Definitions.
Document: In computer science is a computer file that is not an executable file and contains data for use by applications.
Data: Numerical or other information represented in a form suitable for processing by computer.
Exporting: To send (data) from one program to another.
Importing: To receive (data) into one program from another.
Exporting and importing is not complex but is a very useful tool. Before, it was very difficult for example to watch a celphone video in the television, whenever you wanted to do that, it was necessary that you bought a lot of wires an complicated devices which could help you to do the task.
In our days we have this cards that we insert into our computers (sometimes computers have them integrated), and of course they do this jobs without any problem.
As you remember, at the beginning of this class we started talking about internet. WHY? simple, because it was the first time that somebody (Tim Berners-Lee) figured out a way to share information without having limits of format.
However it's an amazing invent, people needed some device that they could use in order to transfer data from from machine to another, for example:
- Showing presentations in the TV made in powerpoint.
- Sharing files from celphones to computers and from the computers to other electronical devices.
For further information I recommend you to visit the post in this blog with the title All is information.
