100100110 Information
This is a way to represent information using only two options.
What is binary?
This is a machine that can run a program, including computers, tablets, servers routers, and smart sensors.
Computing Device
A protocol for sending data across the Internet that assigns unique IP addresses to each connected device.
Internet Protocol (IP)
A named reference to a value that can be used repeatedly throughout a program.
variable
Data about data.
Metadata
Eight "binary digits" make up one of these.
What is a byte?
A group of computing devices and programs working together for a common purpose.
Computer System
A chunk of data sent over a network. Larger messages are divided into smaller parts and arrive in any order.
Packets
An ordered sequence of characters
A string
Scientific research conduct in whole or part by distributed individuals, many of whom may not be scientists, who contribute relevant data to research.
citizen science
There are two types of errors we encountered in this class.
One is from attempting to represent a number that is too large and the other is from representing a number that is too precise.
What are those two errors?
Overflow Error and Round-off Error
A group of interconnected computing devices capable of sending or receiving data.
Computing Network
Extra components so that a system can continue to work even if individual components fail.
Data type that is either TRUE or FALSE.
Boolean Value
A process that makes the data uniform without changing its meaning.
cleaning data
What is the difference between lossless and lossy compression?
Lossless reduces the number of bits but doesn't affect quality.
Lossy reduces the number of bits but some information is thrown away.
The maximum amount of data that can be sent in a fixed amount of time.
Bandwidth
Fault-tolerant
NOT, AND, and OR are examples of these types of operators.
Think logically.
Logical operator
The practice of obtaining input or information from a large number of people via the Internet.
Crowdsourcing
This enables the free distribution of otherwise copyrighted work, given by the people who created it.
An agreed upon set of rules that specify the behavior of some system.
Protocol
What does each mean?
HTTP
DNS
WWW
BONUS: Define each term.
HyperText Transfer Protocol: a protocol used for transmitting web pages on the Internet.
Domain Name System: system responsible for translating domain names to IP addresses
World Wide Web: a system of linked pages, programs and files
A named group of programming instructions.
Who ya gonna call?
function
Data that does not accurately reflect the full population or phenomenon being studied.
Data bias