Week 5 Flashcards
What is copyright?
Your rights to control your works of creative expression
When do you get copy right over an image?
Happens as soon as the pen leaves the paper!
Does any action need to be taken to own the rights to work that was created by you?
If you created it, you OWN the copyright by default.
◦ You don’t have to do anything
If you work for a company and you designed something while working for the company, then who does the copyright belong to?
The company
What can you copyright?
Anything you created that is TANGIBLE (a tangible medium of expression)
Eg. drawing vs a song in your head
Photographs, drawings
Music (recording, written)
Sculptures
Non words nor name
Not ideas (patent)
What is the reality of this myth: changing a design 20% means you can use it
Reality: if you created it, once your pen is off the paper you own!
- You can agree with someone that they will pay you for your work (in reality this doesn’t always happen).
What is a (computer) network?
A group of interconnected computers (could be connected with wires,
wirelessly, satellites)
Like a family of computers that talk to eachother
What are examples of networks?
Companies have their own network
Western has its own network
Can you have different networks talk to eachother?
You can get one network to talk to another network and expand from there
What are the different network layouts?
- Centralized
- Loop
- Web
How does a centralized network layout work?
If LA wants to talk to Seattle, it has to go through wires to Washington first (centralized computer) then to Seattle
What are the pros of a centralized network layout (example 1 in lecture)?
- Can put all your software on the centralized machine and share among all computers
- Simple layout/easy to understand
- If outer machine goes out, it doesn’t effect the other machines
What are the cons of a centralized layout (example 1)?
- If something happens to centralized machine, big problems happen=the other computers won’t be able to talk to anyone, become isolated
- Not reliable
Are networks software or hardware?
Hardware: the wires, the satellites that allow computers to talk to eachother
How does a loop network layout work?
- Everyones on same level
- Goes from one machine to next distributively in a route
What are the pros of a loop network layout (example 2 in lecture)?
- If 1 machine goes out, go the other way in the loop
What are the cons of a loop layout (example 2)?
- If 2 computers go down (not right next to eachother), it cuts connection off for some computers from others
How does a web network layout work?
- Wires from everywhere to everywhere
- Computers can talk to multiple others directly
IMPORTANT: What are the pros of a web network layout (example 3 in lecture)?
- Very reliable
- The network used now (came up with in 1969)
What is the internet?
A global system of interconnected
computer networks that use the standardized Internet Protocol Suite (TCP/IP) to serve billions of users worldwide.
Essentially a network of networks
Is the internet hardware or software?
The Internet is hardware, not software! The World Wide Web is software that runs on the Internet!
How does the internet work?
Uses TCP/IP, a standard protocol (way of communicating)
IMPORTANT: How did the TCP/IP protocol come to?
Ideas behind this protocol were funded by the Advanced Research Projects Agency (ARPA) of the
US Department of Defence (DoD) (around 1969).
Thus the Internet was originally called the ARPANET
Why was the ARPANET created?
Thought to be created by DoD to defend against nuclear attack but really it was because there was no good, high power computer for researchers from universities to use to access info and no way to get to them