Controllers (or "joysticks", although JoyStick is a bit different).
Many different input devices were made for the PSX, but the most common were 2 types of controllers: with motors (DualShock) and WITHOUT motors.
The first controller model was motorless.
PSX controllers became an icon of the era in terms of design: boomerang shape and 4 buttons: square, cross, circle and triangle.
Later on, though, the vibromotors with analog sticks made another technical revolution (although I almost never used them myself, it was inconvenient to control, but the roar of the helicopter in Metal Gear Solid was imprinted in my memory forever).
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Dual Analog Controller. DualShock predecessor.
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