Windows 7: I can't believe that windows 7 runs great on 512mb ram

System Manufacturer/Model Number Dell Dimension 9200
OS Windows 7 Ultimate
Memory 512mb ram runs GREAT
Graphics Card NVIDIA GeForce 7300le

Computer type PC/Desktop
System Manufacturer/Model Number Built them myself, Science Experiments !
OS Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
CPU AMD fx8350 4ghz, AMD-32 2400mhz, AMD-64 3200mhz, AMDx64 2.8G
Motherboard SIS 755, ECS-K8M890M-M (Ult 7600), GigaByte & others
Memory 2gb, 4gb on the Ult 7600, 4gb on Technet RTM, 32gb on FX8350
Graphics Card Draw my own Graphics, several nVidia cards
Sound Card on motherboard
Monitor(s) Displays 19" flat scr, 28" I-Inc widescr,22" Emprex Widescr, 23" Acer
Screen Resolution 1280 x 1024, 1440 x 900, 1920 x 1080

Keyboard Compaq & Dell recycled from GoodWill
Mouse Made in China Optical Wired Mouse
PSU 430w, 550w, 600w, 700, 800, etc
Case All Generic Full Towers
Cooling Open Air & a few fans, some w/ colored LEDs
Hard Drives 6 pata Ide HD's & 2 Sata HD's added 80gb external on Ult 7600 computer, numerous extra 1tb, 2TB, 3Tb SATA HD's A collection of ext HD Docks w/ HDs
Internet Speed Fast Cable InterNet
Antivirus AVG Free on 24 different Desktops, NO Problems!
Browser IE 8 is preferred, but use FireFox sometimes
Other Info Linksys Routers, switches, & Hubs Too Many USB Flash Drives to count, Biggest is 64GB ! Eight computers in my home network. Sixteen computers at my business network. Linked via TeamViewer ! Lots of old used spare computer parts everywhere!