Charles Babbage is widely credited coming up with the idea of programmable computers. His idea was sound but the supporting technologies needed to make programmable computers a practical reality were not yet available. Now fast-forward to the mid-20thcentury. In the 1940s and early1950s, the work of von Neumann, Eckert, Mauchly and others resulted in programmable computers using vacuum tubes as the basic building block for making binary decisions (current flow allowed=1, current flow blocked=0). Vacuum tube computers were huge, expensive devices that filled rooms, or even floors, of a building. In addition, they generated massive amounts of heat.
In the 1950’s, the transistor came into widespread use as the basic building block for binary switching. It was orders of magnitude smaller than the vacuum tubes it replaced and consumed a lot less power. Therefore, programmable computer designers could package much more processing power per square inch/cm into an equivalent amount of space as was consumed by the old vacuum tube models. In addition, instead filling up rooms, computers now shared rooms with other computers.
In the mid-1960s, integrated circuits began to appear in products and eventually resulted in the “computer on a chip” that contains millions of transistors, again making orders of magnitude strides in both processing power per square inch/cm and power consumption.
So do we really have new ideas? Or, do advances in technology act as enablers for ideas that may have been floating around for centuries?
Think about this while you are sitting in front of your von Neumann/Eckert/Mauchly/Babbage machine.
While attempting to get my site to pass the W3C validation for compliance with the XHTML 1.0 Strict Standard, I encountered a classic “Theory versus Practice” issue. The target attribute available in prevous versions of the standard is no longer valid. This is a well-known issue and Google will find many hits on the subject. Here’s one example that more or less explains the rationale for the target attribute’s demise.
In case you are wondering why I’m making such a big deal of this, I’ve been using the target attribute for years now to control whether a new page loads on top of the current page or the browser opens a new window to display the new page. I’ve used the convention for years now that if the new page is in my domain (i.e., part of my site), I load it on top of the current page and if the new page is from an external domain, I open it in a new window.
This is especially annoying to me now that browsers with page tabs are available (e.g., Firefox) that allow one to take maximum advantage of the now “banned” target attribute.
I guess the old phrase “Standards are written to be Broken” I first heard years ago is still valid!
I’ve been meaning to figure out how to use WordPress widgets to make administration of the site’s sidebar contents a little easier. Well, today I finally burned a few brain cells and after much trial and error, figured out how to work with widgets…and actualy wrote a new one myself. The really neat thing about widgets is that once you get them working, you can switch your site to another theme and the widgets keep on trucking…they are reusable in the true sense of the word ðŸ˜‰
And, I’ve also been meaning to update the site’s look and feel for a long time now, so did that too. I’m using a theme called Barthelme, which was originally done by a fellow named Scott Wallick. I’ve made a few minor tweaks to it to meet my needs but what you see here is basically the result of Scott’s fine work. It is a very well designed theme and a big thanks to Scott for making it available to all via the GPL. You can learn more about Scott here.
Let me know what you like (or dislike) about the new look here at HR’s halfVAST Blog.
Well, I survived one more Jamboree in the Hills. But did get a little “Mud on the Tires.” It rained quite a bit last Thursday and the parking area was a sea of mud. The locals were making lots of money pulling cars out of the muck. Lucky for me that I have a 4-wheel drive pickup truck!
If you are interested in seeing pictures from this and prior year’s Jamborees, take a look here .
Leaving this Thursday on my annual pilgrimage to the Jamboree in the Hills (JITH) in Morristown, OH, which is about 15 miles west of Wheeling, WV.
Once there, we all sit around on a hillside, consume copious amounts of beer and occasionally actually listen to the music. This year marks the 30th anniversary of the JITH and will be the 23rd straight year I’ve been there.
I guess old habits are hard to break, or maybe I am just plain stupid for wanting to sit around in the hot sun drinking beer with country music blaring away in the background!
Two Hundred and Thirty (230) years old today! May you have many more…