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COVER FEATURE<br />
7. P.F. Anderson and J.D. Martin, “Lease vs. Purchase<br />
Decisions: A Survey of Current Practice,” Financial<br />
Management, vol. 6, no. 1, 1977, pp. 41-47.<br />
8. M. Palankar et al., “Amazon S3 for Science Grids: A<br />
Viable Solution?” Proc. Int’l Workshop Data-Aware<br />
Distributed Computing, ACM Press, 2008, pp. 55-64.<br />
9. E. Deelman et al., “The Cost of Doing Science on the<br />
Cloud: The Montage Example,” Proc. ACM/IEEE Conf.<br />
Super<strong>computing</strong>, IEEE Press, pp. 1-16.<br />
10. E. Walker, “The Real Cost of a CPU Hour,” Computer,<br />
Apr. 2009, pp. 35-41.<br />
11. W.G. Lewellen, The Cost of Capital, Wadsworth Publishing,<br />
1970.<br />
12. US Environmental Protection Agency, Energy<br />
Star Program, Report to Congress on Server and<br />
Data Center Energy Efficiency, Public Law 109-<br />
431, Aug. 2007; www.energystar.gov/ia/partners/<br />
___________________________________<br />
prod_development/downloads/EPA_Datacenter_<br />
Report_Congress_Final1.pdf.<br />
___________________<br />
Edward Walker is a researcher with the Texas Advanced<br />
Computing Center at the University of Texas at Austin.<br />
His research interests include distributed systems, storage<br />
systems, and operating systems. Walker received a PhD in<br />
Welcomes Your Contribution<br />
COMPUTER<br />
Computer<br />
magazine<br />
looks ahead<br />
to future<br />
technologies<br />
computer science from the University of York, UK. He is a<br />
member of IEEE and the ACM. Contact him at ewalker@ ______<br />
computer.org.<br />
Walter Brisken is a scientist at the National Radio Astronomy<br />
Observatory. His research interests include pulsars,<br />
the ionized interstellar medium, and very long baseline<br />
interferometry. Brisken received a PhD in physics from<br />
Princeton University. He is a member of the American<br />
Astronomical Society. Contact him at _____________<br />
wbrisken@nrao.edu.<br />
Jonathan Romney is a scientist at the National Radio<br />
Astronomy Observatory. His research interests include<br />
active galactic nuclei and astronomical instrumentation.<br />
Romney received a PhD in astronomy from the California<br />
Institute of Technology. He is a member of the American<br />
Astronomical Society, the International Astronomical<br />
Union, and the International Union of Radio Science (URSI).<br />
Contact him at jromney@aoc.nrao.edu.<br />
________________<br />
Selected CS articles and columns are available for free<br />
at http://ComputingNow.computer.org.<br />
Computer, the flagship publication of the IEEE<br />
Computer Society, publishes peer-reviewed<br />
technical content that covers all aspects of<br />
computer science, computer engineering,<br />
technology, and applications.<br />
Articles selected for publication in Computer<br />
are edited to enhance readability for the nearly<br />
100,000 <strong>computing</strong> professionals who receive<br />
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Readers depend on Computer to provide current,<br />
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the newest directions in <strong>computing</strong> technology.<br />
To submit a manuscript for peer review,<br />
see Computer’s author guidelines:<br />
www.computer.org/computer/author.htm<br />
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