Differences between the types of software

   
    We can aalso 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 permision or a licence to use, modify, copy or distribute this software.
• Commercial software: The owner distributes and sells this sofware for a price.

• Freeware: This software does not cost anything. It can be copied and distributed, but it cannot be modified.
• Public domain sofware: The author makes this software avaible to everyone at no cost.