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How A Computer
Works - OCL
Key Words
Lesson 1
What Is A Computer?
Computer, Algorithm, Input device, Output Device, Process,
Hardware
Lesson Objectives
• Understand what a computer is and how they can come in various forms.
• Understand how computers receive commands and data
• Understand what ‘processing’ means
• Understand how computers can output information
Starter Activity
‘What is a
computer?’
Have a think about this question,
If you want, write it down on a
whiteboard or make notes of
this lesson
So….
What is a Computer?
What is a Computer?
1) Generally considered a programmable machine
Or
1) An electronic device which takes in data, processes it and then outputs the result.
Input Process Output
Which of these is a computer?
Is this a computer?
Is this a programmable
machine?
Is this a device which
takes in data/commands,
then processes it and
outputs the result
How is a washing machine a computer?
Input
Button press inputting
settings/program
Process
Decisions made as to when
water added, spin is performed
or temperature changed
Output
Valves opened/closed
Heater turned on/off
Motors on/off
Is this a computer?
Is this a programmable
machine?
Is this a device which
takes in data/commands,
then processes it and
outputs the result
How is a toaster a computer. HINT: Input, Output, Process
Answer: Which of the 8 photos are computers?
Answer: ALL OF THEM!
They are ALL programmable machines, and
they all take in data then process it and output
a result
How is data put into a
computer (INPUT) and how
is it given back to the user
(OUTPUT)?
Input & Output Devices
Input devices of a PC Output devices of a PC
These all send information to the
computer
These all recieve information from
the computer.
What are the input and
output devices of a toaster?
Have a Guess
Have a Guess
Input & Output Devices
Input devices of a Toaster Output devices of a Toaster
These all send data/information to
the toaster’s computer
These all receive data/information
from the toaster’s computer
Online Coding Lessons - OCL
Everyone Can Code!

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Lesson 1

  • 1. How A Computer Works - OCL Key Words Lesson 1 What Is A Computer? Computer, Algorithm, Input device, Output Device, Process, Hardware
  • 2. Lesson Objectives • Understand what a computer is and how they can come in various forms. • Understand how computers receive commands and data • Understand what ‘processing’ means • Understand how computers can output information
  • 3. Starter Activity ‘What is a computer?’ Have a think about this question, If you want, write it down on a whiteboard or make notes of this lesson
  • 4. So…. What is a Computer?
  • 5. What is a Computer? 1) Generally considered a programmable machine Or 1) An electronic device which takes in data, processes it and then outputs the result. Input Process Output
  • 6. Which of these is a computer?
  • 7. Is this a computer? Is this a programmable machine? Is this a device which takes in data/commands, then processes it and outputs the result
  • 8. How is a washing machine a computer? Input Button press inputting settings/program Process Decisions made as to when water added, spin is performed or temperature changed Output Valves opened/closed Heater turned on/off Motors on/off
  • 9. Is this a computer? Is this a programmable machine? Is this a device which takes in data/commands, then processes it and outputs the result How is a toaster a computer. HINT: Input, Output, Process
  • 10. Answer: Which of the 8 photos are computers? Answer: ALL OF THEM! They are ALL programmable machines, and they all take in data then process it and output a result
  • 11. How is data put into a computer (INPUT) and how is it given back to the user (OUTPUT)?
  • 12. Input & Output Devices Input devices of a PC Output devices of a PC These all send information to the computer These all recieve information from the computer.
  • 13. What are the input and output devices of a toaster? Have a Guess Have a Guess
  • 14. Input & Output Devices Input devices of a Toaster Output devices of a Toaster These all send data/information to the toaster’s computer These all receive data/information from the toaster’s computer
  • 15. Online Coding Lessons - OCL Everyone Can Code!

Editor's Notes

  1. Read everything on the slide then say ‘Enjoy Learning!’
  2. Your Starter Activity: ‘What is a computer?’ Have a think about it…..if you do make notes, feel free to submit your notes at the end of our quizzes
  3. So….Let’s go over that question, ‘What is a computer
  4. Read everything aswell as the extra notes below: Input: Which means ‘putting into’ Process: ‘Which means making decisions/calculations’ Output: ‘Which means getting out of’
  5. Please pause the video and guess which of those 8 photos are computers?
  6. Is the washing machine a programmable machine & is it a device which takes in data/commands, then processes it and outputs the result
  7. Say the text in the black boxes then read the first shape after its animation and so on
  8. Is the toaster a programmable machine & is it a device which takes in data/commands, then processes it and outputs the result. Have a guess, how is a toaster a computer. Remember back to the washing machine table we just saw,
  9. Read everything on the slide
  10. Read the question Answer: Using Input Devices & Output Devices
  11. Read everything
  12. Read everything
  13. Read everything
  14. Thats it for our sample lesson, there’s an activity booklet below and a quiz to the left