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Major developments in technology

Major developments in technology. Transistor Batteries Display screens, LCD, LED, Plasma Microelectronics – surface mount components. Moore's law describes a long-term trend in the history of computing hardware.

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Major developments in technology

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  1. Major developments in technology • Transistor • Batteries • Display screens, LCD, LED, Plasma • Microelectronics – surface mount components

  2. Moore's law describes a long-term trend in the history of computing hardware. The number of transistors that can be placed inexpensively on an integrated circuit has doubled approximately every two years. The trend has continued for more than half a century and is not expected to stop until 2015 or later. The capabilities of many digital electronic devices are strongly linked to Moore's law: processing speed and memory capacity, sensors and even the number and size of pixels in digital cameras All of these are improving at (roughly) exponential rates. This has dramatically increased the usefulness of digital electronics in nearly every segment of the world economy Moore's law describes a driving force of technological and social change in the late 20th and early 21st centuries. Miniaturisation

  3. Task Prepare a chart highlighting the improvements in portable music players and mobile phones. Make sure that you include the relevant important developments. Explain how Moores theory has been proven as these products have developed.

  4. nanomanufacturing • A sizable library of nanoscale "building blocks" has been developed over the last couple of decades. • These nanostructures — particles, disks, rods - are frequently synthesized in solution. • One of the main challenges in nanomanufacturing is to place these solution-based nanoparticles at precise locations on a substrate with nanometer control. • Once the interactions are understood, researchers can then design processes to assemble macro scale objects from nanoscale components. • http://cnst.nist.gov/nanofab_res/Projects/NDSA/images/OTMmovie.avi • http://www.howstuffworks.com/nanotechnology.htm

  5. Fluidic self assembly • Programmable matter, a substance that is able to change its physical properties as directed by the user. • Imagine a system that assembles a pile of regular, mass-produced components into an iPod, computer, robot, or tool with embedded sensing and computation. • Objects can be assembled or repaired ‘on-the-fly’, and deconstructed to be recycled into new objects when they are no longer needed. • This technology would open up new possibilities for rapid prototyping, space exploration, sustainable technology, and evolutionary design. • Cornell Universities’ approach to programmable matter involves the assembly of components with embedded electronics by manipulating the flow of fluid through an assembly chamber • http://ccsl.mae.cornell.edu/research/microassem/CUAssembly.wmv

  6. Radio frequency identification device RFID tag as used by UPS http://videos.howstuffworks.com/howstuffworks/350-how-ups-smart-labels-work-video.htm

  7. What next • Using your text book draw out a table highlighting possible uses for nanotechnology, including Fluidic Self-assembly. • Explain possible applications for an RFID tag and reasons for its use.

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