7.USER LICENCES:
The informations and software that we find online may be protected by some form of license.Any software under this license is free software,which cannot be owner by anyone.Creative Commons Licenses allow us to give people certain rights for using content that we have created.You can get a CCL online if you fulfil the following conditions

6.EXCHANGING INFORMATION ONLINE:
It can be done quickly,easily and automatically by using Peer to Peer programs,such as Ares and BitTorrent.Althoungh many users exchange information online,we must be careful abaut the files and software that we download.There are legal restrictions that apply to many types of digital content.Other types of software are closed source,which means the source code can only be modefied by the progammer.
We can also differentiate between the following types of software:

• Free software:Anyone can use,modify,copy and distribute this software.It is also open source.
• Proprietary software:Users need special permission or a licence to use,modify,copy or distribute this software.
• Commercial software:The owner distributes and sells this software for a price.
• Freeware:This software does not cost anything.It can be copied and distributed,but it cannot be modified.
• Public domain software:The authors makes this software avaible to everyone at no cost.