O documento introduz os principais conceitos da cibernética, como definida por Norbert Wiener entre 1943-1947. A cibernética estuda a comunica??o e controle em sistemas vivos e máquinas, considerando sistemas como conjuntos de elementos relacionados que visam objetivos operando sobre dados/energia/matéria. A cibernética dá import?ncia a modelos que representam sistemas reais de forma simplificada.
This document introduces two operational support tools for making Cloud Spanner more convenient: Spanner Warming Guy and Spanner Up-Down Guy.
Spanner Warming Guy is a tool that performs warmup of Cloud Spanner before releases. It can add load to Spanner through SELECT queries alone and automatically adjusts the number of SELECT bots.
Spanner Up-Down Guy is a tool that auto-scales the number of nodes in Cloud Spanner. It periodically executes Cloud Functions to adjust the node count according to a pre-defined schedule or the load situation. It can gradually decrease nodes to reduce costs.
This document summarizes Amazon Web Services Japan speaker Tsukagoshi Keisuke's presentation on AWS AppSync. It introduces AppSync as a fully managed GraphQL service that allows building GraphQL APIs integrated with various data sources like Amazon DynamoDB, AWS Lambda, and Elasticsearch. AppSync provides a GraphQL schema definition language to define types and queries, uses Apache Velocity Template Language to map GraphQL queries to data sources, and supports real-time subscriptions. The presentation demonstrated AppSync's capabilities using a sample photo application and GitHub repositories for getting started.
Απ? την εργασ?α που πραγματοπο?ησε ο μαθητ?? τη? Α τ?ξη? του 1ου Γυμνασ?ου Ρ?δου, Αγγελ?? Ιω?ννη? Νικ?λαο? με θ?μα την τηλε?ραση, στα πλα?σια του μαθ?ματο? τη? Τεχνολογ?α?, το σχολικ? ?το? 2021-2022, υπο την επ?βλεψη τη? καθηγ?τρια? Κατσαρ? Χ.
[1] O documento discute o conceito de cidadania ao longo da história, desde a Antiguidade até a modernidade. [2] Na Antiguidade, a cidadania era restrita a homens livres em Atenas e Roma. [3] Na Idade Média, a cidadania declinou devido ao sistema feudal e à influência da Igreja.
Palestra PHP + Node.js apresentada no evento PHPSC Conf 2013 dia 26.10.2013 em Chapecó (SC) pelo especialista em Seguran?a de Sistemas Patrick Kaminski http://patrickkaminski.com/
The document discusses integrating Node.js with PHP by sharing session data stored in Memcached or Redis. It provides examples of using a Memcached session handler in PHP that serializes session data to JSON, and an example Node.js app that retrieves session data from Memcached to identify users. While Node.js enables real-time features, the document argues that PHP still has advantages for many use cases and that the right tool should be chosen for the job.
This document introduces two operational support tools for making Cloud Spanner more convenient: Spanner Warming Guy and Spanner Up-Down Guy.
Spanner Warming Guy is a tool that performs warmup of Cloud Spanner before releases. It can add load to Spanner through SELECT queries alone and automatically adjusts the number of SELECT bots.
Spanner Up-Down Guy is a tool that auto-scales the number of nodes in Cloud Spanner. It periodically executes Cloud Functions to adjust the node count according to a pre-defined schedule or the load situation. It can gradually decrease nodes to reduce costs.
This document summarizes Amazon Web Services Japan speaker Tsukagoshi Keisuke's presentation on AWS AppSync. It introduces AppSync as a fully managed GraphQL service that allows building GraphQL APIs integrated with various data sources like Amazon DynamoDB, AWS Lambda, and Elasticsearch. AppSync provides a GraphQL schema definition language to define types and queries, uses Apache Velocity Template Language to map GraphQL queries to data sources, and supports real-time subscriptions. The presentation demonstrated AppSync's capabilities using a sample photo application and GitHub repositories for getting started.
Απ? την εργασ?α που πραγματοπο?ησε ο μαθητ?? τη? Α τ?ξη? του 1ου Γυμνασ?ου Ρ?δου, Αγγελ?? Ιω?ννη? Νικ?λαο? με θ?μα την τηλε?ραση, στα πλα?σια του μαθ?ματο? τη? Τεχνολογ?α?, το σχολικ? ?το? 2021-2022, υπο την επ?βλεψη τη? καθηγ?τρια? Κατσαρ? Χ.
[1] O documento discute o conceito de cidadania ao longo da história, desde a Antiguidade até a modernidade. [2] Na Antiguidade, a cidadania era restrita a homens livres em Atenas e Roma. [3] Na Idade Média, a cidadania declinou devido ao sistema feudal e à influência da Igreja.
Palestra PHP + Node.js apresentada no evento PHPSC Conf 2013 dia 26.10.2013 em Chapecó (SC) pelo especialista em Seguran?a de Sistemas Patrick Kaminski http://patrickkaminski.com/
The document discusses integrating Node.js with PHP by sharing session data stored in Memcached or Redis. It provides examples of using a Memcached session handler in PHP that serializes session data to JSON, and an example Node.js app that retrieves session data from Memcached to identify users. While Node.js enables real-time features, the document argues that PHP still has advantages for many use cases and that the right tool should be chosen for the job.
Integrating React.js Into a PHP ApplicationAndrew Rota
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React.js has taken the web development world by storm, and for good reason: React offers a declarative, component-oriented approach to building highly-scalable web UIs. But how can we take advantage of a JavaScript library like React in our server-side PHP applications. In this talk l cover the different ways React.js can be integrated into an existing PHP web application: from a client-side only approach to multiple techniques that support full server-side rendering with a Node.js server or PHP’s v8js. I also discuss the trade-offs in each of these designs and the challenges involved with adding React to a PHP site. Most importantly, I consider the higher-level issue of how to improve view cohesion across the client-server divide in a PHP application.
The document discusses advantages and techniques for unit testing PHP code. Key advantages include tests running faster than manual testing, preventing recurring bugs, and finding bugs before users. Challenges include needing to write tests to see benefits and difficulty retrofitting tests for existing code. The document provides guidance on writing simple, isolated tests and describes common PHPUnit methods and patterns for testing. It also discusses how to address inherently hard to test code structures and writes testable code through practices like dependency injection.
初めての Raspberry pi ?プラレールをunityの世界の中で走らせよう? (1)dcubeio
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ハードウェアを触ったことのない Web エンジニアが Raspberry Pi Zero W で初めての開発を行った際の悲喜こもごもをお話をします。
先日行われたリタリコ社のワンダーメイクフェスにて、来場されたお子様たちにプロダクト開発の楽しさを体験してもらおうという目的で作った制作物のお話です。
Unity の 3D 空間上で走っている電車とプラレールの走行を同期させて一律でコントロールできるようにし、お子さんがその場で作った 3D オブジェクトを 3D 空間にリアルタイムに追加していけるプロダクトを目指して開発しました。
(お子様の体験としてはこちらのプロダクトと近いかもしれません: https://www.team-lab.com/sketchaquarium )
ワンダーメイクフェス: https://wonder.litalico.jp/event/fes/