Features This computer was designed with the user in mind. Here are just a few of its many features: Performance Mobile Intel® Pentium®4 processor-M with 512KB level 2 cache featuring the new Enhanced Intel® SpeedStepTM technology Memory expandable up to 1GB Internal removable DVD drive (AcerMedia bay) High-capacity, Enhanced-IDE hard disk Li-Ion main battery pack Power management system with ACPI (Advanced Configuration Power Interface) Li-Ion main battery pack Power management system with ACPI (Advanced Configuration Power Interface) Smart Card interface with pre-boot authentication system for added security 4-in-1 multimedia reader