 The label of "Compaq Presario 1200" includes a vast set of model numbers and revisions, many of which are not totally compatible, even though the machines share the same general Presario model number.Many original models of the Presario 1200 series ran on AMD K6-2 processors, which was quite an adventurous move at a time when AMD was very much second place to the dominant market leader Intel.The chips were notable for their inclusion of 3D-NOW technology, enabling marked performance increases from the original K6.