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Has personal computing hit a progress wall? PDF Print E-mail
Written by Fred Norris   
Monday, 19 July 2010 17:25

The promise of cheap powerful personal computers has for the most part been filled. For those that are not familiar with Moore’s Law it was an observation made in 1965 by Gordon Moore, co-founder of Intel, that the number of transistors per square inch on integrated circuits had doubled every year since the integrated circuit was invented. Moore predicted that this trend would continue for the foreseeable future. In subsequent years, the pace slowed down a bit, but data density has doubled approximately every 18 months, and this is the current definition of Moore's Law. Most experts, including Moore himself, expect Moore's Law to hold for at least another two decades. That being said we have computers that are extremely powerful when compared to only a decade ago, and those were much more powerful than they were a decade before that. With that much power have advances in use of that technology when compared to progress of that more powerful hardware keep pace?

 

Let’s digress for a moment. In the movie 2001 a space odyssey, and even the follow on 2010, we had computers that were capable of what appeared to be thought. They could hold a conversation with us, make decisions, take action, etc. Other predictions had android type robots in our homes doing daily tasks, watching over us, helping us plan our lives etc. While the hardware has continued to double in power our use of that and the advancement of the application of that technology does not seem to have kept pace.

 

Yes the graphics are better, the computers are faster but when you get to the heart of it the progress in application or use of personal computers has really stagnated for the last decade. Look at where we were in 2000 with popular use of computers. At work we had office applications like word processors, presentation programs, scheduling software etc. In the factories we had robots taking over repetitive tasks, automating much of the factory assembly lines…in the last ten years this has not really changed all that much, even thought the computers are much faster and more powerful.

 

We all seem to think it is great that our video games look so good today but in reality the play itself has not changed that much. They look slicker but the core of the games themselves have not changed that much. So does Moore’s law apply to the use of the technology keeping pace? It appears not. Where an application used to fit on a 1.5 meg floppy it now needs gigs on a DVD. Instead of writing efficient code we now use megs, or gigs of executables to essentially do the same thing. There is so much memory and computing power it seems we by and large have forgotten how to use what we have efficiently.

 

For now it appears that one prediction of the future is holding true and that is of ubiquitous computing. It was predicted that cheap integrated chips would lead to mini computers being all around us, so much so that we would not even be aware of them. That indeed has happened. You car has many computers, home alarms, TV, cable box, even your toaster may have a computer in it. These do make our daily lives better in invisible ways. When you drive your car the perfect mix of fuel gets to the engine thanks to computers, you also get better fuel mileage, and of course…your toast is perfect. But is this meeting the promise of a great future on computing…hmmmm..

 

We are getting to the point where the code for programs is so large, so complex that it takes teams of people to pull it all together, gone are the days of the code writer working on his own, and so to at some point may be gone the days of the teams of people. They will be replaced by the program that creates the programs. To some extent that has already happened but there will come a time when we will need to create programs so complex that only a program will be able to create it. When that happens we will be one step closer to a true revolution in computing. The computers will create the programs for themselves and at some point this could lead to what appears to be, or may actually be, self awareness. Once that happens we will then have a real issue to deal with. Will we have the moral right to turn something off that is self aware and does not want to be turned off? But that is another article.

 

When will we start to see real changes in the progress of applications? That’s hard to tell. It could happen over night with the advent of cloud computing, or it could take decades, or tens of decades. Sooner or later it will happen though. In our lifetimes I do not think we will have a real conversation with our computers. Technology will in the not to distant future be able to recognize our face, ask us questions, understand our answers, but this will be not much more than programmed response and not thought.

 

As excited as we all are by the power of our iphones and PCs these are really not much smarter than a toaster, and a long way from a Moore’s law like exponential jump in application progress. Today we can enjoy the technology we have and the way it helps our lives but on some level it seems that we have not made the leaps in the use of that technology that was the promise in the early days of computing.

Last Updated on Monday, 19 July 2010 17:28
 
DIY SOLAR Collector PDF Print E-mail
Monday, 15 February 2010 03:34



This is a great DIY Solar water heater project. Solar water heat may not be a sexy as solar electricity but it produces a lot more energy savings for the dollar and is something everyone can do.
1. The collector is easy to build using ordinary tools and skills -- its a fairly easy DIY project.
2. The collector is about 1/5 th the cost of commercial collectors ($140 vs $700 to $900 for a 4X8 collector)
3. Materials to build the collector are locally available -- the cost and hassle of shipping large assembled collectors is avoided. Shipping on a commercial collector is more than the total cost of materials for the PEX collector!

Last Updated on Monday, 15 February 2010 03:54
 
Wind power cheaper than regular power! PDF Print E-mail
Saturday, 13 February 2010 03:27

For residential customers in the D.C. area it is now CHEAPER to buy electricity from a 100% wind generated source than from the standard electrical company. This marks a real turning point in the struggle to make clean energy affordable for the general public. Baltimore Gas and Electric rates are now ~12.8 cents/kwh To but the same power from Clean Currents it is only 11.1 cents/kwh! While this is a savings of $10-$15 per month for John Q. Public that pails when compared to the benefit of that power being 100% WIND generated!
Maryland Pepco and BGE residential customers can now sign up for wind power at rates that are below Pepco's and BGE's rates, Clean Currents announced today. This means that people can support a cleaner environment while saving money on their electric bill. Clean Currents President, Gary Skulnik said, "Protecting the environment has never been easier. People can save money while buying wind power. This great option is only available because we have customer choice in Maryland, which allows customers to choose green power from companies like Clean Currents."Clean Currents wind energy product, Chesapeake Green (C-Green) is available for fixed price contracts of one or two years, 50% or 100% wind. The rates range from 11.1 cents/KwH to 11.8 cents/KwH (two years, 100%). Current BGE and Pepco rates 11.814 cents/KwH and 11.76 cents/KwH respectively. This summer, they are going to 12.64 cents/KwH (BGE) and 13.159 cents/KwH (Pepco).
To learn more read their article:

  • CLEAN CURRENTS web site.
  • Last Updated on Monday, 15 February 2010 03:55
     
    DIY Wind Turbine PDF Print E-mail
    Monday, 15 February 2010 03:42

    This as a cheap DIY wind generator that almost anyone can build if you live in an area with a steady wind.

  • How I home-built an electricity producing Wind turbine
  • Last Updated on Monday, 15 February 2010 03:54
     
    Mars Spirt starts to move again PDF Print E-mail
    Saturday, 23 January 2010 20:58

    The rover team has begun driving Spirit backward as next technique for attempting to extricate the rover from the sand trap where it is embedded. The first two backward drives produced about 6.5 centimeters (2.6 inches) of horizontal motion and lifted the rover slightly.

    Spirit performed the first backwards drive (toward the south) on Sol 2045 (Jan. 14, 2010). Until then, all drives since extrication attempts began two months earlier had been with forward driving, with Spirit facing northward. The rover first entered its present location driving backward in April 2009. The backward driving in recent days includes the additional technique of steering the wheels side-to-side before performing each step. The hypothesis for the wheel steering is two-fold. The process clears out material in front of the wheel and allows material to slough off the face of the wheel trench and provide traction under the wheel. Also, the flat surface of the wheel's side "kicks" against loose material, like a swimmer's frog kick or breast stroke, to provide some push. This Sol 2045 drive included enough wheel rotations to move the rover backward about 30 meters (98 feet) in six steps of 5 meters (16 feet) each, if the rover were in a situation with good traction. However, as Spirit is in a sand trap, the drive moved the rover backward a total of just over 3 centimeters (1.2 inches) and raised it in altitude just over 1 centimeter (0.4 inch). This is the first time the rover has climbed since extrication attempts began.

    Northerly tilt also improved by just over a degree. The explanation here is that the rover's rear wheels are climbing, raising the back of the rover. Images from the rear hazard avoidance camera confirm this. A tilt toward the north would be favorable for energy production in the coming Martian winter, as it would gain more sunshine on the solar array.

    A second backward drive was commanded on Sol 2047 (Jan. 16, 2010). It was also six steps of 5 meters backward with the steering "frog kicks." The rover moved about 3.5 centimeters (1.4 inches) backward and climbed 0.3 centimeters (0.1 inch). However, this time the northerly tilt deteriorated by over a degree, undoing the prior drive's improvement. The explanation here is that the rover yawed counterclockwise, swinging the angled solar arrays away from north. But the rear wheels continued to climb, suggesting that the middle wheels are gaining traction. The rover is now about 3.5 centimeters (1.4 inches) south of the point where it started extrication two months ago, meaning the backward driving has already covered all of the distance achieved with forward driving and then some. Spirit is still down about 3 centimeters (1.2 inches) in altitude since extrication started. It is important to remember that the right-rear wheel is still non-functional, along with the right-front wheel.

    On Sol 2050 (Jan. 19, 2010), Spirit was commanded to drive further backwards. Partway through the drive, the rover's left middle wheel stalled. Activities planned for coming sols include getting more diagnostic information about that wheel stall. Even with four working wheels, Spirit would have a very difficult path to extrication. And the rover needs a much better northerly tilt to assure winter survival.

    As for other techniques to consider for extrication, the rover team has examined the two options that would use the robotic arm: pushing with it and re-sculpting the terrain by the left-front wheel. The assessment of pushing with the arm reveals that only about 30 newtons of lateral force could be achieved, while a minimum of several hundreds of newtons would be needed to move the rover. Further, such a technique risks damaging the arm and preventing its use for high-priority science from a stationary rover. The other technique of re-sculpting the terrain and perhaps pushing a rock in front of or behind the left-front wheel is also assessed to be of little to no help and, again, risks the arm. There is also a large risk of accidentally pushing the rock into the open wheel and jamming.

    Last Updated on Monday, 15 February 2010 03:55