How Do Wireless Networks Work?

Posted on February 25, 2012 by zhenax

Wireless networks work using radio waves instead of wires to transmit data between computers. That’s the simple version. If you’re curious to know what’s going on in more detail, then it’s all explained in this article.

Ones and Zeros.

I’m sure you know that computers transmit data digitally, using binary: ones and zeros. This is a way of communicating that translates very well to radio waves, since the computer can transmit ones and zeros as different kinds of beep. These beeps are so fast that they’re outside a human’s hearing range — radio waves that you can’t hear are, in fact, all around you all the time. That doesn’t stop a computer from using them, though.

Morse Code.

The way it works is a lot like Morse code. You probably already know that Morse code is a way of representing the alphabet so that it can be transmitted over radio using a dot (short beep) and a dash (long dash). It was used manually for years, and became a great way of getting information from one place to another with the invention of the telegraph. More importantly for this example, though, it is a binary system, just like a computer’s ones and zeros. Continue reading →

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3 Ways To Prepare Yourself For Windows Vista

Posted on February 24, 2012 by zhenax

As you may be aware, Microsoft is finally releasing the followup to Windows XP, called Windows Vista, in a few weeks time. As with previous upgrades for Windows, this will create some problems for people who want to upgrade their computers.

When a new version of Windows is released, there are usually some bugs and other issues that need to be ironed out. Microsoft has put Vista through extensive testing, but it is hard for them to test it for every possible situation because there are so many different computer setups and configurations.

If you’re thinking about upgrading your computer to Vista when it’s released, here are a few things you need to know.

Compatibility Continue reading →

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About Laser Printers

Posted on February 23, 2012 by zhenax

Like with many other things in the world of printing, laser printers have come a long way in the past few years. They have gone from being found almost exclusively in offices to being offered at $100 for a home user. Although they are better for a lot of people, some have a hard time imagining themselves buying a laser printer for their home. A lot of people have the idea that laser printers are just the big clunky machines in their offices where the toner cartridges cost a fortune. However, if you are someone who prints out a large amount of documents and is tired of always having to buy new black inkjet cartridges, laser printers can be the solution. Once you get past the initial sticker shock of buying laser toner cartridges, you will realize the numbers for an entry level laser printer versus an inkjet printer look something like this: Continue reading →

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A day at Barrows – RuneScape Reflections

Posted on February 22, 2012 by zhenax

The Barrows is a very popular, challenging and dangerous minigame in the massive online game called RuneScape. Many players make big money at the Barrows, but many – even the experienced Barrowers like myself – risk loosing millions worth of items due to bad luck or not being alert.

I am Barrowing a lot to get my mage and range levels to 99 (currently range 96, mage 97, combat 91). Barrowing is great mage training as the loots from the chest often provide me with the necessary runes to cast Magic Dart of Slayer (slayer lvl 55 required). I have so far done well over 100 runs in the Barrows, and have acquired more than 3000 boltracks and blood runes and about 8k chaos runes. I don’t keep count of gp or mind runes, but I am never out of stock of needed runes. Continue reading →

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Data backup Service!

Posted on February 21, 2012 by zhenax

Get your confidential data secured with the help of fully automated back up. Such automated back ups can eliminate the need for traditional tape based back up solutions. Data is stored in remote mirrored locations for resilience. If the back-up is too large to transfer over the available bandwidth, a snapshot is created and saved to a physical device, which is then uploaded to the back-up platform.

Data back up and Recovery!

The backup process starts after the installation and registration of backup software on the user’s system. The backup process automatically detects important data files that are located anywhere on your hard disk and creates a backup set. You can fine-tune your backup set by adding and deselecting files and folders. Continue reading →

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CCNP Certification / BCMSN Exam Tutorial: QoS Service Types

Posted on February 20, 2012 by zhenax

To pass the CCNP exams, you’ve got to master Quality of Service, and the first step in doing so is knowing the differences between the different QoS types.

Now this being Cisco, we can’t just have one kind of QoS! We’ve got best-effort delivery, Integrated Services, and Differentiated Services. Let’s take a quick look at all three.

Best-effort is just what it sounds like – routers and switches making their “best effort” to deliver data. This is considered QoS, but it’s kind of a “default QoS”. Best effort is strictly “first in, first out” (FIFO).

An entire path from Point A to Point B will be defined in advance when Integrated Services are in effect. Integrated Services is much like the High-Occupancy Vehicle lanes found in many larger cities. If your car has three or more people in it, you’re considered a “priority vehicle” and you can drive in a special lane with much less congestion than regular lanes. Integrated Services will create this lane in advance for “priority traffic”, and when that traffic comes along, the path already exists. Integrated Services uses the Resource Reservation Protocol (RSVP) to create these paths. RSVP guarantees a quality rate of service, since this “priority path” is created in advance. Continue reading →

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10 Tips To Buying Software Online

Posted on February 19, 2012 by zhenax

Buying software online can be tricky, especially if you are new to shopping via the internet. Whether you are upgrading an existing software package or looking for a specific program to install, the process will be a lot less complicated if you know what to look for.

Software Buying Tip # 1
Read customer reviews. Many popular online stores, such as Amazon, allow users to leave their comments about a particular product. Reading other customer reviews may help to make your decision easier because it gives you an idea of others who have experienced the product firsthand.

Software Buying Tip # 2
When considering any type of software, make sure that it is compatible with your computer. Most software requires a specific processor type, such as Pentium or Celeron, and a certain amount of free hard drive space. The reason is because, in order for software to function properly at quickly, the computer must be able to handle the application. By being familiar with your computer’s configuration, you will be able to select the right software.

Software Buying Tip # 3 Continue reading →

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All About Calling Cards

Posted on February 18, 2012 by zhenax

All sorts of businesses, profession or hobbies can benefit from calling cards. Whether you use them as a businessman, real state agent, doctor or any other means you can always be one step ahead of your colleagues or competitors when you have calling cards. Having a calling card is like packing all your business identity, contact information and logo into a wallet sized billboard.

Calling cards can be for corporate or personal use. When they are used for work purposes they are commonly referred to as business cards. Business cards are used for contact information and keeping in touch with your customers. Adding a business card to your marketing strategy is one way of assuring that you maintain communication with your customers. Whenever or wherever they need to contact you, reaching you won’t be too difficult because they know which number to call. Continue reading →

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3 Types Of Cheap Ink Cartridges

Posted on February 17, 2012 by zhenax

Your printer ink cartridges play as big a part in the final quality of your print as the paper that you use. If you use cheap paper, your print quality will suffer and in many cases the same is true of using cheap ink cartridges. This isn’t always the case, however. Discount ink can be bought in a few different ways and each of them has advantages and disadvantages.

Refill Ink

The first option for cheap ink is to refill your empty cartridges. This is generally the cheapest of all the alternatives, but it is also tends to wind up with the lowest quality prints.

It’ll depend on what brand and model of printer you have, but many of the newer printers are difficult to refill. It can also be quite messy because you’re dealing with bottled ink, trying to inject it back into the empty cartridge.

Recycled Cartridges

There are plenty of companies that recycle cartridges for you. They basically take the empty cartridges, clean them up, refill the ink and test them. Continue reading →

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10 Tips For Using Adobe Photoshop

Posted on February 16, 2012 by zhenax

Like a brush is to a painter an essential skill in the field of graphic design is Photoshop. The software offers increased productivity as well as flexibility. The features include aspects like file browser, vanishing point tool, smart sharpen filter, noise reduction filter, smart objects, as well as camera workflow enhancements. Photoshop offers professional photo editing features, digital imaging, as well as non destructive editing.

There are so many hidden features and insights to software, that it is often impossible to know them all.

1. There is a hidden option using which you can simulate bold and italic formatting styles for fonts that do not have these options. Click the button on the type tool option to bring up the character palette. Then select text and click the arrow in the upper right hand corner of the palette menu where faux bold and italics are present. However you will not be able to warp type when formatting has been applied.

2. One can quickly flip through blend modes while trying out effects by using the keys “shift+ to change to next mode and shift- to go to the previous mode.” When a painting tool is active this shortcut will change the blend mode of the painting tool. However, if anything is highlighted then the shortcut will not work. You will have press esc and then use the shortcut keys again. Continue reading →

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