If you, for example, install multiple media player applications on your Android device, you’ll find that Android will give you the choice of which application to launch by default when you open a media file or document. However, you may later want to change this default setting.

To do so, go to Settings > Applications > Manage applications and then press the "All" tab. Choose the application that you previously selected as default, and scroll to the section "Launch by default" and press the "Clear defaults" button. Next time you open that particular type of file in the future, Android will prompt you again to choose a new default app.

The most popular tablet, for now, is Apple's iPad. It's hard to go somewhere and not see someone carrying one around these days. One of the reasons for it's continued success is that some models can connect to data networks, providing users with Internet access pretty much anywhere. A problem with this is that not all wireless providers offer the same level of coverage. So, how do you tell if your local area is covered? Or if there will be coverage when you travel?

Here's two ways you can figure out the areas covered by various wireless providers so you can get the most out of your data connection on your iPad.

Within the USA If you live in the US, you can install an app called Coverage. This app is a map of the United States that shows the network coverage of the major network providers - AT&T, Verizon, Sprint and T-Mobile.

When you install and open the app, you will be presented with a map and a panel where you can search for cities or your current location. You can also select which networks to show. The map covers all of the US including Hawaii, Alaska, US Virgin Islands and Puerto Rico, which makes it ideal for business users who travel throughout the US.

Because this app doesn't require an Internet connection, the data isn't 100% accurate, but from tests, it looks to be accurate enough for most users. USD$2.99 from iTunes.

Rest of the world If you aren't in the US, don't worry. Check out OpenSignal, a website that keeps an up-to-date map of wireless coverage around the world. You can search for 2G, 3G and 4G signal strength using an address or by selecting a country and city.

The map displays what OpenSignal calls a heat map - it's the signal strength in the area you are looking at. It will also show the NetworkRank based on the strongest signal of the providers. For example, select Sydney as your city and Australia as your country, and zoom into the North Sydney. You'll see that the map is covered in a haze that goes from blue to red. Blue indicates weak signal strength, while red represents strong. You'll also notice that Telstra Mobile is the strongest provider in this area.

This site can help you pinpoint which carrier to go with, based on your local area. It is also a good way to see if your provider has signal where you may be travelling.

A word of warning If you do have a data plan for your iPad, and plan to be traveling outside of your current location, it would be a good idea to consult the map or OpenSignal before you leave. There has been many stories of iPad users leaving their data plan on while traveling out of state or country, and receiving shockingly high mobile bills.

This is because if you leave your iPad connected to Data, it will connect to any compatible network e.g., AT&T users in the US will automatically connect to Rogers Wireless if they go to Canada. This is commonly referred to as roaming, and many networks charge extra for this. When traveling, it may be a good idea to just turn off your iPad's data connection.

You can turn your data connection off by:

1. Opening your iPad's Settings app by pressing the icon with the gears.
2. Tapping on Cellular Data which will be located on the right-hand menu bar.
3. Sliding the bar beside Cellular Data to Off.

If you are using Internet Explorer and Windows 7, you may have noticed that when you mouse over an IE browser window, a preview of the open tabs in the browser is shown. While this is useful to give you an idea of the sites you have open, it can get annoying if you have multiple tabs open at the same time. If you would prefer to disable this feature, you can.

Just go to Tools > Internet Options (in the upper right-hand corner of the browser) and then click on the "Settings" button in the window that pops up. In the list of Tabbed Browsing Settings, uncheck "Show previews for individual tabs in the taskbar." Click on OK and you should be good to go.

A very useful feature in Microsoft Office is called "AutoRecover", which automatically saves your document at specified time intervals so that in case of an application or system crash, Office can recover its latest version.

By default this is set to 10 minutes, but you can change this easily by clicking on the Office button within the application, and then clicking on the "Word Options" or "Excel Options" (or other application) button in the lower right hand side of the window. Go to the "Save" section and look for "Save AutoRecover information every…" and change the settings there. Be sure to click "OK" to save your preference. A word of caution: setting the interval at very short timespans such as every 1 minute can slow down your computer with frequent writes to the hard disk. Try a number between 5 minutes to 10 minutes first.

Leaving your computer for a short time but don't want anyone peeking at your desktop or files? Simply lock it. When you lock your desktop, anyone who wants to use it will have to log in using their username and password.

One way to do this is to press Ctrl+Alt+Del and then click on "Lock Computer." A quicker way is to press the Windows logo key and the L key.

In Microsoft PowerPoint 2010, you can set an animation to trigger when you click on an object. This is a simple way to add and control interactivity to your presentation. To add an animation trigger, select an object that already has animation applied to it.

On the “Animations” tab, in the “Advanced Animations” group, click “Animation Pane” and then select the animation that you want to trigger. Back in the Advanced Animation group, click and hold on “Trigger” and select “On Click of” and select the object for which you wish to trigger the animation when clicked.

With Windows 7, there are easier and faster ways to rename multiple files in one sweep. The first way is to click on a file's name and rename it as usual, then press the "Tab" key to access the next file in the list.

Another way is to select multiple files (press the Ctrl key or Shift key and select the desired files), then right click on the first file and choose "Rename" to give it a new name. The rest of the files will be renamed with the same name. For example, if you name the first file "image", it will become "image (1)" followed by "image (2)" and so on.

Google Chrome allows you the option to search within a specific site. First type the web address of the site you want to search in the address bar, and then press the "Tab" key.

If Google Chrome has a record of the site's search engine, you’ll be offered the option to search within that site only. Try it with sites such as LinkedIn, Bing, and Yahoo.

In Windows, there are various options for configuring the speed, look, and behavior of your mouse pointer to exactly the way you want it.

To do so, click the Start button, and then click Control Panel. Click Hardware and Sound, and then under Devices and Printers, click Mouse. In the Mouse Properties box, click on the Pointers and Pointer Options tab, and adjust the options to change the shape and size of your cursor by changing the "scheme". In the "Pointer Options" tab, you can change the speed, visibility, and other characteristics of your pointer. You can add pointer trails, automatically snap the pointer to buttons and dialog boxes, and so on. These settings are especially handy when using small screens such as on laptops or netbooks.

There are many tools that business managers will consider to be an integral part of their job. One tool most will agree on is the computer. Simply put, many of us would not be able to do our jobs without them. While they are indispensable, many users don't know much about their trusty desktop or laptop. There is no doubt that the modern computer is a complicated machine. However, it could help to know a bit about the hardware you use on a daily basis.

Here's a basic overview of the seven essential hardware components of the modern computer that businesses rely on. These components are found in nearly every computer, and now many tablets and smartphones too.

1. Motherboard Think of the motherboard as the backbone of nearly any technological device. It holds all the major components of the computer, including the hard drive, processor, memory and peripheral ports like the USB. Most motherboards in computers, and to some extent laptops, are called expandable. This means that you can replace components as long as they are compatible. For example, you can take out a hard drive and replace it with another that has more storage capacity.

If you can't take parts out, you may see the term mainboard used. This term is usually applied to devices like TVs, washing machines, refrigerators, and so on.

2. Networking cards Networking cards, or network interfacing cards, may be separate cards or integrated into the motherboard. Their purpose is to provide a way for your computer to connect to the network and Internet.

Many new computers will have the network card integrated into the motherboard, along with other components. If you own a laptop, you can connect to Wi-Fi networks through a Wi-Fi card which is usually close to the outer edges of the device. Most desktops don't have this card, but you can purchase them if you want to be able to connect to Wi-Fi.

3. Graphics card A graphics or video card can come in two varieties - integrated or expansion. An integrated video card is connected directly to the motherboard and is usually found as a part of the processor. An expansion video card is a separate card that is connected to another part of the motherboard called an expansion port. The job of the video card is to create the graphics and images that can be shown on a monitor. Without one of these, we would not be able to visualize the data, and computers would be useless.

4. Processor The processor - also known as a Central Processing Unit or CPU - is the brain of the computer. Its job is to carry out the instructions of computer programs that are stored in the computer's memory.

The speed of a processor is measured in MHz or Megahertz. This measurement indicates how fast a processor can read electrical pulses. For example, a 100MHz processor can read 100,000,000 pulses of light in one second. As a reference, most mid to high-range computers have processors with speeds around 3.0GHz.

5. Hard drive The hard drive is where programs and files are stored. More traditional drives are called Hard Disk Drives (HDD) and are comprised of a series of magnetized disks which store the data. These disks spin under a magnetic arm which can read and write data.

Newer hard drives are called Solid-state Drives (SSD) and use electrical circuits to store data. These are much faster than traditional HDDs and are starting to be found in more and more computers.

6. USB ports The Universal Serial Bus, or USB, is a standard that covers a certain type of cable, connectors and communication. It is a standard way for computer components like mice, keyboards, phones, etc. to be connected to the computer. Nearly everything that is not a physical part of the motherboard or internal computer is connected using a USB connection.

The cool thing about the USB is not only does it allow you to use your computer as a communication device, but it also allows the connected device to draw electrical power from the computer, essentially transforming your computer into an electrical outlet. That's why you can charge your phone, or run an external hard drive simply by plugging it into your computer's USB port. This standard has become so popular that many computers now come with multiple ports - some with as many as eight!

7. Monitor ports Computers are great, but without monitors, they would be largely useless for everyday use. Monitors come in many sizes and varieties. Newer monitors can connect to your computer through HDMI or VGA ports. HDMI - High-Definition Multimedia Interface - is a newer format that can display high-definition images, while VGA - Video Graphics Array - is typically found in older monitors.

As technology advances, you will see fewer VGA monitors and connections in use, with many manufacturers offering monitors that only use HDMI.

This was just a basic overview of the essential components of a computer, if you would like to learn more about the machine you use on a daily basis, please contact us. We would be happy to sit down with you and give you a more detailed tour of the inside of your computer.