Variations
Later, two variations were made, called the GamePad Pro, and GamePad Pro USB, which resemble the original PlayStation Controller. The GamePad Pro employed advanced signaling techniques to allow for both the use of ten buttons and the simultaneous use of up to four controllers connected by the controller's built-in piggyback plug, but games couldn't detect the gamepad unless they were coded with the device in mind (DOS) or a specific driver was installed (Windows). The latter uses the USB port and the USB Human Interface Device class standards, is not intended for DOS use. Gravis launched other series of gamepads for the Mac, the Amiga, and Atari ST as well.
The CD-i interactive multimedia CD player features a wired controller that is basically the original Gravis PC GamePad in a monochrome, grey color scheme. The Gravis logo is replaced with the Philips logo. There are only two button functions, and the switch at the bottom controls the cursor speed in menus.
Read more about this topic: Gravis PC GamePad
Famous quotes containing the word variations:
“I may be able to spot arrowheads on the desert but a refrigerator is a jungle in which I am easily lost. My wife, however, will unerringly point out that the cheese or the leftover roast is hiding right in front of my eyes. Hundreds of such experiences convince me that men and women often inhabit quite different visual worlds. These are differences which cannot be attributed to variations in visual acuity. Man and women simply have learned to use their eyes in very different ways.”
—Edward T. Hall (b. 1914)