The Advantages And Disadvantages Of ADSL And How To Get The Most Out Of It.

ADSL stands for an “Asymmetric Digital Subscriber Line” and is a modified form of the sort of DSL high-speed internet that has been in use in Australia for decades. It is intended to improve the ability of digital signals to be sent over traditional copper cables, in order to increase the amount of bandwidth available for downloading.

This is done at the cost of upload speed, which is significantly decreased. However, most home users who wish only to browse the net do not need to use a lot of upload bandwidth.

In fact, only web servers need to have access to high upload speeds, and so, using ADSL in a home capacity maximizes the benefit of traditional DSL when it comes to home use.

All DSL lines work by sending digital signals over a traditional phone line, allowing for more information to be sent than through the traditional analogue means, such as those used by telephones and modems.

One of the advantages of this method is that there is so much “space” left in the line, in terms of bandwidth, that a line could be used both to transmit an analogue phone call and serve as a DSL connection. This eliminates the need for additional lines.

In order to boost the amount of space available for download, an ADSL unit uses what is known as a “splitter” to diversify and prioritize the sort of connections and digital information being sent down the line.

The digital information is then processed by the phone company and sent directly to its servers, bypassing most of the phone system and enabling for the fastest connections physically possible through traditional copper land lines.

ADSL’s primary disadvantage is that it, like all DSL connections, is limited by the amount of cable which separates the modem from the nearest phone hub. If the information needs to travel only a short distance, say two or three kilometres, then the “loss” of information inherent in sending digital signals down old-fashioned copper lines is minimal.

DSL is generally not practical if the distance to the nearest phone hub is more than four kilometres unless the wires are of a particularly high gauge.

For people who live in a highly populated area, or near a major phone hub, they will often find that ADSL is not only much faster than traditional modem connections, it is much faster than alternatives, such as cable or satellite.

As previously mentioned, ADSL further speeds up DSL by opening up more of the line’s bandwidth for downloads, which is what most home users primarily require.

Existing ADSL users will find that there are many methods by which they can maximize their connection. Obviously replacing the copper cable or moving closer to a phone hub is not a typical response, nor is it practical nor is it affordable as an option for most users!

However, it is possible to upgrade one’s ADSL connection in many cases simply by installing better hardware. The amount of bandwidth accessible through a DSL line is limited by physics, but the manner in which that bandwidth is divided is entirely dependent on a user’s hardware and software.

Every year, better and better splitters are developed. These allow for an ADSL user to more carefully manage their upload and download speeds. Another way to maximize the speed of an ADSL connection is to avoid multiple downloads and instead download one item at a time.

ADSL connections degrade when they have to download from multiple contacts at a time, and so it is possible to download things faster if they are downloaded one after the other instead of all at the same time.

E-commerce Explained

E-Commerce is way of doing business transactions electronically.  The word electronically in this context means that in E-Commerce business transactions gets completed via electronic medium. This electronic medium mostly uses computers on Internet. The transaction may also be done through a mobile device, smartphone, iPad, Kindle, Android Tablet then it is mobile commerce. Mobile commerce is a subset of E-Commerce.

Several simple example of E-Commerce includes:
An individual purchases a book on Internet
An individual withdraws funds from ATM
A retailer orders merchandise using an EDI network or suppliers extranet
An individual or business calls a toll free number and orders the requirements using the seller’s interactive telephone system.
A manager orders office supplies for his office using Internet on a commercial website set-up for the seller.
An individual reserves a travel ticket or a room in a hotel using the Internet by surfing the related website using a few clicks of mouse.

A Complex examples could be:
A student visits the website of a bookstore on Internet and makes inquiries about the availability of an out of stock book. The bookstore employee receives the the enquiry and sources a digital copy of the book and responds to the enquiry with the  option and costs. The student agrees and uses a payment processor to pay for download and the book store employee gives the student a key to download the digital book. The bookstore employee harvests the students contact details and areas of interest and adds to a database which will email customers when books of possible interest arrive in the store or are put on sale.

E-Commerce transactions are great for small business as well as large because payment is made before goods are made available for digital download. The only things you should be aware of is:

a) Ensuring that your payment processor links are set-up properly

b) Ensuring that your server for the sales page and downloads is not going to crash because of  bandwidth or data transfer issues with your hosting company, or limitations in your own server set-up.

c) Ensuring that money back guarantee’s are honoured in a timely and friendly manner.

Remember, when you enter the world of digital downloads and E-Commerce that you expose yourself to the wiles of hackers and internet criminals. Ensure you have updated, anti-virus and malware plus I recommend the Avast Internet Security Suite, they have a free program if you want to check it out here http://www.avast.com/index, but any of the numerous anti-virus programs out there will provide you with protection, if you keep it up to date.  This precaution will help protect your financial information from others, who have no right to it. You can play your part as well by changing your passwords to critical accounts and sites.

To facilitate E-Commerce requires you to possess  an attitude that is open to change, innovation etc. Security of information is good if you take the precautions mentioned above and the quality of the product can usually be ascertained by going to forums that discuss the product or products of that type.