Input Devices

To broaden learners’ identification and knowledge of the range of computer systems

• • Timeline of Computer History

  • From the Pencil to the Keypad (video)

  • Hardware and Software

  • ICT systems and their usage

  • Input devices, processing and output devices

A. describe the principles of operation (how each device works) of a range of input devices including 2D and 3D scanners, barcode readers, digital cameras, keyboards, mice, touch screens, microphones

• • Computers at How Stuff Works

  • Input device

  • Input Devices (on ICT Lounge )

  • Input device (Tech Terms)

  • Touch Screens

  • Input device (Computer Hope)

B. describe how these principles are applied to real-life scenarios, for example: scanning of passports at airports, barcode readers at supermarket checkouts, and touch screens on mobile devices

C. describe how a range of sensors can be used to input data into a computer system, including light, temperature, magnetic field, gas, pressure, moisture, humidity, pH/acidity/alkalinity and motion/infra-red

• • Analogue signals and digital data

  • Analog vs Digital

  • Sensors

  • The role of sensors

  • Sensor Basics by Cutler-Hammer

  • Sensors: Types and Characteristics

  • Transducers

  • Sensor Tutorials

  • Converting analog data to binary

D. describe how these sensors are used in real-life scenarios, for example: street lights, security devices, pollution control, games, and household and industrial applications

ZAK Notes