A family of CPUs from Intel that are part of its Centrino brand for mobile computing. Introduced in 2003 at speeds up to 1.6 GHz, it was formerly code named "Banias." Introduced in 2004, the second-generation Pentium M (code named "Dothan") uses the same chip package but is built with 90 nm circuits rather than 130 nm. Dothan added support for the PCI Express bus, Serial ATA (SATA) and Gigabit Ethernet.