1. Lower Energy Computer System -- Operation System running on USB Flash drive Ian

2. Feasibility Study Business Problem: Now the modern computer consume a lot of energy. Desk top computer usually are 300w – 400w, even more.Now the modern computer consume a lot of energy. Desk top computer usually are 300w – 400w, even more. But in a emergency condition, we need limited power to support as long as possible to make the computer even the internet work.But in a emergency condition, we need limited power to support as long as possible to make the computer even the internet work..

3. Feasibility Study Current Situation: A desktop (or laptop) computer with the ability to boot from USB flash drive.A desktop (or laptop) computer with the ability to boot from USB flash drive.

4. Feasibility Study Approach Overview: One way is to running system from USB flash drive, it works same to RAM, it can save 10% power than running OS from hard disk. When read data from hard disk, it normally use 15% power of total, and RAM only 5%.

5. Feasibility Study Potential Solutions: Boot windows xp Operation System from USB flash drive.Boot windows xp Operation System from USB flash drive. Boot linux Operation System from USB flash drive.Boot linux Operation System from USB flash drive.

6. Windows VS Linux --- power consumption Frequency (MHz) Linux Idle Linux Max Windows Idle Windows Max 60014.3116.5411.2414.85 80015.6920.98 100015.8822.71 120016.4725.71 130016.927.4512.8425.53

7. Windows VS Linux Windows XP Linux UBUNTU price$238free Office include? NOyes Easy to make boot from USB? Very hard hard Can drive all the component ? No NoYes Easy to use? yes Need training Can working on any PC? Some times not Yes

8. Hard drive VS USB flash drive Hard drive power consumption round 10watts, depend on capacity and brand. when it is start is consume more power than idle time, up to 30 watts.Hard drive power consumption round 10watts, depend on capacity and brand. when it is start is consume more power than idle time, up to 30 watts. Flash drive using is a special Ram, power consumption under 1 watts.Flash drive using is a special Ram, power consumption under 1 watts.

9. Cost Estimate - USB Flash Drive with bootable function. 4-8GMB price: $100 - Operation system that will install on USB: –Windows XP professional –Office work on USB –Linux operation system (Ubuntu 7.10) price :$500 price :$500

10. Sketch

11. Installation and Test Windows XPWindows XP Instruction: install windows in USB trail 5 Instruction: install windows in USB trail 5 Result: fail Result: fail Linux OS (UBUNTU 7.10)Linux OS (UBUNTU 7.10) Instruction: install UBUNTU desktop version 7.10 in USB Instruction: install UBUNTU desktop version 7.10 in USB Result: pass Result: pass