Vocabulary Prototype: A preliminary sketch of an idea or model for something new. It’s the original drawing from which something real might be built or created. Binary - A way of representing information using only two options. Bit - A contraction of "Binary Digit". A bit is the single unit of information in a computer, typically represented as a 0 or 1. Bandwidth - Transmission capacity measure by bit rate Bit rate - (sometimes written bitrate) the number of bits that are conveyed or processed per unit of time. e.g. 8 bits/sec. Latency - Time it takes for a bit to travel from its sender to its receiver. Protocol - A set of rules governing the exchange or transmission of data between devices. ASCII - ASCII - American Standard Code for Information Interchange. ASCII is the universally recognized raw text format that any computer can understand. code - (v) to write code, or to write instructions for a computer. Protocol - A set of rules governing the exchange or transmission of data between devices.

U1L8 The Internet is For Everyone CS Principles U1L8 The Internet is For Everyone

U1L8: The Internet is For Everyone Objectives SWBAT: Connect a personal experience to one challenge related to the idea that "The Internet is for Everyone". Cite one example of how computing has a global affect -- both beneficial and harmful -- on people and society. Explain that the Internet is a distributed global system that works on shared and open protocols.

U1L8 Vocab IETF - Internet Engineering Task Force - develops and promotes voluntary Internet standards and protocols, in particular the standards that comprise the Internet protocol suite (TCP/IP). Internet - A group of computers and servers that are connected to each other. Net Neutrality - the principle that all Internet traffic should be treated equally by Internet Service Providers.

The Internet and RFC’s The Internet works as a system that is built, engineered, and maintained by people. The protocols or rules by which Internet traffic is governed are not owned or controlled by any government or business (at the moment). It’s a group of well-meaning citizen-engineers dedicated to keeping the Internet free, open and robust for all. The Internet Engineering Task Force (IETF) is the group of mostly volunteer citizens that proposes and develops all of the standards and protocols that exist on the Internet. Request for Comments (RFC) documents - like the one we use in the lesson - are how these standards and protocols are defined and published for all to see on the IETF website. They are some of the best-written technical documents in existence. the Internet is obviously much bigger than a single wire connecting two people. It connects billions of people and even more billions of machines.

KWL Chart You may already know a few things about how the Internet works. Maybe you feel like you don’t know anything, but in that case you might have questions or be curious about how things work. To get started learning more about the Internet we want to get out into the open what we know and what we want to know more about “When you enter a web address in a browser and hit enter, what happens? At some point you see the web page in the browser, but what happens in between? What are all the steps?” “Write down the series of things that you think (or have heard) happen right after you hit Enter. What happens first, second, third and so on. “ “Don’t worry if you don’t know all the pieces or how they all fit together. If you don’t know a step, or you are fuzzy on some details, or there’s a gap, that’s okay. Just write down the parts that you know.”

Things we know? Routing messages to the right place Addresses (e.g. IP addresses) Packets (breaking message down into small parts) Security/encryption concerns Translating URL to IP address Clients and servers Databases Internet Service Providers Physical mediums (e.g. WiFi v. Fiber optic v. copper wires, etc.)

Want to know As a class review the list and Write down want to knows Review the clusters of things you came up with Identify gaps or mysteries that exist in the process. Is it totally clear what the sequence of steps is? “Who is in charge of the internet?” “Does any country have its own Internet?” “Is it possible to control what you see or have access to on the Internet? Who is in control, at what level? At what part of the process do they operate? How does it work?“ What are the gaps in what we know? What questions do you have at this point?

The internet is for everyone In the video Vint Cerf says that nobody and everybody is in charge of making the internet work but the reason it all works together because everyone uses the same protocols. So who develops these protocols? Who makes the final decisions? Who is in charge? The amazing thing is that no single person, government, or corporation is in charge. Rather, it is a collection of citizens and volunteers interested in defining the standards who formed a volunteer organization called the Internet Engineering Task Force to develop and promote voluntary internet standards IETF.

The Internet is For Everyone Skim the document and look at the 9 “Internet is for everyone - but it won’t be if…” challenges laid out at the end. Pick two of the challenges that are the most meaningful to you, or relate to some experience you’ve had in your life. In OneNote make a new page named “The Internet is For Everyone”, and reflect on why you chose the two challenges that you chose. Explain why they are important, and how they relate to your life.