User contributions for Mr. Goldstein

17:1417:14, 9 July 2025 diff hist −78 5.1 CPU Components No edit summary Tag: Visual edit
17:1217:12, 9 July 2025 diff hist +41 5.1 CPU Components No edit summary Tag: Visual edit
17:0617:06, 9 July 2025 diff hist −44 5.1 CPU Components No edit summary Tag: Visual edit
16:5316:53, 9 July 2025 diff hist +4,176 5.1 CPU Components No edit summary Tag: Visual edit
16:4016:40, 9 July 2025 diff hist +2,526 5.0 Computer Architecture & Organization No edit summary current Tag: Visual edit
16:2216:22, 9 July 2025 diff hist +648 N 5.2.1 Cache Memory (L1, L2, L3) Created page with "=== 5.2.1 Cache Memory (L1, L2, L3) === '''Cache memory''' is like the CPU's personal, super-fast mini-notepad. It's tiny but incredibly quick. The CPU stores data it uses very often in cache, so it doesn't have to go all the way to the main memory, which is slower. There are usually different levels of cache: * '''L1 Cache:''' This is the fastest and smallest cache, right inside the CPU. * '''L2 Cache:''' A bit larger and slightly slower than L1, but still very fast. *..." Tag: Visual edit
16:1516:15, 9 July 2025 diff hist +264 Main Page No edit summary Tag: Visual edit
16:1516:15, 9 July 2025 diff hist +429 N 5.2 Memory Hierarchy Created page with "== 5.2 Memory Hierarchy == Computers need places to store information, and they have different types of storage, just like you might have a tiny notepad for quick notes, a backpack for school books, and a whole library for all your reading. This layered storage system is called the '''Memory Hierarchy'''. The idea is to have some very fast but small memory close to the CPU, and then slower but much larger memory farther away." Tag: Visual edit
16:1316:13, 9 July 2025 diff hist +861 N 5.1.4 Instruction Cycle (Fetch, Decode, Execute, Store) Created page with "=== 5.1.4 Instruction Cycle (Fetch, Decode, Execute, Store) === Computers follow a set of steps over and over again to run programs. This cycle is called the '''Instruction Cycle''', and it has four main parts: # '''Fetch:''' The CPU goes to memory (like looking in a book) and gets the next instruction it needs to follow. # '''Decode:''' The CPU figures out what that instruction means. It's like translating a secret code into something it understands. # '''Execute:''' T..." Tag: Visual edit
16:1216:12, 9 July 2025 diff hist +341 N 5.1.3 Registers Created page with "=== 5.1.3 Registers === '''Registers''' are tiny, super-fast storage areas right inside the CPU. Imagine them as small scratchpads where the CPU can quickly jot down important notes or numbers it's currently working on. Because they are so close to the CPU's brain, the CPU can access information in registers much faster than anywhere else." Tag: Visual edit
16:0816:08, 9 July 2025 diff hist +307 N 5.1.2 Control Unit (CU) Created page with "=== 5.1.2 Control Unit (CU) === The '''Control Unit (CU)''' is like the CPU's boss or traffic cop. It doesn't do the actual math, but it tells all the other parts of the CPU what to do and when to do it. It makes sure everything runs smoothly and in the correct order, like a conductor leading an orchestra." Tag: Visual edit
16:0216:02, 9 July 2025 diff hist +273 N 5.1.1 Arithmetic Logic Unit (ALU) Created page with "Think of the '''ALU''' as the "math and logic master" of the CPU. When your computer needs to add two numbers, subtract them, or even compare if one number is bigger than another, the ALU is the part that does it. It's like a super-fast calculator built right into the CPU!" Tag: Visual edit
16:0016:00, 9 July 2025 diff hist +308 N 5.1 CPU Components Created page with "== 5.1 CPU Components == The '''CPU''' (short for Central Processing Unit) is like the brain of your computer. It's the part that does all the thinking and calculating. Just like your brain has different parts for different jobs (like remembering or solving problems), the CPU also has its own special parts." Tag: Visual edit
15:5715:57, 9 July 2025 diff hist +45 Main Page No edit summary Tag: Visual edit
15:5615:56, 9 July 2025 diff hist +560 N 5.0 Computer Architecture & Organization Created page with "== 5.0 Computer Architecture & Organization == Imagine a computer as a super smart city. Just like a city has different parts that work together (like roads, buildings, and a mayor's office), a computer also has many parts that team up to get things done. '''Computer Architecture''' is like the blueprint of this city – it shows how all the pieces are designed and how they fit together. '''Computer Organization''' is like how the city actually operates and manages its t..." Tag: Visual edit
15:5215:52, 9 July 2025 diff hist +156 Main Page No edit summary Tag: Visual edit
15:5215:52, 9 July 2025 diff hist +2,219 N 4.1.2.4 Heaps (Min-Heap, Max-Heap) Created page with "=== 4.1.2.4 Heaps: Finding the Biggest (or Smallest) Fast === Imagine a special pile of toys where the biggest toy is always at the very top, easy to grab. Or, imagine a pile where the smallest toy is always at the top. A '''heap''' in computer science is like that special pile! It's a tree-like data structure (but usually stored in a simple array) that helps you quickly find and grab the largest or smallest item. Heaps have two main rules: # It's a "complete binary tr..." current Tag: Visual edit
15:4915:49, 9 July 2025 diff hist +2,655 N 4.1.2.3 Hash Tables (Hashing Functions, Collision Resolution) Created page with "=== 4.1.2.3 Hash Tables: Super-Fast Lookups === Imagine you have a huge closet with many numbered hooks, and you want to store your clothes so you can find them super fast. A '''hash table''' is like that closet! It's a data structure that helps computers store and find information incredibly quickly. Instead of looking through every item, a hash table uses a special trick: it takes the information you want to store (like a piece of clothing) and uses a special "hashing..." current Tag: Visual edit
15:3515:35, 9 July 2025 diff hist +2,348 N 4.1.2.2 Graphs (Directed, Undirected, Weighted) Created page with "=== 4.1.2.2 Graphs: Connecting Everything === Imagine a map of cities with roads connecting them, or a social media network where people are connected by friendships. A '''graph''' in computer science is a way to represent these kinds of connections! It's made up of: * '''Nodes (or Vertices):''' These are the "dots" or "points" in the graph, representing things like cities, people, or web pages. * '''Edges:''' These are the "lines" or "connections" between the nodes, re..." current Tag: Visual edit
15:2715:27, 9 July 2025 diff hist +82 Main Page No edit summary Tag: Visual edit
14:5114:51, 9 July 2025 diff hist +404 4.1.2.1 Trees (Binary Trees, Binary Search Trees, AVL Trees, Red-Black Trees) No edit summary current Tag: Visual edit
14:4514:45, 9 July 2025 diff hist +3,486 N 4.1.2.1 Trees (Binary Trees, Binary Search Trees, AVL Trees, Red-Black Trees) Created page with "=== 4.1.2.1 Trees: Like a Family Tree for Data === Imagine a family tree, where one person is at the top (the oldest ancestor), and then they have children, who have children, and so on. A '''tree''' in computer science is very similar! It's a way to organize data in a hierarchy, starting from a single "root" node at the top. Each node can have "children" nodes below it, but each child only has one "parent." * '''Root:''' The very top node, like the first ancestor in a..." Tag: Visual edit
14:4214:42, 9 July 2025 diff hist +4 Main Page No edit summary Tag: Visual edit
14:4214:42, 9 July 2025 diff hist +325 N 4.1.2 Non-Linear Data Structures Created page with "== 4.1.2 Non-Linear Data Structures: More Complex Ways to Organize == While linear data structures arrange data in a line, '''non-linear data structures''' organize data in more complex ways, like branches, networks, or special groupings. This allows them to handle relationships between data that aren't just "next in line."" current Tag: Visual edit
14:3814:38, 9 July 2025 diff hist +43 Main Page No edit summary Tag: Visual edit
14:3714:37, 9 July 2025 diff hist +2,192 N 4.1.1.4 Queues (FIFO, Priority Queues) Created page with "=== 4.1.1.4 Queues: First In, First Out (FIFO) === Now, imagine a line of people waiting for a roller coaster. The first person who gets in line is the first person to get on the ride. A '''queue''' in computer science is just like that! It follows a rule called '''FIFO''', which stands for '''First In, First Out'''. The first item you put ''in'' the queue is always the first item to come ''out''. * '''Adding items to a queue is called "enqueuing."''' (Like joining the..." current Tag: Visual edit
14:3014:30, 9 July 2025 diff hist +26 Main Page No edit summary Tag: Visual edit
14:3014:30, 9 July 2025 diff hist +1,088 N 4.1.1.3 Stacks (LIFO) Created page with "=== 4.1.1.3 Stacks: Last In, First Out (LIFO) === Imagine a stack of plates. When you put a new plate on, it goes on top. When you take a plate off, you always take the one from the very top. A '''stack''' in computer science works exactly like this! It follows a rule called '''LIFO''', which stands for '''Last In, First Out'''. The last item you put ''in'' the stack is always the first item you can take ''out''. * '''Putting items on a stack is called "pushing."''' (L..." current Tag: Visual edit
14:2314:23, 9 July 2025 diff hist +52 Main Page No edit summary Tag: Visual edit
14:2214:22, 9 July 2025 diff hist +515 4.1.1.2 Linked Lists (Singly, Doubly, Circular) No edit summary current Tag: Visual edit
14:1214:12, 9 July 2025 diff hist +2,468 N 4.1.1.2 Linked Lists (Singly, Doubly, Circular) Created page with "=== 4.1.1.2 Linked Lists: A Chain of Information === Imagine a treasure hunt where each clue tells you where to find the ''next'' clue. A '''linked list''' is similar! Instead of items being in numbered boxes like an array, each item (called a "node") holds its own piece of information ''and'' a pointer (or link) to the ''next'' item in the list. They're like a chain where each link knows where the next link is. This is different from arrays because items in a linked li..." Tag: Visual edit
14:1014:10, 9 July 2025 diff hist +124 Main Page No edit summary Tag: Visual edit
14:0914:09, 9 July 2025 diff hist +201 4.1.1 Linear Data Structures No edit summary current Tag: Visual edit
14:0614:06, 9 July 2025 diff hist +1,253 4.1.1 Linear Data Structures →4.1 Linear Data Structures: Organizing Information in a Line Tag: Visual edit
13:5713:57, 9 July 2025 diff hist +744 N 4.1.1 Linear Data Structures Created page with "= 4.1 Linear Data Structures: Organizing Information in a Line = Imagine you have a bunch of toys, and you want to keep them organized. You could line them up on a shelf, put them in a box one on top of the other, or make a train with them. In computer science, we have special ways to organize information (called "data") too! These ways are called '''data structures'''. Think of data structures as different kinds of containers or arrangements for your data. Just like..." Tag: Visual edit

23:0323:03, 8 July 2025 diff hist +6 13.5 Ethical AI & Societal Impact →13.5 Ethical AI & Societal Impact current Tag: Visual edit
23:0223:02, 8 July 2025 diff hist +64 13.5 Ethical AI & Societal Impact No edit summary Tag: Visual edit
22:2922:29, 8 July 2025 diff hist +3,022 N 13.5 Ethical AI & Societal Impact Created page with "== 13.5 Ethical AI & Societal Impact == Imagine you have a super-smart robot that can do amazing things. That's a bit like Artificial Intelligence, or AI! But just like we need to make sure we use our own smarts for good, we also need to make sure AI is used in a fair and helpful way for everyone. This section is all about thinking about what's right and wrong when it comes to AI, and how AI can change our world. === 13.5.1 Bias in AI, Privacy Concerns === Sometimes, AI..." Tag: Visual edit
22:0222:02, 8 July 2025 diff hist +42 Main Page No edit summary Tag: Visual edit
19:5619:56, 8 July 2025 diff hist +32 Main Page No edit summary Tag: Visual edit
19:5519:55, 8 July 2025 diff hist +1,100 N 10.4.2 Activation Functions Created page with "=== 10.4.2 Activation Functions === After a perceptron does its math, it needs to decide whether to "fire" or "activate" and send a signal to the next layer. This is where '''activation functions''' come in! Think of it like a light switch. If the total "strength" of the incoming signals is strong enough, the switch turns on, and the perceptron sends a signal forward. If it's not strong enough, the switch stays off. Activation functions are mathematical rules that help..." current Tag: Visual edit
19:3419:34, 8 July 2025 diff hist +58 Main Page No edit summary Tag: Visual edit
19:3319:33, 8 July 2025 diff hist +407 10.4.1 Perceptrons, Layers →10.4.1 Perceptrons, Layers current Tag: Visual edit
19:1819:18, 8 July 2025 diff hist +387 10.4 Neural Networks & Deep Learning (Basic Concepts) No edit summary current Tag: Visual edit
19:1619:16, 8 July 2025 diff hist +1,474 N 10.4.1 Perceptrons, Layers Created page with "=== 10.4.1 Perceptrons, Layers === Let's break down our "fake brain": * '''Perceptron (The Basic Neuron)''': Think of a '''perceptron''' as a single, tiny decision-maker. It takes in some information (like numbers), does a little math with it, and then spits out a "yes" or "no" answer, or a number. It's like a tiny switch that turns on or off based on what it "sees." Imagine you're deciding if you should bring an umbrella to school. Your perceptron might take in inform..." Tag: Visual edit
19:0819:08, 8 July 2025 diff hist +4 Main Page No edit summary Tag: Visual edit
19:0619:06, 8 July 2025 diff hist +853 N 10.4 Neural Networks & Deep Learning (Basic Concepts) Created page with "== 10.4 Neural Networks & Deep Learning (Basic Concepts) == Imagine your brain! It's super good at learning new things, like riding a bike or recognizing your friend's face. It does this because it has billions of tiny cells called '''neurons''' that are all connected. When you learn, these connections get stronger or weaker, helping your brain make sense of the world. '''Neural Networks''' in computer science are like simplified versions of your brain. They are compute..." Tag: Visual edit
18:5618:56, 8 July 2025 diff hist +30 Main Page No edit summary Tag: Visual edit
18:5518:55, 8 July 2025 diff hist +4,957 N 10.3.4 K-Means Clustering Created page with "== 10.3.4 K-Means Clustering == Imagine you have a big pile of different toys, and you want to sort them into groups that are similar. You don't have any labels for the groups yet, but you want to find natural ways to put them together. K-Means clustering is like a smart helper that does this for you! It's a way for computers to sort a bunch of information (like your toys) into different groups, called '''clusters''', without being told what the groups should be. The go..." current Tag: Visual edit
18:2318:23, 8 July 2025 diff hist +41 Main Page No edit summary Tag: Visual edit

9 July 2025

8 July 2025