Unit 1/2 - Digital Information/ The Internet

a way of rep. info using only two options

a way of rep. info using ten options

a contraction of “binary digit”; the single unit of info in a comp (represented as a 0 or 1)

8 bits

error from attempting to rep a # that is too large

error from attempting to represent a # that is too precise (value is rounded)

Data with values that change continuously or smoothly over time. (ex. music, colors of a painting, position of a sprinter)

data that changes discretely through a finite set of possible values

selecting a subset of data from a larger dataset to represent the whole a process for creating a digital rep of analog data -> by measuring the analog data at regular intervals (aka/ samples)

a process for reducing the # of bits needed to rep something w/o losing any info (process is reversible)

process for reducing the # of bits needed to rep something in which some info is lost / thrown away. (not reversible)

A work or invention to which one has rights and for which one may apply for a patent, copyright, trademark, etc.

A collection of public copyright licenses that enable the free distribution of an otherwise copyrighted work (ex. used author wants to give people the right to share, use, and build upon a work that they have created)

a machine that can run a program, including computers, tablets, servers, routers, and smart sensors

a group of computing devices and programs working together for a common purpose

a group of interconnected computing devices capable of sending or receiving data.

the series of connections between computing devices on a network starting with a sender and ending with a receiver.

the maximum amount of data that can be sent in a fixed amount of time, usually measured in bits per second.

An agreed-upon set of rules that specify the behavior of some system

The unique number assigned to each device on the Internet.

a protocol for sending data across the Internet that assigns unique numbers (IP addresses) to each connected device

A type of computer that forwards data across a network

A chunk of data sent over a network. Larger messages are divided into packets that may arrive at the destination in order, out-of-order, or not at all.

the inclusion of extra components so that a system can continue to work even if individual components fail (ex. by having more than one path between any two connected devices in a network.)