User contributions for Mr. Goldstein

17:0517:05, 10 July 2025 diff hist +1,850 N 7.3.1 Bus, Star, Ring, Mesh Created page with "=== 7.3.1 Bus, Star, Ring, Mesh === Here are some common ways networks can be arranged: * Bus Topology: Imagine a single, long road (the "bus" or backbone cable) with houses (computers) connected along it. Data travels along this single cable. If the main cable breaks, the whole network goes down. It's simple but not very fault-tolerant. * * Star Topology: This is like a bicycle wheel with a hub in the middle (a central device like a switch or router) and spokes going o..." current Tag: Visual edit
17:0117:01, 10 July 2025 diff hist +27 Main Page No edit summary Tag: Visual edit
17:0017:00, 10 July 2025 diff hist +349 N 7.3 Network Topologies Created page with "== 7.3 Network Topologies == Network topology describes how computers and other devices are connected in a network. Think of it as the layout or arrangement of roads in a city. Different layouts have different pros and cons for how traffic (data) flows. The way devices are connected affects how fast data can travel and how reliable the network is." current Tag: Visual edit
16:5916:59, 10 July 2025 diff hist 0 7.2.5 DNS (Domain Name System) No edit summary current Tag: Visual edit
16:5816:58, 10 July 2025 diff hist +35 Main Page No edit summary Tag: Visual edit
16:5416:54, 10 July 2025 diff hist −34 7.2.5 DNS (Domain Name System) No edit summary Tag: Visual edit
16:4816:48, 10 July 2025 diff hist +974 N 7.2.5 DNS (Domain Name System) Created page with "=== 7.2.5 DNS (Domain Name System) === Imagine trying to remember the IP address (like a long string of numbers) for every website you want to visit. That would be impossible! That's where DNS (Domain Name System) comes in. DNS is like the Internet's phonebook. It translates easy-to-remember website names (like www.google.com or www.youtube.com) into the computer's IP addresses (like 142.250.191.78). When you type a website address into your browser, your computer asks a..." Tag: Visual edit
16:0516:05, 10 July 2025 diff hist +33 Main Page No edit summary Tag: Visual edit
16:0416:04, 10 July 2025 diff hist +971 N 7.2.4 IP (Internet Protocol) Created page with "=== 7.2.4 IP (Internet Protocol) === IP (Internet Protocol) is like the mailing address system for the Internet. Every device connected to the Internet has a unique IP address, like a street address for your house or a phone number for your phone. These IP addresses are usually a series of numbers (like 192.168.1.1 or 2001:0db8:85a3:0000:0000:8a2e:0370:7334). When you send information across the Internet, IP helps route that information to the correct IP address, making..." current Tag: Visual edit
15:5715:57, 10 July 2025 diff hist +133 Main Page No edit summary Tag: Visual edit
15:5715:57, 10 July 2025 diff hist +1,061 N 7.2.3 UDP (Unreliable, Connectionless) Created page with "=== 7.2.3 UDP (Unreliable, Connectionless) === UDP (User Datagram Protocol) is like sending a postcard. You send it, but you don't get a confirmation that it arrived, and if it gets lost, you don't know. When you send data using UDP: * It's faster because it doesn't bother with checking if everything arrived or if it's in order. * Some data might be lost, and it won't be resent. UDP is unreliable and connectionless (it just sends data without setting up a formal connec..." current Tag: Visual edit
15:4815:48, 10 July 2025 diff hist +1,127 N 7.2.2 TCP (Reliable, Connection-Oriented) Created page with "=== 7.2.2 TCP (Reliable, Connection-Oriented) === TCP (Transmission Control Protocol) is like sending a very important package with a tracking number and signature confirmation. When you send data using TCP, it makes sure that: * All the data arrives, even if it has to be sent again. * The data arrives in the correct order. * The sender gets a confirmation that the receiver got all the data. It's like a phone call where you make sure the other person heard everything y..." current Tag: Visual edit
15:4015:40, 10 July 2025 diff hist +2,318 N 7.2.1 HTTP/HTTPS, FTP, SMTP, POP3, IMAP Created page with "=== 7.2.1 HTTP/HTTPS, FTP, SMTP, POP3, IMAP === Here are some important protocols you might use every day without even realizing it: * HTTP (Hypertext Transfer Protocol): This is the protocol that allows your web browser to talk to web servers and display websites. When you type a website address like www.google.com, your browser uses HTTP to ask for the webpage. * HTTPS (Hypertext Transfer Protocol Secure): This is the secure version of HTTP. The "S" stands for "Secure..." current Tag: Visual edit
15:3115:31, 10 July 2025 diff hist +54 Main Page No edit summary Tag: Visual edit
15:3015:30, 10 July 2025 diff hist +346 N 7.2 Protocols Created page with "== 7.2 Protocols == When computers talk to each other, they need to speak the same language and follow the same rules. These rules are called protocols. Think of protocols like traffic laws: they make sure everyone drives safely and in an organized way. Without protocols, computers wouldn't understand each other, and the Internet wouldn't work!" current Tag: Visual edit
15:2515:25, 10 July 2025 diff hist +1,390 N 7.1.2 TCP/IP Model (4/5 Layers) Created page with "=== 7.1.2 TCP/IP Model (4/5 Layers) === The TCP/IP Model is another way to understand how networks work, and it's the one actually used by the Internet! It's a bit simpler than the OSI Model, usually having 4 or 5 layers, but it covers the same important jobs. It was developed to make sure different types of computers could talk to each other. Think of it like this, compared to the letter example: # Application Layer: You write the letter (your message, like an email,..." current Tag: Visual edit
15:1915:19, 10 July 2025 diff hist +31 Main Page No edit summary Tag: Visual edit
15:1815:18, 10 July 2025 diff hist +1,843 N 7.1.1 OSI Model (7 Layers) Created page with "=== 7.1.1 OSI Model (7 Layers) === The '''OSI Model''' (which stands for Open Systems Interconnection) is a way to understand how different parts of a network work together. It breaks down the process of sending and receiving data into 7 different layers, starting from what you see on your screen all the way down to the physical wires. Each layer has a specific job, and they work together to make sure information gets where it needs to go. Imagine sending a letter: # '..." current Tag: Visual edit
13:5813:58, 10 July 2025 diff hist +23 Main Page No edit summary Tag: Visual edit
13:5713:57, 10 July 2025 diff hist +459 N 7.1 Network Models Created page with " == 7.1 Network Models == When computers talk to each other, they need to follow a set of rules, much like how you follow rules when playing a game. These rules are organized into layers, making it easier to understand and manage how information travels. These organized rules are called '''network models'''. Think of it like building a LEGO castle: you build the base first, then the walls, then the roof. Each layer has its own job, and they work together." current Tag: Visual edit
13:5513:55, 10 July 2025 diff hist +30 Main Page No edit summary Tag: Visual edit
13:5413:54, 10 July 2025 diff hist +1,176 N 7.0 Networking & Internet Created page with "== 7.0 Networking & Internet == Imagine you want to talk to your friend across town. You could shout, but that wouldn't work very well. Instead, you use a phone! Computers also need ways to talk to each other, and that's where '''networking''' comes in. Networking is all about connecting computers so they can share information and resources, like files, printers, or even internet access. The '''Internet''' is the biggest network of all! It's like a giant global web conn..." current Tag: Visual edit
03:0003:00, 10 July 2025 diff hist +326 Main Page No edit summary Tag: Visual edit
02:5902:59, 10 July 2025 diff hist +1,512 N 9.5.3 Behavioral (Observer, Strategy) X. Artificial Intelligence (AI) & Machine Learning (ML) Created page with "=== 9.5.3 Behavioral (Observer, Strategy) === Behavioral design patterns are about how objects communicate and interact with each other. They focus on how responsibilities are assigned and how information flows between objects. * '''Observer:''' Imagine you subscribe to your favorite YouTube channel. When the channel posts a new video, you get a notification. You are the 'observer' watching the 'subject' (the YouTube channel). The Observer pattern defines a one-to-many..." current Tag: Visual edit
02:5802:58, 10 July 2025 diff hist +1,375 N 9.5.2 Structural (Adapter, Decorator) Created page with "=== 9.5.2 Structural (Adapter, Decorator) === Structural design patterns are about how objects and classes are put together to form larger structures. They help make these structures flexible and efficient. * '''Adapter:''' Imagine you have a European power plug, but you're in the United States where the outlets are different. You'd use a power adapter to make them compatible. The Adapter pattern allows two incompatible interfaces (ways of doing things) to work together..." current Tag: Visual edit
02:5602:56, 10 July 2025 diff hist +1,252 N 9.5.1 Creational (Singleton, Factory) Created page with "=== 9.5.1 Creational (Singleton, Factory) === Creational design patterns are all about how objects are created. They help make sure objects are created in a flexible and organized way. * '''Singleton:''' Imagine you have a school, and there's only ''one'' principal. It wouldn't make sense to have two principals, right? A Singleton pattern ensures that a class can only have ''one'' instance (one copy) of itself throughout the entire program. This is useful when you need..." current Tag: Visual edit
02:5002:50, 10 July 2025 diff hist +829 N 9.5 Design Patterns Created page with "=== 9.5 Design Patterns === Imagine you're building different houses. You wouldn't design every single door, window, or roof from scratch every time, right? You'd use common, proven designs that you know work well. In software, design patterns are similar. They are like reusable solutions to common problems that software developers face when designing programs. They aren't finished pieces of code you can just plug in, but rather templates or blueprints for how to structu..." current Tag: Visual edit
02:4802:48, 10 July 2025 diff hist +1,159 N 9.4.2 Test-Driven Development (TDD) Created page with "=== 9.4.2 Test-Driven Development (TDD) === Imagine you're building a LEGO spaceship. Instead of just building it and hoping it flies, what if you first write down exactly how you expect it to fly (e.g., 'it should hover 2 inches above the ground') and then build it to meet that expectation? Test-Driven Development (TDD) is a coding approach where you write tests ''before'' you write the actual code. Here's how it works: # '''Write a failing test:''' You write a small t..." current Tag: Visual edit
02:4602:46, 10 July 2025 diff hist +1,641 N 9.4.1 Unit Testing, Integration Testing, System Testing, Acceptance Testing Created page with "=== 9.4.1 Unit Testing, Integration Testing, System Testing, Acceptance Testing === Software testing happens at different levels, like checking different parts of a robot: * '''Unit Testing:''' This is like checking if a single motor or a single sensor on your robot works perfectly by itself. In software, unit testing means testing the smallest individual parts of the code (like a single function or a tiny piece of a program) to make sure each part works as expected. It..." current Tag: Visual edit
02:4302:43, 10 July 2025 diff hist +654 N Software Testing Created page with "=== 9.4 Software Testing === Imagine you've built a fantastic new robot. Before you send it out to deliver pizzas, you'd want to test it, right? You'd check if it can move, if its arms work, and if it can actually deliver a pizza without dropping it! Software testing is similar. It's the process of checking a computer program to make sure it works correctly, meets all the requirements, and doesn't have any hidden problems or 'bugs'. The goal is to find errors before user..." current Tag: Visual edit
02:4302:43, 10 July 2025 diff hist +29 Main Page No edit summary Tag: Visual edit
02:4202:42, 10 July 2025 diff hist +653 N 9.4 Software Testing Created page with "=== 9.4 Software Testing === Imagine you've built a fantastic new robot. Before you send it out to deliver pizzas, you'd want to test it, right? You'd check if it can move, if its arms work, and if it can actually deliver a pizza without dropping it! Software testing is similar. It's the process of checking a computer program to make sure it works correctly, meets all the requirements, and doesn't have any hidden problems or 'bugs'. The goal is to find errors before user..." current Tag: Visual edit
02:3902:39, 10 July 2025 diff hist +56 Main Page No edit summary Tag: Visual edit
02:3802:38, 10 July 2025 diff hist +737 N 9.3.2 GitHub/GitLab/Bitbucket (Remote Repositories) Created page with "=== 9.3.2 GitHub/GitLab/Bitbucket (Remote Repositories) === While Git helps you manage versions on your own computer, '''GitHub''', '''GitLab''', and '''Bitbucket''' are online platforms that host your Git projects. They are like giant online libraries where developers can store their code, work together, and share their projects with the world. They provide a place for your 'remote repositories' (the online copies of your Git projects) and offer extra tools for teamwork..." current Tag: Visual edit
02:3702:37, 10 July 2025 diff hist +102 Main Page No edit summary Tag: Visual edit
02:3702:37, 10 July 2025 diff hist +1,925 N 9.3.1 Git (Basic Commands: clone, add, commit, push, pull, branch, merge) Created page with "=== 9.3.1 Git (Basic Commands: clone, add, commit, push, pull, branch, merge) === Git is the most popular type of version control system. It's like a powerful librarian for your code. Here are some basic things you can do with Git: * '''clone:''' Imagine you want to get a copy of an existing project from the internet. <code>git clone</code> makes a complete copy of that project onto your computer. * '''add:''' When you've made changes to your code, you first tell Git wh..." current Tag: Visual edit
02:3502:35, 10 July 2025 diff hist +672 N 9.3 Version Control Created page with "=== 9.3 Version Control === Imagine you're writing a really long story with a friend. What if you both make changes to the same part at the same time? Or what if you accidentally delete a whole chapter? How do you go back to an earlier version? Version control is like a super-smart 'undo' button and a 'collaboration' tool for code. It's a system that keeps track of every change made to computer code or other files. This allows multiple people to work on the same project..." current Tag: Visual edit
02:3102:31, 10 July 2025 diff hist +56 Main Page No edit summary Tag: Visual edit
02:3002:30, 10 July 2025 diff hist +1,078 N 9.2.2 User Stories, Sprints Created page with "=== 9.2.2 User Stories, Sprints === Two key ideas in Agile are: * '''User Stories:''' Instead of long, technical documents, Agile teams describe features from the perspective of the person who will use them. A user story sounds like: "As a gamer, I want to be able to jump over obstacles, so I can explore new areas." or "As a parent, I want to track my child's homework, so I know what they need to do." This helps everyone understand ''why'' a feature is important and wha..." current Tag: Visual edit
02:2902:29, 10 July 2025 diff hist +1,227 N 9.2.1 Scrum, Kanban Created page with "=== 9.2.1 Scrum, Kanban === Agile has different 'flavors' or specific ways of doing things: * '''Scrum:''' Think of a rugby team huddle, or 'scrum', where players quickly plan their next move. Scrum is a popular Agile method that organizes work into short, time-boxed periods called 'sprints' (usually 1-4 weeks long). During a sprint, a team focuses on completing a small set of features. They have daily stand-up meetings to quickly share progress and problems, and they r..." current Tag: Visual edit
02:2702:27, 10 July 2025 diff hist +28 Main Page No edit summary Tag: Visual edit
02:2702:27, 10 July 2025 diff hist +717 N 9.2 Agile Methodologies Created page with "=== 9.2 Agile Methodologies === Imagine you're planning a surprise birthday party. If you stick to a super strict plan made months ago, you might miss out on new ideas or changes! Agile methodologies are like a flexible way of planning and building software. Instead of trying to plan everything perfectly at the beginning, Agile teams work in small, quick bursts, constantly getting feedback and adapting to changes. It's all about being flexible, working together closely,..." current Tag: Visual edit
02:2402:24, 10 July 2025 diff hist +2,018 N 9.1.2 Models (Waterfall, Iterative, Spiral) Created page with "=== 9.1.2 Models (Waterfall, Iterative, Spiral) === Just like there are different ways to build a house (some people build room by room, others build the whole frame first), there are different models, or approaches, to following the SDLC: * '''Waterfall Model:''' Imagine a waterfall flowing downwards. In this model, each phase of the SDLC (Requirements, Design, Implementation, etc.) must be completed entirely before the next phase can begin. You can't go back upstream..." current Tag: Visual edit
02:2302:23, 10 July 2025 diff hist +48 Main Page No edit summary Tag: Visual edit
02:2002:20, 10 July 2025 diff hist +37 Main Page No edit summary Tag: Visual edit
02:0402:04, 10 July 2025 diff hist +2,198 N 9.1.1. Phases (Requirements, Design, Implementation, Testing, Deployment, Maintenance) Created page with "=== 9.1.1 Phases (Requirements, Design, Implementation, Testing, Deployment, Maintenance) === The SDLC is broken down into several important phases, kind of like different stages of a journey: * '''Requirements:''' This is like figuring out what kind of building you want. Do you need a school? A hospital? How many rooms? What features? In software, this means talking to the people who will use the software to understand exactly what it needs to do. For a game, this migh..." current Tag: Visual edit
01:5901:59, 10 July 2025 diff hist +670 N 9.1 Software Development Life Cycle (SDLC) Created page with "=== 9.1 Software Development Life Cycle (SDLC) === Building software, especially big and complicated software, is a bit like building a skyscraper. You can't just start laying bricks! You need a clear plan, different teams working on different parts, and a way to make sure everything comes together correctly. The Software Development Life Cycle (SDLC) is a roadmap that guides software engineers through all the steps needed to create high-quality software. It helps make s..." current Tag: Visual edit
01:5701:57, 10 July 2025 diff hist +712 N 9.0 Software Engineering Created page with "=== 9.0 Software Engineering === Imagine you want to build a fantastic new video game, or a super helpful app for your phone. You wouldn't just start coding wildly, right? You'd need a plan! Software engineering is like being an architect and a builder for computer programs. It's about using smart, organized ways to design, create, and maintain software so that it works well, is easy to use, and can be changed or updated later. Think of it as a disciplined approach to cr..." current Tag: Visual edit
01:5601:56, 10 July 2025 diff hist +78 Main Page No edit summary Tag: Visual edit
01:4801:48, 10 July 2025 diff hist +3 10.4.5 Recurrent Neural Networks (RNNs) No edit summary current Tag: Visual edit

10 July 2025