krivanja
krivanja
KRIVANJA
84 posts
3D printing, Arduino, Micro: Bit, Raspberry Pi
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krivanja · 7 months ago
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ONLINE SAFETY FOR KIDS
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Spending time online is great fun! Here are a few simple rules to help kids stay safe and keep the internet a great place to spend time:
Never give out your real name - don't use it as your username.
Never give out any of your personal details.
Never tell anybody which school you go to or how old you are.
Never tell anybody your password except a parent or a guardian.
Be aware that you must be 13 or over to create an account on many sites. Always check the site policy and ask a parent or guardian for permission before registering.
Always tell a parent or guardian if something is worrying you.
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krivanja · 7 months ago
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DIGITAL CITIZEN
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Welcome to the wild, wild web, where the digital citizens roam free! In the vast savannah of the internet, you'll find all sorts of creatures: the keyboard warriors, the meme lords, and the noble influencers, all part of the grand circle of e-life. But what does it mean to be a digital citizen in this algorithmic society? Let's dive into the hilarious truths behind this modern identity.
First off, a digital citizen is someone who can navigate the treacherous waters of social media without capsizing their sanity boat. They're the ones who know their tweets from their twits and their posts from their ghosts. They engage in society, politics, and government with the finesse of a cat walking across a keyboard – sometimes purposeful, sometimes a complete accident, but always entertaining.
Now, being a digital citizen isn't just about being online; it's about thriving online. It's about knowing that your data double – yes, that sneaky digital twin of yours – is out there, making friends, influencing people, and occasionally buying shoes you can't afford. It's about embracing the datafication of society, where every like, share, and emoji is a breadcrumb leading back to your digital doorstep.
But fear not, dear netizen, for digital citizenship also teaches you the art of cyber self-defense. It's about shielding your privacy like a knight in antivirus armor and protecting your precious data from the dragons of identity theft. Remember, a strong password is like a good joke – the longer and more complex, the better, and if it makes a hacker cry, you're doing it right.
And let's not forget the social aspect of being a digital citizen. It's about building a community where you can share your latest cat video or debate the merits of pineapple on pizza (a controversial topic that has divided nations and families). It's about finding your tribe in the vast digital landscape, whether they're gamers, knitters, or people who enjoy watching paint dry in high definition.
So, there you have it, folks – the life of a digital citizen is as varied and vibrant as the internet itself. It's a place where you can be anything, meet anyone, and accidentally learn a new language by AutoCorrect's whims. Embrace your digital citizenship, and remember in the online world, everyone can hear you type.
Stay safe, stay connected, and may your Wi-Fi be ever in your favour!
Happy surfing!
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krivanja · 7 months ago
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Exploring the Roots of Computing: From Ancient Machines to Modern Innovation
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The history of computing is a fascinating journey that spans millennia, showcasing humanity's ingenuity in creating machines to solve problems, automate tasks, and process information. Let’s take a chronological dive into some of the world's earliest computing devices, each a milestone in the evolution of what we now call "the computer."
Antikythera Mechanism: The Ancient Astronomical Computer
Dating back to around 100 BCE, the Antikythera Mechanism is often considered the world’s first analog computer. Discovered in a shipwreck near the Greek island of Antikythera, this intricate device used bronze gears to predict astronomical events, such as eclipses, and to track the cycles of the Olympic Games. Its complexity and precision were unparalleled for its time, revealing a deep understanding of mechanical engineering in ancient Greece.
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The Jacquard Loom: The Dawn of Programmable Machines
Invented by Joseph Marie Jacquard in 1804, the Jacquard Loom revolutionized textile manufacturing by introducing punched cards to control the patterns woven into fabric. This innovation not only automated the weaving process but also laid the groundwork for programmable machines. The concept of punched cards would later influence early computing devices, including those developed by Herman Hollerith and IBM.
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Charles Babbage and the Difference Engine
Charles Babbage, often referred to as the "Father of the Computer," designed the Difference Engine in the 1820s. This mechanical device was intended to automate the production of mathematical tables by performing polynomial calculations. While Babbage never completed a fully functioning Difference Engine in his lifetime, his vision of a programmable, mechanical computer paved the way for future innovations.
Babbage later conceptualized the Analytical Engine, a general-purpose computing device that included features like a memory unit and a processing unit. Though it was never built during his era, the Analytical Engine’s design is recognized as a precursor to modern computers.
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The Enigma Machine: Cryptography in the Digital Age
Fast forward to the 20th century, the Enigma Machine was a cipher device used by Nazi Germany during World War II to encrypt military communications. Designed by German engineer Arthur Scherbius, the Enigma used rotating wheels to scramble messages into complex codes that were nearly impossible to crack without the correct settings. Its influence extended beyond cryptography, shaping the need for computational devices capable of rapid decryption.
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Alan Turing, the Bombe, and Codebreaking
Alan Turing, a British mathematician and computer scientist, played a pivotal role in cracking the Enigma code. During World War II, Turing and his team at Bletchley Park developed the Bombe, an electromechanical device designed to systematically test Enigma settings and decipher German communications. Turing’s work not only helped shorten the war but also laid the foundations of theoretical computer science through concepts like the Turing Machine, an abstract model of computation.
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ENIAC: The First General-Purpose Electronic Computer
In 1945, the Electronic Numerical Integrator and Computer (ENIAC) became the first general-purpose electronic computer. Designed by John Presper Eckert and John Mauchly, ENIAC was a behemoth, occupying a room and containing 17,468 vacuum tubes. It could perform complex calculations at unprecedented speeds, making it a groundbreaking tool for scientific research and military applications.
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Conclusion: From Analog to Digital
The evolution of computers—from the Antikythera Mechanism's intricate gears to ENIAC's vacuum tubes—illustrates humanity's relentless pursuit of automation and problem-solving. Figures like Charles Babbage, Joseph Jacquard, and Alan Turing, alongside innovations like the Difference Engine, the Jacquard Loom, and the Bombe, collectively laid the foundation for the digital age.
Today, the smartphones and laptops we use owe their existence to these pioneering inventions and individuals. By looking back at this journey, we can better appreciate how far we've come—and the limitless possibilities that lie ahead in the realm of computing.
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krivanja · 7 months ago
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Why Programming for kids?
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Teaching programming to kids offers numerous benefits, providing them with valuable skills that extend far beyond the computer screen. Here’s why programming is such a powerful and positive activity for children:
Enhances Problem-Solving Skills: Programming requires children to break down complex problems into smaller, manageable tasks. This approach to problem-solving teaches logical thinking and perseverance, skills they can apply to other areas of their lives.
Boosts Creativity: Coding allows kids to create their own projects, like games, animations, and interactive stories, from scratch. This freedom to build and experiment nurtures creativity and gives them the joy of making something unique.
Builds Resilience: In programming, mistakes are inevitable. Kids learn to debug and test their code, helping them become resilient as they learn to view mistakes as opportunities for growth and learning.
Develops Computational Thinking: Computational thinking is a way of approaching problems in a structured manner. Programming teaches kids to think critically and strategically, developing these cognitive skills that are helpful in school subjects, especially math and science.
Prepares for Future Careers: As technology becomes more integrated into everyday life, programming skills are increasingly valuable. Coding introduces kids to tech-related skills early on, building a solid foundation that could inspire interest in future tech careers.
Encourages Collaboration and Communication: Coding projects often involve teamwork, especially in classroom or club settings where kids collaborate to solve problems and share ideas. This interaction fosters communication and teamwork skills, preparing them to work well with others.
Introduces STEM Concepts in an Engaging Way: Coding is a fun, hands-on introduction to STEM (Science, Technology, Engineering, and Math). Kids can experiment with logic, sequences, and algorithms in a way that makes abstract concepts more accessible and enjoyable.
Empowers Kids to Become Digital Creators, Not Just Consumers: Programming enables kids to see themselves as creators in the digital world. Instead of just playing games or watching videos, they learn they can make games, create stories, or even build simple websites. This sense of agency builds confidence and digital literacy.
Improves Focus and Attention to Detail: Coding requires careful attention to detail, as even a small error can lead to bugs. This helps kids develop a meticulous approach, which improves their focus and attention to detail in other tasks as well.
In a world driven by technology, introducing kids to programming opens doors to endless possibilities. It’s a way to build essential skills for future success while keeping learning engaging, interactive, and fun!
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krivanja · 7 months ago
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Impact of Digital Revolution
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The digital revolution, marked by the transition from analogue to digital technology, has profoundly transformed every aspect of modern life. Starting with the invention of computers and the internet, the revolution has accelerated advancements in communication, information accessibility, and economic growth. It has connected people globally, fostering a knowledge-sharing culture that transcends geographical barriers.
Key Impacts
Communication and Connectivity: The digital revolution enabled instant communication via email, messaging apps, and social media, transforming how people interact, collaborate, and stay informed. Social platforms have become vital tools for social movements, personal networking, and business marketing.
Information Accessibility: The internet made information available to anyone with an internet connection. Search engines, online libraries, and educational platforms have democratized knowledge, allowing individuals worldwide to learn new skills, research topics, and pursue education.
Economic Transformation: The digital economy has created new industries, from e-commerce to cloud computing and software development, drastically reshaping the job market. Many traditional jobs have been automated, while new roles in fields like data science, digital marketing, and cybersecurity have emerged.
Innovation and Automation: Digital technology drives innovation across sectors like healthcare, education, and transportation. Medical technology has advanced with AI-assisted diagnostics, remote patient monitoring, and telemedicine, while automation in manufacturing and logistics has increased efficiency.
Data and Privacy Concerns: The rise of big data and surveillance capabilities has brought privacy issues to the forefront. While data enables personalization, targeted advertising, and predictive analytics, it also raises ethical concerns about security, data ownership, and individual privacy.
Education and Workforce: Digital tools have transformed education, allowing for online courses, virtual classrooms, and e-learning platforms, which expand access and offer flexibility. This transformation requires a new set of digital skills, influencing workforce development and pushing education systems to adapt.
Culture and Entertainment: The digital revolution reshaped entertainment through streaming platforms, digital music, and social media influencers, making content more accessible and interactive. Video games, augmented reality (AR), and virtual reality (VR) have further blended technology with cultural and social experiences.
Overall, the digital revolution has brought about rapid change and unprecedented opportunities, empowering individuals and organizations while also presenting challenges in regulation, ethics, and adaptability. As digital technologies continue to evolve, their impact will keep shaping our future in both anticipated and unforeseen ways.
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krivanja · 7 months ago
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Founding Fathers of AI
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The field of Artificial Intelligence (AI) has been shaped by several pioneering figures, often referred to as the ’founding fathers’ of AI. Here are some of the key contributors.
Alan Turing
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Often considered the "father of computer science", Turing proposed the idea of a machine that could compute anything computable, known as the Turing machine. His 1950 paper "Computing Machinery and Intelligence" posed the famous question, "Can machines think?" and introduced the Turing test to evaluate machine intelligence. The Turing test is a foundational concept in AI.
John McCarthy
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He coined the term Artificial Intelligence in 1956 and organized the Dart mouth Conference that year, which is considered the official founding event of AI as a field. McCarthy also developed the LISP programming language, which became the primary language for AI research. McCarthy’s work laid the foundation for AI as a formal academic discipline.
Marvin Minsky
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A cofounder of the MIT AI Laboratory, Minsky made significant contributions to AI, particularly in robotics and computational cognitive science. His book “The Society of Mind” proposed that intelligence arises from the interaction of nonintelligent parts, a modular theory of mind.
Herbert A. Simon
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A pioneer in AI, cognitive psychology, and economics, Simon contributed to the development of the General Problem Solver (GPS), an early AI program. He also proposed the idea of “bounded rationality,” revolutionizing decision-making theories in AI.
Allen Newell
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Along with Herbert Simon, Newell helped develop the logic Theorist, one of the first AI programs that could prove mathematical theorems. Newell and Simon also worked on the GPS, which applied means-ends analysis to problem solving.
Claude Shannon
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Known as the “father of information theory,” Shannon’s work on mathematical theories of communication and cryptography laid crucial groundwork for AI. His theories helped define how machines could process and interpret data.
Norbert Wiener
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He was the founder of cybernetics, a field that studies the interaction between systems, including machines and humans. Wiener’s work on feedback loops became foundational in robotics and control systems.
Arthur Samuel
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Known for his work in machine learning, Samuel developed a checker playing program that was one of the first to learn and improve through experience. His work was a precursor to modern machine learning techniques
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krivanja · 7 months ago
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Artificial Intelligence (AI)
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Artificial intelligence (AI) is a branch of computer science that deals with the development of computer systems or machines that can perform tasks requiring human intelligence. AI systems can analyse data, recognize patterns, make decisions, and perform tasks that typically require human intelligence, such as:
Learning: AI can improve its performance on tasks over time through machine learning algorithms and data.
Reasoning: AI can solve problems and make decisions considering multiple factors and rules.
Problem-solving: AI can identify and address complex problems.
Perception: AI can interpret and understand data from sensors, images, speech, and text.
Natural Language Processing (NLP): AI can understand, generate, and interact with human language.
AI systems use vast amounts of data and algorithms to train themselves, improving over time through experience. AI is rapidly evolving and has the potential to revolutionize various industries, improve productivity, and improve decision making. However, it also raises ethical and societal concerns, such as privacy, bias, and job displacement.
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krivanja · 9 months ago
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krivanja · 9 months ago
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krivanja · 9 months ago
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krivanja · 9 months ago
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krivanja · 9 months ago
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krivanja · 9 months ago
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krivanja · 9 months ago
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Pico
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krivanja · 9 months ago
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krivanja · 9 months ago
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krivanja · 9 months ago
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