Lenovo Processor2 Intel Pentium Dual-Core E2140 Processor 1.60 GHz Network Interface Ethernet-Integrated Installed OS Genuine Windows Vista Business Slots and bays (total/available) 4(4) x 4(2) Memory (std/max) 1 GB/2 GB Disk capacity1 160 GB (Serial ATA) Form factor Tower Audio ADI 1988 A Configuration type Tower, PCI/PCI Express Graphics subsystem Intel Graphics Media Accelerator 950, and PCI Express Media Device8 DVD Recordable:40X Max;