CS Principles 2019-2020

Unit 1 - The Internet

Innovation: A new or improved idea, device, product, etc, or the development thereof

Binary: A way of representing information using only two options.
Bit: A contraction of "Binary Digit"; the single unit of information in a computer, typically represented as a 0 or 1

Bandwidth: Transmission capacity measure by bit rate
Bit: A contraction of "Binary Digit"; the single unit of information in a computer, typically represented as a 0 or 1
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.

Protocol: A set of rules governing the exchange or transmission of data between devices.

Abstraction: a simplified representation of something more complex. Abstractions allow you to hide details to help you manage complexity, focus on relevant concepts, and reason about problems at a higher level.
ASCII: American Standard Code for Information Interchange; the universally recognized raw text format that any computer can understand
Protocol: A set of rules governing the exchange or transmission of data between devices.

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.

IP Address: A number assigned to any item that is connected to the Internet.
Packets: Small chunks of information that have been carefully formed from larger chunks of information.
Protocol: A set of rules governing the exchange or transmission of data between devices.

Network Redundancy: having multiple backups to ensure reliability during cases of high usage or failure
Router: A type of computer that forwards data across a network

Packets: Small chunks of information that have been carefully formed from larger chunks of information.
TCP: Transmission Control Protocol - provides reliable, ordered, and error-checked delivery of a stream of packets on the internet. TCP is tightly linked with IP and usually seen as TCP/IP in writing.

DNS: short for Domain Name System, this system translates domain names (like example.com) to IP addresses (like 93.184.216.34)

DNS: short for Domain Name System, this system translates domain names (like example.com) to IP addresses (like 93.184.216.34)
HTTP: HyperText Transfer Protocol - the protocol used for transmitting web pages over the Internet
IP Address: A number assigned to any item that is connected to the Internet.
TCP: Transmission Control Protocol - provides reliable, ordered, and error-checked delivery of a stream of packets on the internet. TCP is tightly linked with IP and usually seen as TCP/IP in writing.
URL: An easy-to-remember address for calling a web page (like www.code.org).

DNS: short for Domain Name System, this system translates domain names (like example.com) to IP addresses (like 93.184.216.34)
HTTP: HyperText Transfer Protocol - the protocol used for transmitting web pages over the Internet
IP Address: A number assigned to any item that is connected to the Internet.
Net Neutrality: the principle that all Internet traffic should be treated equally by Internet Service Providers.
TCP: Transmission Control Protocol - provides reliable, ordered, and error-checked delivery of a stream of packets on the internet. TCP is tightly linked with IP and usually seen as TCP/IP in writing.