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Season 1 Episode
- Season 1 Early Computing
- Season 1 Electronic Computing
- Season 1 Boolean Logic & Logic Gates
- Season 1 Representing Numbers and Letters with Binary
- Season 1 How Computers Calculate - the ALU
- Season 1 Registers and RAM
- Season 1 The Central Processing Unit (CPU)
- Season 1 Instructions & Programs
- Season 1 Advanced CPU Designs
- Season 1 Early Programming
- Season 1 The First Programming Languages
- Season 1 Programming Basics: Statements & Functions
- Season 1 Intro to Algorithms
- Season 1 Data Structures
- Season 1 Alan Turing
- Season 1 Software Engineering
- Season 1 Integrated Circuits & Moore’s Law
- Season 1 Operating Systems
- Season 1 Memory & Storage
- Season 1 Files & File Systems
- Season 1 Compression
- Season 1 Keyboards & Command Line Interfaces
- Season 1 Screens & 2D Graphics
- Season 1 The Cold War and Consumerism
- Season 1 The Personal Computer Revolution
- Season 1 Graphical User Interfaces
- Season 1 3D Graphics
- Season 1 Computer Networks
- Season 1 The Internet
- Season 1 The World Wide Web
- Season 1 Cybersecurity
- Season 1 Hackers & Cyber Attacks
- Season 1 Cryptography
- Season 1 Machine Learning & A.I.
- Season 1 Computer Vision
- Season 1 Natural Language Processing
- Season 1 Robots
- Season 1 Psychology of Computing
- Season 1 Educational Technology
- Season 1 The Future of Computing
Crash Course Computer Science - Season 1 Episode 5 How Computers Calculate - the ALU
0.00 12 minutes Today we're going to talk about a fundamental part of all modern computers. The thing that basically everything else uses - the Arithmetic and Logic Unit (or the ALU). The ALU may not have to most exciting name, but it is the mathematical brain of a computer and is responsible for all the calculations your computer does! And it's actually not that complicated. So today we're going to use the binary and logic gates we learned in previous episodes to build one from scratch, and then we'll use our newly minted ALU when we construct the heart of a computer, the CPU, in episode 7.
