iGCSE Computer Science
  • Introduction
  • Past Papers
    • Set of 2019
    • Set of 2021
  • Pre-Exam Notes
    • Paper 1
    • Paper 2
  • Data Representation
    • 1.1 Number Systems
    • 1.2 Text, Sound & Images
    • 1.3 Data Storage & File Compression
  • Data Transmission
    • 2.1 Types & Methods of Data Transmission
    • 2.2 Methods of Error Detection
    • 2.3 Symmetric & Asymmetric Encryption
  • Hardware
    • 3.1 Computer Architecture
    • 3.2 Input & Output Devices
    • 3.3 Data Storage
    • 3.4 Network Hardware
  • Software
    • 4.1 Types of Software & Interrupts
    • 4.2 Types of Programming Languages, Translators & IDEs
  • The Internet & Its Uses
    • 5.1 The Internet & The World Wide Web
    • 5.2 Digital Currency
    • 5.3 Cyber Security
  • Automated & Emerging Technologies
    • 6.1 Automated Systems
    • 6.2 Robotics
    • 6.3 Artificial Intelligence
  • Databases (P2)
    • 9.1 Databases
  • Boolean Logic (P2)
    • 10.1 Logic Gates
  • Miscellaneous (P2)
    • Flowchart Symbols
    • Standard Methods of Solution
    • Validation & Verification
    • Identifying Errors
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  1. Boolean Logic (P2)

10.1 Logic Gates

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Last updated 8 months ago

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Gates & Truth Tables

Exam Questions

NOT Gate 0 = 1 1 = 0

XOR Gate 0 . 0 = 0 1 . 0 = 1 1 . 1 = 0

AND Gate 0 . 0 = 0 1 . 0 = 0 1 . 1 = 1

NAND Gate 0 . 0 = 1 1 . 0 = 1 1 . 1 = 0

OR Gate 0 . 0 = 0 1 . 0 = 1 1 . 1 = 1

NOR Gate 0 . 0 = 1 1 . 0 = 0 1 . 1 = 0

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