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The DualShock (trademarked as DUAL SHOCK) is a line of vibration-feedback gamepads by Sony for PlayStation consoles and devices. The DualShock was introduced in Japan in late 1997, and launched in the North American market in May 1998. First introduced as a secondary peripheral for the original PlayStation, a revised PlayStation version came with the controller and Sony subsequently phased out the digital controller that was originally included with the console, as well as the Sony Dual Analog Controller. As of June 2008, over 28 million controllers have been sold in the DualShock line (excluding bundled controllers). ==Original DualShock== The DualShock Analog Controller (SCPH-1200), a controller capable of providing vibration feedback, was based on the on-screen action of the game (if the game supports it), as well as analog input through two analog sticks. The controller's name derives from its use of two (dual) vibration motors (shock). These motors are housed within the handles of the controller, with the left one being larger and more powerful than the one on the right, so as to allow for varying levels of vibration. The DualShock differs from the Nintendo 64's Rumble Pak in this respect as the Rumble Pak only uses a single motor. The Rumble Pak also uses batteries to power the vibration function while all corded varieties of the DualShock use power supplied by the PlayStation. (However, some third party DualShock-compatible controllers use batteries instead of the PlayStation's power supply.) The rumble feature of the DualShock is similar to the one featured on the first edition of the Japanese Dual Analog Controller, a feature that was removed shortly after that controller was released. Like its predecessor, the Dual Analog controller, the DualShock has two analog sticks, but unlike its predecessor, the DualShock's analog sticks feature textured rubber grips instead of the smooth plastic tips with recessed grooves found on the Dual Analog controller's analog sticks. The DualShock also features two additional buttons when compared to the Dual Analog, L3 and R3, which are triggered by pressing the analog sticks down. Other differences between Dual Analog and the DualShock include the longer grips/handles and slightly different L2/R2 buttons found on the Dual Analog. The controller was hugely supported; shortly after its launch most new titles, including ''Crash Bandicoot: Warped'', ''Spyro the Dragon'', and ''Tekken 3'' included support for the vibration feature and dual analog sticks. Some games designed for the Dual Analog's vibration capability, such as ''Porsche Challenge'' and ''Crash Bandicoot 2'', also work. Many games took advantage of the presence of two motors to provide vibration effects in stereo including ''Gran Turismo'' and the PlayStation port of ''Quake II''. Released in 1999, the PlayStation hit ''Ape Escape'' became the first game to explicitly require DualShock/Dual-Analog-type controllers, with its gameplay requiring the use of both analog sticks. In 2000, when the PSone slim was released with the slightly redesigned DualShock Controller (SCPH-110), similar to the first one, except its color is white instead of gray, in the middle of the controller has the "PSone" logo, instead of the "PlayStation" naming, most of the buttons, analog sticks and the cord are brighter than the previous one, and the connector is more of a semi-circle shape than having round edge, it also came in colors. The DualShock is also compatible with the PlayStation 2, as they use the same connector and protocol. However, certain PS2 games that utilize the DualShock 2's analog buttons, such as ''The Bouncer'', are not compatible with the DualShock. The DualShock is fully forwards compatible with the PlayStation 2 when that console is used to play PlayStation games. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「DualShock」の詳細全文を読む スポンサード リンク
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