Computer science

• Writing code


  Using blocks
• Algorithms


  A set of instructions step by step to solve a problem
• Computational thinking


  • Breaking down into smaller problems
• Decomposition


  • Breaking down into smaller problems
• Abstraction


  • Hiding unnecessary details
• Pattern recognition


  • Finding similarities to solve a problem
• Components of algorithms


  • Complete (finishing)
  • Accurate (the exactness)
  • Unambiguous (clear)
  • Efficient (the ratio of output and input)
  • Consistent (same input and output)
• Pseudocode


  A way of writing code in plain text English
• Flowcharts


  A diagram that represents an algorithm using standard symbols
• Machine learning (AI)


  Issues concerning Machine learning
• Issues concerning Machine learning

  • Biassed
  • Take jobs in the future
• Benefits and uses of machine learning

  Fast and more efficient (less errors)
• Types of machine learning

  • Facial recognition
  • Chatbots
• Coding concepts


  • Sequence (the order of the instructions)
  • Selection (a decision or question (if/else))
  • Iteration (repetition)
• Hardware


  Micro:bits - the physical parts of a computer (monitor/microphone)
• Software


  The programs that run on a computer (games/code)
• Inputs and outputs


  • Inputs (keyboard/mouse)
  • Outputs (text/information)
• Variables


  Placeholders for values in code