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© Boardworks Ltd 20131 of 8
Teacher’s notes in the Notes Page
Flash activity (these are not editable)Icons:
Unit 7 Systems and Control
Worksheet or support sheet available
7.2 Control devices
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Curriculum links
This presentation supports the following areas of knowledge in the Naace Curriculum Framework for KS3 ICT:
This presentation supports the following sectionsof the Programme of Study for KS3 Computing:
design, use and evaluate computational abstractions that model the state and behaviour of real-world problems and physical systems
understand the hardware and software components that make up computer systems, and how they communicate with one another and with other systems
undertake creative projects that involve selecting, using, and combining multiple applications, preferably across a range of devices, to achieve challenging goals, including collecting and analysing data and meeting the needs of known users
Skills – Control, data-logging and programming, problem solvingTechnology in the World – Use of ICT in practical contextsTechnical Understanding – How computing devices work, embedded systems, programming and control
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Learning objectives
By the end of this presentation we will have learned:
what a control device is
where control devices are used in the real world
how control devices work.
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A world without control devices
Imagine that you wake up tomorrow morning and all technology has stopped working.
Your alarm clock wouldn’t sound.
Many simple, day-to-day activities would become very difficult without technology to help us.
Your shower would be cold.
Your toaster wouldn’t operate.
Cars and buses wouldn’t work, so you would have to walk to school.
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Control devices
Fortunately, you have grown up in the age of the microprocessor. This small device can be found in many household objects, and has worked tirelessly to make your life easier since before you were born.
They can repeat the same task many times in exactly the same way.
A control device uses a microprocessor, sensors and output devices to complete tasks. Control devices have many advantages:
They can go into dangerous places, like nuclear reactors.
They never get bored or tired and never need a break.
Where else could a control device be used?
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Spot the control device
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Input process output model
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IPO model in a kettle