Accessory
The most common accessory for video game consoles are the controllers used to play the games. The controllers have evolved since the day of Pong and the spinner. Now there are direction controls as well as many types of other inputs. One type of directional control is the directional pad or D-Pad. The D-Pad is designed to look like an addition sign with each branch being one of the four cardinal directions; left, right, up, and down. It has been around since the original Nintendo Entertainment System, and has been in every Nintendo system since. Another feature in the recent console controllers are the analog sticks, used for 360? directional control. Often used for camera angle control, the idea is to give the player full control by allowing any direction to be used. The analog controls made their first appearance in the 1970s consoles under the name joystick; they made a reappearance in console systems with the Nintendo 64. Analog sticks have been used in every modern console since. There is no analog stick on the Wii Remote, but it is present on the Nunchuk attachment bundled with the Wii console. The most recent development in directional controls is free motion control. Using accelerometers in the Wii Remote and Nunchuk, acceleration in any direction can be detected and measured. This is still a new type of control scheme and is fully taken advantage of in the Wii as well as the PlayStation 3's SIXAXIS controller, and PlayStation Move controller that has tilt detection. While directional controls are one important part of controllers there are also general inputs, usually in the form of buttons either on the front or on the tope edges (shoulders) of the controller. These buttons are simply designed usually labeled either by some color, shape, or letter identification. The buttons can be used for simplistic one action ideas like jumping or performing some kind of generic melee attack, but they can also be used to string together combinations of maneuvers like a martial artist's attacks. In systems beginning with the Super Nintendo, buttons on the shoulders of the controller have become commonplace. In the case of the Xbox series of systems (and Sega Dreamcast), the shoulder buttons are shaped and used more like a gun trigger.