Copyright 2005 Poingo.com
One of the great features of working with the web is the ability to download a file by clicking on a link. As most earthlings know, a link is most frequently visible as blue underlined text displayed on a website, or on an HTML email. Links can also be presented as hot spots on an image, or a button which can be clicked.
Sometimes when we click on links, we are magically transported to a new web page. Behind the scenes, we are actually receiving new files from a web server, and our browser software is "rendering" the files on our screen according to instructions contained in the files.
These new files could be served up by the same web server which served up the previous page, or with equal ease we could be receiving files from a totally different location, possibly from halfway around the world! Such are the wondrous ways of the web.
Other times when we click on links, we get a different experience. Our browser offers to download a file and patiently awaits our answer. When we accept and possibly tell our browser where to file the download, the web server sends the file to our computer and a download takes place.
The usefulness of this functionality is obvious. We don't always want to see the information painted on our screen, sometimes we just want to use it. Consider a spreadsheet file as an example.
If I want to share my spreadsheet with you, I can easily send it to you as an email attachment, but what happens if the file is too large? Chances are, your file attachment could hit a bottleneck somewhere in your, or your recipient's email system and may never deliver.
However, if I send the file as a download, email system bottlenecks are bypassed and the pipe is wide open. Here's how it works:
1. First, I upload my large file to a web server somewhere.
2. Then, I place a download link to that file in my email to my pal.
3. When he receives the - continued below ...