eBooks de Introducción a la informática, página 7 de 39

Todays computer scientists play the same role as the oracles of the ancient world and the astrologers of the Middle Ages. Modern predictions not only advise on war, crop output, and marriages, but algorithms and statisticians also now determine whether we can get a loan, a job, an apartment, or an organ transplant. And when we cede ground to these predictions, we lose control of our own lives.In this powerful, refreshing new look at the many ways prediction shapes our everyday lives, University of Oxford professor Carissa Veliz explains how putting too much stock in others predictions makes us vulnerable to charlatans, con artists, dubious technology, and self-deception. Examining a wide range of subjects both personal and societal, including medicine, climate, technology, society, and others, Veliz uncovers a number of insights: predictions about humans tend to be self-fulfilling; more data doesnt guarantee better outcomes; AI is more likely to increase risk than decrease it; and a free and robust society requires not more prediction, but better preparation.Veliz argues in this incisive and bracingly original book that the main promise of prediction is not knowledge of the future, but rather power over others. Prophecy is an invitation to defy those orders and live life on our own terms.

Why are the "Submit" buttons on websites always so large, while the "Delete Account" links are microscopic text buried at the bottom of the page? It is not just visual hierarchy; it is the direct application of a strict mathematical formula known as Fittss Law.Developed in 1954, Fittss Law is a predictive model of human movement. It calculates the exact millisecond time required for a human to rapidly move a cursor to a target area, proving that the time is a function of the distance to the target divided by the size of the target. This book breaks down the kinematic physics governing our daily digital lives.We explore how UI/UX engineers weaponize this formula. By placing frequently used tools on the infinite edges of a screen (where the target size is mathematically limitless), or deliberately shrinking destructive buttons to increase the time and friction of a click, designers control our digital pacing.Master the invisible physics of the screen. Understand the biomechanical equations that dictate every single interaction you have with your computer.

A Série Universitária foi desenvolvida pelo Senac São Paulo com o intuito de preparar profissionais para o mercado de trabalho. Os títulos abrangem diversas áreas, abordando desde conhecimentos teóri

In the early days of computing, machines were massive, cold calculators built exclusively for processing numerical data. No one anticipated that typing text into a rudimentary terminal could provoke genuine emotional breakthroughs, or that people would willingly confess their deepest secrets to a machine.The profound mystery emerged when researchers introduced ELIZA, a simple program designed to parody a psychotherapist. To their shock, users instantly formed intense emotional bonds with the code, fiercely defending the machines perceived empathy. This exposed a terrifying vulnerability in human psychology: our desperate, hardwired need to be heard, even if the listener is just an empty script echoing our words back to us.This captivating historical overview uncovers the origins of conversational user interfaces and the accidental discovery of the ELIZA effect. It details how mid-century computer scientists inadvertently became psychiatric engineers, wrestling with the ethical implications of machines that could simulate human care without possessing a shred of consciousness.Explore the fascinating dawn of artificial intelligence and uncover the roots of our modern digital dependency. Read this compelling narrative to understand why we trust algorithms with our emotions and what that reveals about the human condition.

In the mid-1980s, the Therac-25 was hailed as the future of cancer treatment. A computer-controlled radiation therapy machine, it replaced physical safety interlocks with software logic. But a microscopic "race condition" in the codea millisecond timing errorcaused the machine to deliver massive, lethal overdoses of radiation to unsuspecting patients.This book provides a haunting forensic analysis of the software engineering culture that allowed these errors to persist. It exposes how a single programmers overconfidence and the lack of independent testing transformed a life-saving device into a silent executioner. The investigation traces the harrowing experiences of the victims and the slow realization of the manufacturers.Learn the technical mechanics of the bug that changed the field of software safety forever. It is an essential reference for understanding the ethical burden of automation and the catastrophic consequences of ignoring the "human-in-the-loop" principle.A devastating study of what happens when we trust the logic of a machine more than the warnings of the people who operate it.

"Butterfly Effect" introduces a revolutionary approach to digital defense, arguing that the traditional, static methods of protecting our data are obsolete. This book uncovers the "butterfly effect" in cyber security: how tiny, seemingly insignificant vulnerabilities can cascade into catastrophic system failures. It exposes the dynamic, chaotic nature of modern cyber threats and reveals the "hidden mechanics" of a resilient, adaptable defense strategy that mimics biological systems.The reader will explore the shift from a "castle-and-moat" mentality to a "zero trust" model, analyzing the psychology of hackers and the rise of automated, AI-driven attacks. The text provides actionable insights into how organizations and individuals can build a "digital resilience" that can absorb and recover from inevitable breaches. It is a journey into the invisible battlegrounds of a hyper-connected world."Butterfly Effect" is a must-read for anyone seeking to understand the future of digital security. It offers general readers a clear and compelling framework for navigating the complexities of cyber risk, empowering them to build a more secure and resilient digital future.

Millions of players log on every day not to embark on epic quests or test their reflexes, but simply to watch a number slowly increase. The rise of idle gaming defies all traditional logic of what makes a video game engaging, yet it is one of the most profitable sectors in the modern mobile economy.Idle games, or "clickers," strip away complex gameplay to expose the raw, underlying architecture of the dopamine feedback loop. By breaking down progression into infinite, mathematically calculated micro-rewards, these games hijack the brains innate desire for accumulation and efficiency. The player is not playing a game; they are managing a spreadsheet that rewards them for their absence, creating a compulsive need to return and harvest their artificial wealth.This book deconstructs the mathematical models and behavioral triggers that make non-interactive games wildly addictive. You will discover how developers balance exponential scaling curves, prestige resets, and offline progress to create an unbreakable cycle of engagement that seamlessly integrates aggressive monetization tactics.Unlock the dark arts of player retention. Analyze the absolute distillation of reward psychology and learn how modern software leverages our biological craving for progress to extract infinite value from minimal interaction.

A Tecnologia da Informação passou a ocupar um papel estratégico nas organizações, exigindo processos bem estruturados de gestão e governança. A partir dessa perspectiva, esta obra apresenta fundament

Why does landing a shot in a modern first-person shooter feel so inherently satisfying? Its not the visual explosion or the point tally; it is the instantaneous, micro-engineered acoustic "thwip" of the hit marker. This tiny interface element revolutionized competitive gaming by hacking our brains.Before the hit marker, players fired blindly into pixelated smoke, unsure if their weapons were effective. By designing a distinct, high-frequency audio cue paired with a sharp visual crosshair flash, developers created the ultimate dopaminergic feedback loop. This psychoacoustic trick removes latency anxiety and validates the players spatial accuracy on a subconscious level.This technical breakdown examines the intense audio engineering and UI mathematics behind game feel. It reveals how sound designers manipulate frequency layers to ensure the hit marker punches through chaotic battle noise without causing auditory fatigue over thousands of repetitions.Master the science of digital feedback. Learn how implementing a fraction of a second of perfectly tuned confirmation audio completely alters human engagement and satisfaction.

We are living in an era where artificial intelligence can easily defeat grandmasters at chess, compose symphonies, and pass the bar exam. Yet, a multi-million-dollar robot still struggles to walk up a flight of stairs, catch a ball, or fold a simple laundry towel. This baffling contradiction is known as Moravecs Paradox: the discovery that high-level reasoning requires very little computation, but low-level sensorimotor skills demand enormous, almost impossible computational resources.This book breaks down the cognitive science and engineering hurdles behind this phenomenon. It explains why the human brain, optimized over millions of years of evolution, makes physical movement look effortless while treating abstract logic as difficult. The implications for the future of work, automation, and tech investments are massive, completely flipping our assumptions about which jobs will be replaced by machines first.Dive into the hidden mechanics of machine learning and robotics to understand why plumbers and carpenters are safer from automation than data analysts and paralegals. Learn how to navigate the AI revolution by banking on the physical world.

Artificial intelligence is no longer a distant idea or a specialist topic. It is part of everyday life. It helps people write messages, plan tasks, learn faster, and organize information. Yet many still feel unsure where to begin or worry they need technical knowledge to keep up. AI Made Simple is a clear and friendly guide created for real people, not experts. If you have ever wondered what artificial intelligence actually does, how to use it properly, or whether it is safe to rely on, this book gives you calm and practical answers. You do not need a technical background. You do not need to understand computers deeply. You only need curiosity and a willingness to learn step by step. Inside, you will discover what artificial intelligence truly is and what it is not. The book explains everything using plain everyday language so the ideas feel familiar instead of complicated. Each chapter focuses on practical understanding rather than theory, showing how AI fits naturally into daily routines. You will learn how to ask clear questions and get helpful answers instead of confusing ones. You will see how AI can make work tasks easier without replacing your skills. You will discover how it can simplify home life, assist writing, help planning, and support creativity. The book also shows how to stay safe, protect privacy, and avoid common mistakes so you stay in control at all times. Rather than dramatic predictions or technical detail, this guide offers confidence. You will understand the limits of artificial intelligence, recognize common myths, and know when to trust it and when to double check. By the end, AI stops feeling intimidating and starts feeling like a normal helpful assistant. Perfect for beginners, adults returning to technology, students, and anyone curious about modern tools, this book removes fear and replaces it with clarity. You will learn how to: Understand artificial intelligence in simple terms Use AI tools in everyday situations Communicate clearly to get better results Improve productivity at work and home Write, plan, and organize faster Avoid common beginner mistakes Protect your privacy and stay safe Adapt comfortably as technology changes Artificial intelligence is becoming part of normal life. You do not need to become an expert. You only need to feel comfortable. AI Made Simple turns confusion into confidence and shows you how to use modern tools wisely, calmly, and effectively.

You download a new mobile racing or io-game. You are instantly matched with opponents, the competition is fierce but manageable, and you secure a satisfying victory. What the game doesnt tell you is that every single "player" you just defeated was a carefully calibrated artificial intelligence designed to let you win.This book exposes the deceptive architecture of Phantom Multiplayer. It investigates the massive industry secret behind mobile gaming, where bots disguise themselves with real human usernames and simulated latency to provide the illusion of a populated, thriving server.We analyze the psychological manipulation at play. By engineering an environment where you win just enough to feel skilled, but lose just enough to stay engaged, developers hack your dopamine loop without the unpredictability of actual human opponents. It is a study in algorithmic flattery and consumer deception.Unmask the bots hiding in your smartphone. Learn how developers manufacture artificial triumphs to keep you scrolling, tapping, and paying.

A Série Universitária foi desenvolvida pelo Senac São Paulo com o intuito de preparar profissionais para o mercado de trabalho. Os títulos abrangem diversas áreas, abordando desde conhecimentos teóri

In the tech industry, "frictionless" is the ultimate buzzword. Designers spend millions optimizing apps to ensure that purchasing, subscribing, or transferring money requires nothing more than a casual glance or a single, effortless tap of the thumb.But this obsession with removing barriers has created a catastrophic vulnerability. By eliminating the natural pauses that once forced consumers to stop and think, frictionless design has inadvertently paved a golden highway for scammers, making it easier than ever to trick the brain into making irreversible financial mistakes.Seamless Deception investigates the dangerous intersection of behavioral psychology and user interface design. It reveals how the very mechanics designed to make our lives easier are being weaponized by bad actors to bypass our cognitive defenses and empty our wallets with terrifying speed.Rethink the value of inconvenience in the digital age. Learn how to recognize manipulative design patterns, implement necessary friction into your digital life, and protect your assets from the hidden dangers of an overly optimized world.

When Microsoft released early versions of Windows, they included simple games like Solitaire and Minesweeper. For decades, millions of office workers lost countless hours to these digital distractions. But these games were not included merely for entertainment; they were covert training programs designed to rewire human muscle memory.This technological history uncovers the brilliant user-interface strategy behind early operating systems. In the early 1990s, the computer mouse was an alien concept. Solitaire was specifically engineered to teach users the fluid mechanics of "drag and drop," while Minesweeper was designed to train speed and precision with the "left and right click."By examining the diaries of early software engineers, the book reveals how these simple games bridged the massive psychological gap between analog typewriters and digital interfaces. It explores how hidden gamification successfully taught an entire generation a new language of physical interaction without them ever realizing they were in a classroom.Revisit the grey screens that shaped our digital dexterity. This narrative proves that the most effective technological revolutions are the ones disguised as pure play.

Em um mundo cada vez mais conectado e automatizado, e com a proliferaço do uso de inteligencia artificial, o bom funcionamento dos dispositivos eletronicos, especialmente os que compem o ecossistema IoT, tornou-se essencial para a segurança, para a produtividade e ate para a sobrevivencia humana. Este livro sugere um modelo conceitual e tecnico que prope o monitoramento da "saude" de dispositivos inteligentes com base na analise multidimensional e temporal de seus parametros eletricos. A analise de dados funcionais por meio da criaço de matrizes multidimensionais sobrepostas permite organizar e monitorar dados como corrente, tenso, potencia, consumo e fator de potencia ao longo do tempo e de formas diferentes. O autor prope uma abordagem para inferir, de forma visual e objetiva, mediante algoritmos, o indice de saude de um dispositivo. O modelo oferece tambem uma representaço grafica comparavel a um "raio X digital", revelando o estado interno do equipamento com base em variaçes sutis de desempenho e desgaste de seus componentes eletronicos. O livro foi dividido em duas partes. Uma delas, a mais ludica, diz respeito a comparaço entre o funcionamento de um corpo humano e um dispositivo inteligente; e a outra sugere um modelo para obter indicadores da saude dos dispositivos. O livro no apenas apresenta a sua teoria de uso das matrizes temporais multidimensionais como traz insights de implementaço, desde a prototipagem ate as aplicaçes futuras em manutenço preditiva, redes autonomas e inteligencia embarcada. Assim, em determinados momentos, vamos nos referir a dispositivos de IoT simplesmente como "o IoT". O objetivo e apresentar caminhos alternativos para que o leitor possa refletir sobre o papel das maquinas no nosso cotidiano e a necessidade de preservar sua integridade em um mundo onde humanos e sistemas automatizados se tornam cada vez mais interdependentes.

Numa empresa, o operador de computador é responsável por dar suporte ao setor de tecnologia da informação e da comunicação. Ele deve saber instalar e desinstalar aplicativos, orientar sobre seu uso,

## Aprenda a criar um negócio online real, mesmo começando do zeroVocê não precisa ser especialista em tecnologia, marketing ou programação para começar no e-commerce. O que você precisa é **entender

Sempre tive muita dificuldade em usar a internet de forma lucrativa. Por isso após muita pesquisa inclusive usando a Inteligência Artificial, resolvi publicar esse livro.

Before Bitcoin made millionaires, before NFTs broke the internet, a small group of cryptographers dreamed of money governments couldnt control. This is their storyand everything that came after.This visually rich narrative traces blockchain technology from its ideological roots in 1980s cypherpunk communities through todays multi-trillion dollar Web3 ecosystem. Youll discover the people, ideas, failures, and breakthroughs that transformed obscure cryptography into technology reshaping finance, art, governance, and identity.Journey through defining moments: the cryptography breakthroughs that made digital scarcity possible, Satoshi Nakamotos mysterious Bitcoin whitepaper and disappearance, early adopters buying pizza for 10,000 Bitcoin, Ethereums launch enabling programmable money, the ICO boom and bust, DeFi summer that rebuilt finance, NFT mania that confused the world, and DAO experiments in decentralized governance.Meet the visionaries and villains: cypherpunks who laid ideological foundations, developers who coded impossible ideas into reality, entrepreneurs who built exchanges and platforms, scammers who ran billion-dollar frauds, regulators struggling to contain innovation, and ordinary people whose lives changed through cryptocurrency adoption.