Toshiba Satellite A45-S250 Laptop (2.8 GHz Pentium 4, 512 MB RAM, 60 GB Hard Drive, DVD+R/RW Combo) Hard Drive: 60 GB enhanced-IDE hard drive (4200 RPM) Processor: The 2.8 GHz Mobile Intel Pentium 4 processor can save power when it's not needed, thus conserving battery life Memory: The A45-S150 comes with a 512 MB built-in memory with a maximum memory expansion up to 1 GB CD/DVD Drive: It comes equipped with a DVD+-R/+-RW drive that writes both DVD and CD discs Keyboard & Mouse: The A45-S150 has an 85-key keyboard with 12 function keys and a two-button touchpad