Features Below is a brief summary of the computer’s many features: Operating system Windows® VistaTM Ultimate Windows® VistaTM Home Premium Windows® VistaTM Home Basic Windows® VistaTM Starter Platform and memory AMD Better By Design program, featuring: AMD TurionTM 64 X2 dual-core mobile technology TL-66 / TL-64 / TL-60 / TL-56 / TL-52 (1 MB L2 cache, 2.3 GHz / 2.2 GHz / 2.0 GHz / 1.8 GHz / 1.6 GHz GHz, supporting AMD HyperTransport® technology (for selected models) Mobile AMD SempronTM 3500+/3600+/3800+ (1.8/ 2.0/2.2 GHz, 512/256/256KB L2 cache), supporting AMD HyperTransport® technology (for selected models) NVIDIA nForce® 630M chipset Acer InviLinkTM 802.11b/g Wi-Fi CERTIFIED® solution, supporting Acer SignalUpTM wireless technology Up to 2GB of DDR2 533/677 MHz memory, upgradeable to 4GB using two soDIMM modules (dual-channel support)