11.7.0: Key Terms
- Page ID
- 118259
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- Android Studio
- official IDE for Android development
- Asynchronous JavaScript and XML (AJAX)
- exchanges small amounts of data between a client and server
- cascading style sheets (CSS)
- standard style sheet language used to alter the presentation style of the web data content found in HTML
- decentralized Apps (DApps)
- applications that execute smart contracts and run over distributed ledger technology
- Django project
- high-level directory used to contain the directories and files necessary to run a Django web application
- Ethereum blockchain
- creates a secure peer-to-peer network through the use of smart contracts
- Firebase
- app development platform and a collection of services for authenticating users, integrating ads, running A/B tests, and more
- full node
- computer that maintains a copy of the blockchain and runs blockchain software
- gas price
- cost of validating transactions and updating ledgers
- GraphQL
- open-source query and manipulation language
- hypertext markup language (HTML)
- standard markup language used to describe the structure and content of web data
- JavaScript (JS)
- scripting language that adds interactivity to web content and server-side functionality
- JavaScript Object Notation (JSON)
- file format that represents data as text-based attribute-value information
- Jetpack Compose
- toolkit for building native user interfaces
- loose coupling
- component in a software system that has a weak association with the other components
- Metro bundler
- bundles the JavaScript code that is deployed on the mobile device or emulator when the React Native front-end application is successfully created
- Moore’s law
- states that the number of transistors on an integrated circuit doubles roughly every two years
- Node
- JavaScript runtime environment that provides users with the tools to develop web applications, as well as servers, scripts, and command-line tools
- non-fungible token (NFT)
- unique digital identifier on a blockchain
- optimistic rollup
- protocol that increases transaction output by bundling multiple transactions into batches, which are processed off-chain
- peer-to-peer (P2P) network
- one in which devices connect and can share data and processing without needing a centralized server
- Postman
- API platform testing tool that can be used as a client
- React
- JavaScript library popular to build user interfaces
- React Native
- open-source JavaScript framework used to build native applications for mobile devices
- Semantic Web
- system of autonomous agents, which are software programs that respond to events
- serializer
- tool to control response outputs and convert complex data into content, such as JSON
- sidechain
- secondary blockchain that aggregates blocks back to the main blockchain
- Solidity
- high-level, object-oriented language focused on the implementation of smart contracts
- stateful application
- software and system that maintains the state of an application over time
- stateless application
- state is not maintained by the system and previous actions do not impact future ones
- Truffle Framework
- popular suite of tools used to develop smart contracts
- View
- presentation layer that handles the user interface
- Web 1.0
- phase of the Web where the user’s interaction was limited primarily to reading and selecting web pages
- web page
- document commonly written in HTML and viewed in a browser
- web publishing
- also called online publishing; is for publishing content on the Web
- web server
- software application that runs at a known URL and responds to HTTP requests
- World Wide Web (the Web)
- started as a way to link content (primarily text and images) stored on different servers or machines
- Xcode
- Apple’s IDE that enables application development for Apple’s platforms
- zero-knowledge rollup (zk-rollup)
- protocol that bundles transactions into batches that are executed off the mainnet


