 mm × 185 mm.) It was released on July 7, 2000, and went on to outsell all other consoles throughout the remainder of the year—including Sony's own PlayStation 2. The PS One is fully compatible with all PlayStation software, but compatibility with peripherals may vary. The PS One model also had additional changes, including the removal of the parallel and serial ports from the rear of the console, and the removal of the reset button (the power button is also labeled as a reset button, but the console cannot be reset without entirely turning it off). Sony also released a version with a 5-inch LCD screen and an adaptor (though it did not have a battery: it is powered by plugging the adaptor in a main socket, or in a car). It was called the Combo pack. However, it includes a headphone jack (for headphones or other audio connection) and an AV mini jack for connecting camcorders or other devices.