Ch 26

1. intellectual property rights

1.1. trademark

1.2. patent

1.3. design

1.4. closed source

1.4.1. piracy

1.4.1.1. privated software

1.4.1.1.1. distributed via websites or P2Ps

1.4.1.2. way to prevent

1.4.1.2.1. hardware key

1.4.1.2.2. software licence agreement and registration

1.4.1.2.3. digital signature

1.4.1.2.4. digital watermark

1.5. copyright

1.5.1. protects original literary, dramatic, musical, artists work.

1.5.2. automatically granted once created

1.6. open source software

1.6.1. everyone can sell, redistribute or use

1.7. Shareware

1.7.1. a software that is free of charge during trial period

2. copyright ordinance

2.1. person who redistribute or sells copies need to pay up to $50 000 and even 4 years imprisonment.