When yo u make pro cesso rs smaller the mo re tightly

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Unformatted text preview: n able to afford the technology of a prior generation. 12. How have cheaper, faster chips impacted the camera industry? Give an example of the leadership shifts that have occurred in this industry. 13. What has been the impact of “faster, cheaper” on Apple’s business lines? 14. How did Amaz on utiliz e the steep decline in magnetic storage costs to its advantage? 15. How does Moore’s Law impact production and inventory decisions? 5.2 The Death of Moore’s Law? L E A RN I N G OBJ E C T I V E S 1. Describe why Moore’s Law continues to advance and discuss the physical limitations of this advancement. 2. Name and describe various technologies that may extend the life of Moore’s Law. 3. Discuss the limitations of each of these approaches. Mo o re simply o bserved that we’re getting better o ver time at squeezing mo re stuf f into tinier spaces. Mo o re’s Law is po ssible because the distance between the pathways inside silico n chips gets smaller with each successive generatio n. While chip plants (semico nducto r f abricatio n f acilities, o r f abs) are incredibly expensive to build, each new generatio n o f f abs can crank o ut mo re chips per silicon waf er. And since the pathways are clo ser to gether, electro ns travel sho rter distances. If electro nics no w travel half the distance to make a calculatio n, that means the chip is twice as f ast. But the shrinking can’t go o n f o rever, and we’re already starting to see three interrelated f o rces —size, heat, and po w er—threatening to slo w do wn Mo o re’s Law’s advance. When yo u make pro cesso rs smaller, the mo re tightly packed electro ns will heat up a chip—so much so that unless to day’s mo st po werf ul chips are co o led do wn, they will melt inside their packaging. To keep the f astest co mputers co o l, many P Cs, lapto ps, and video game co nso les need f ans, and mo st co rpo rate data centers have elabo rate and expensive air co nditio ning and venting systems to prevent a meltdo wn. A trip thro ugh the Facebo o k data center during its recent rise wo uld sho w that the f irm was a “ho t” start-up in mo re ways than o ne. The f irm’s servers ran so ho t that the P lexiglas sides o f the f irm’s server racks were warped and melting!E. McGirt, “Hacker, Dro po ut, C.E.O.,” Fast Co mpany, May 2007. The need to co o l mo dern data centers draws a lo t o f po wer and that co sts a lo t o f mo ney. The chief eco o f f icer at Sun Micro systems has claimed that co mputers draw 4 to 5 percent o f the wo rld’s po wer. Go o gle’s chief techno lo gy o f f icer has said that the f irm spends mo re to po wer its servers than the co st o f the servers themselves.D. Kirkpatrick, “The Greenest Co mputer Co mpany under the Sun,” April 13, 2007. Apple, Facebo o k, Micro so f t, Yaho o ! and Go o gle have all built massive data centers in the P acif ic No rthwest, away f ro m their co rpo rate headquarters, specif ically cho o sing these lo catio ns f o r access to cheap hydro electric po wer. Go o gle...
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This document was uploaded on 01/31/2014.

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