How computers work

From switches and logic gates to programs and algorithms. Watch them in this order.

  1. 1
    Early Computing: Crash Course Computer Science #1

    CrashCourse

    A quick history of computing, to set the scene.

  2. 2
    10:07
    Boolean Logic & Logic Gates: Crash Course Computer Science #3

    CrashCourse

    Boolean logic and logic gates: how electricity can make decisions.

  3. 3
    10:46
    Representing Numbers and Letters with Binary: Crash Course Computer Science #4

    CrashCourse

    How numbers and letters are stored as ones and zeros.

  4. 4
    11:10
    How Computers Calculate - the ALU: Crash Course Computer Science #5

    CrashCourse

    The ALU: how a computer actually does arithmetic.

  5. 5
    11:38
    The Central Processing Unit (CPU): Crash Course Computer Science #7

    CrashCourse

    The CPU, the part that runs every instruction.

  6. 6
    12:17
    Registers and RAM: Crash Course Computer Science #6

    CrashCourse

    Registers and RAM: how a computer remembers.

  7. 7
    11:44
    Intro to Algorithms: Crash Course Computer Science #13

    CrashCourse

    Intro to algorithms: what makes one solution better than another.

  8. 8
    10:07
    Data Structures: Crash Course Computer Science #14

    CrashCourse

    Data structures: how programs organise information.

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