Worldstart Computer Tips 11-08-2011
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Have you ever wondered what your computer goes through when it’s booting up each time you restart your computer? Sometimes computers will start up so quickly, but other times, they drag, don’t they? Well, every time a computer is booting up, it has to go through what is called a POST test. POST stands for Power On Self Test and it’s just a little personal start up test for every computer to make sure it meets all of the system requirements, etc.
There are actually 10 steps in the POST, with the first one testing the power supply to make sure the computer is turned on and that it meets its reset signal. The second step checks to make sure the CPU (Central Processing Unit) can execute instructions. The next two steps are used to ensure that the BIOS are readable.
Again, the next two steps are devoted to the CMOS (Complementary Metal-Oxide Semiconductor) to make sure they are readable. The seventh step tests the CPU to make sure it can read all the different forms of memory, like the memory controller, the memory bus and the memory module. Next, your computer’s memory is tested to make sure it is operational and that it can be read and written, as well as, capable of containing the POST code. The last two steps deal with the I/O bus and controller. They need to be accessible and be able to write and read from the video system and to read all of the video RAM.
If your computer happens to fail any of these steps, an irregular POST will be recorded. The irregular test is known to you by a beep code and it may often result in you having to restart your computer.
There you have it, the basic steps to a system start up test. At least you now know what your computer goes through while starting up and you have an idea of what might be going wrong if your computer ever fails a proper boot up.
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In part one of our series about 32-bit and 64-bit processors, we defined basic terms. This segment will deal with processing speed, memory, and how the balance of hardware and software affects performance.
Processing speed, referred to as clock speed, is generally measured in megahertz (MHz) which amounts to one million cycles per second, or gigahertz (GHz) equaling one billion cycles per second.
A computer’s architecture is a significant contributor to that processing speed, so CPUs (computer processors) with the same clock speed may not perform functions at the same rate. While a fixed number of clock cycles is required for each command (instruction), a faster clock will execute more instructions per second, and the machine will perform those instructions more quickly.
However, clock cycles (or clock ticks), like so many other terms in this bewildering lexicon jungle, is a term with multiple meanings. On one hand, a clock cycle is as described above, the relative speed of a processor, but it also refers to the internal system clock, which always runs at 66 MHz (66 million clock ticks per second). So, more powerful CPUs can execute instructions more rapidly than their less sophisticated counterparts, while still displaying the same number of units per cycle.
While the clock speed of the CPU is the primary indicator of processing capability, RAM (Random-Access Memory) also plays a significant role in performance. When a CPU requests information from the hard drive, it’s put into RAM, where it can be accessed with greater efficiency. But, if the memory (RAM) isn’t sufficient, the information may have to be returned to the hard drive before the next request can be answered, thereby slowing overall performance.
Hardware and Software
Hardware and drivers (the software that controls the hardware) must match the device’s system type, and this should be a primary consideration when upgrading a 32-bit system. For information about how to check device driver availability for 64-bit, click here. For a more in-depth look at the processors themselves, see the article, Switching Processors. While some software is system specific—antivirus programs are good examples—many will run effectively on either system type. To learn about software compatibility, go to either the Windows Vista Compatibility Center, or the Windows 7 Compatibility Center.
What all this means is that, with each operation, 64-bit processors can handle bundles of information that are twice the size of those processed by 32-bit systems, and the speed at which these bundles are delivered is determined by the overall balance of system resources (RAM, processors, etc.). In researching this article, I was directed to an analogy of a two lane highway that had been converted to a four lane highway to relieve bottlenecks. But, while that’s a good comparison, the benefit is more than just a method of efficiently moving traffic. 64-bit is not just an increased amount of data per bundle, it’s also higher quality data, as images, audio, and video files comprised of 64-bit elements are richer, with more depth and texture, than those made up of 32-bit elements.
The final article in this series, How to Determine if a System is 64-Bit Capable, will explain how to tell whether a system is 32-bit or 64-bit, and whether upgrades are possible (or practical).
I hope this has been as enlightening to read as it was to write.
MS Office: Close, Move and Re-size Task Panes Using Your Keyboard
Here’s a cool set of keyboard commands I stumbled upon today that have to do with managing those task panes that seem to pop up in our daily work while using MS Office.
Get the rest of this tip here!
If you are a good photographer, but it’s only a hobby, you can still make money by selling your work to stock photo sites and art galleries. But there’s yet another avenue that brings in the dough and also gives you good publicity. Who knows, it might even prompt you to become a full-time photographer, too. Just follow these guidelines and you could end up winning more than one photography contest.
I discovered this site because I was looking for the Nestle Tollhouse chocolate chip recipe – I had used half the chips for some brownies and threw away the original packaging – and this site came up in my search results because it had the recipe as well as experimentation with the recipe. You can find that here. The author of the site, Michael Chu, tested how the flour affects the recipe. I hadn’t even checked out the Cooking Tests section, and I was hooked!
Navigation is easy! You can use the menu at the top of the page and check out the following sections:
Books – here you’ll find interesting cookbook reviews.
Cooking Test – here you will find awesome experiments in cooking! If you like bacon, you have to check out the bacon tests!
Dining Out – here you’ll find restaurant reviews.
Equipment and Gear – this section is devoted to explaining what different pieces of equipment do, what your options are as a cook in using them – for example, what kind of cutting board to use or what is the difference in the materials that cutting boards are made out of?
Kitchen Notes – this section is like a cooking encyclopedia. Here you will find cooking terms defined and explained.
Off Topic – here you will find information that that is off topic, or only loosely related to the cooking information on the site. I liked this section and the different topics it covered. I especially liked the Iron Chef America topic (one of my favorite TV shows) where Michael talks about how he got hooked on Iron Chef!
Recipe File – this is probably the section that you are looking forward to the most. Check out the recipes showcased here!
Sous Vide – if you watch any competition cooking television (Iron Chef America, Top Chef, Top Chef Masters, etc.) you have probably noticed at some point or another a chef cooks something Sous Vide. Well, what is Sous Vide? And how can you set up your own Sous Vide setup at home? Check out this section to find out!
Test Recipes – here you’ll find a collection of recipes that Michael has tested out in his kitchen What I love about this section is that not only are the recipes educational, but the comments on the recipes are usually just as in depth as the test recipe itself. I love a good discussion. I think I’m going to try out the marshmallow recipe from this section.
And that’s the just the tip of the iceberg on this site, so make sure you check out the featured sections on the main page and whatever else might take your fancy!
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So, have you ever noticed that CD's don't sound quite as clear when playing them in your computer as they do on your stereo system? And if you've ever watched a DVD on your computer...I'm sure you'd agree the sound quality is not the same as it would be coming from your TV.
That's because the sound card that comes in your computer is a very basic run of the mill sound card, which doesn't produce the best audio.
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I could have swore that I put on an entire set of surround sound speakers to my laptop!!
You will be hearing everything the way it is suppose to sound versus that slightly cloudy, fuzzy mess that comes out of your typical computer speakers.
With this adapter you'll convert that crappy analog signal into a hi-def, 3D digital signal...how that for an incredible listening experience?
Better yet 7.1 is the most advanced listening technology you can find,it is more advanced than your standard DVD 5.1 audio! Now you know, you will be getting the most elite listening experience with this awesome adapter!
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Ready for November? Yeah, neither am I. However, time marches on and we have some new wallpaper for your to check out :)
All the desktop wallpaper below is 100% free. Head on over and check it out!
It can all be found here:
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Tuesday, 8 November 2011
Computer Tips [ What's Causing Your Slow Start Ups? - 64-Bit Vs. 32-Bit - Your Questions Answered + The Secret To Winning Photo Contests ] 11/08/2011
Posted by Admin at 09:30