[[File:PSone-Console-Set-NoLCD.jpg]]
A psone (officially stylized as '''PS one''' and alternatively spelled '''PSOne''' and '''PSone''') is a smaller, redesigned version of the original PlayStation platform.<ref name="PSOne"/> (Dimensions are 38 mm × 193 mm × 144 mm versus 45 mm × 260 mm × 185 mm.) It was released on 7 July 2000,<ref>{{cite web | url=http://www.scee.presscentre.com/Content/Detail.asp?ReleaseID=98&NewsAreaID=22 | title=SCEE 2000—Key Facts and Figures | publisher=Sony Computer Entertainment Europe | access-date=2006-11-25 | url-status=dead | archive-url=https://web.archive.org/web/20070919215408/http://www.scee.presscentre.com/Content/Detail.asp?ReleaseID=98&NewsAreaID=22 | archive-date=2007-09-19 }}</ref> and went on to outsell all other consoles throughout the remainder of the year—including Sony's own [[PlayStation 2]].<ref name="PSOne">{{cite web | title = Sony PS One sales rocket as PS Two famine continues | publisher = theregister.co.uk | last = Smith| first = Tony | url = https://www.theregister.co.uk/2000/12/06/sony_ps_one_sales_rocket/ | date = 2000-12-06 | access-date = 2008-08-22 }}</ref> 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)