Input and output devices IT

• What is the main focus of Unit 1 in Cambridge Technicals in IT (OCR)?

  Fundamentals of IT
• What should learners understand about computer hardware according to LO1?

  Different types of computer hardware required for various computer systems
• What is the QWERTY layout designed for?

  To match common words in the English language
• What are the two categories of devices listed under computer hardware?

  Input devices and output devices
• What are the benefits of QWERTY keyboards?

  Low cost, ergonomic design, and familiarity for users
• What are the key learning outcomes (LOs) in Cambridge Technicals in IT (OCR)?

  • LO1: Understand computer hardware
  • LO2: Understand computer software
  • LO3: Understand business IT systems
  • LO4: Understand employability and communication skills in IT
  • LO5: Understand ethical and operational issues and threats to computer systems
• What is a limitation of traditional keyboards?

  They can be difficult for users with visual and/or motor impairments
• What are the limitations of using a microphone for input?

  Background noise can impact recording quality, and low-cost microphones may be fragile
• What is the primary function of a mouse?

  To control what is happening onscreen
• How does a microphone function as an input device?

  It converts analogue sound waves to digital data
• What is the primary use of a joystick?

  To input movement/direction
• What is a benefit of using a games controller?

  It provides a better user experience for gaming with more functions
• What is a limitation of a barcode reader?

  If the barcode is damaged, it may not be readable
• What is the function of a scanner?

  To convert a physical document into an electronic document
• What type of data can sensors read?

  Physical properties such as light, sound, heat, motion, and GPS
• What is a benefit of assistive devices for users with disabilities?

  They allow users to input data when traditional devices don't work
• What are the generic benefits of assistive devices?

  They are designed for specific needs and provide independence to users
• What is the primary function of output devices?

  To produce a hard copy of something digital
• What is a plotter used for?

  To produce plans and diagrams
• What is a limitation of visual display units (VDUs)?

  Visually impaired users may struggle to access the content
• What is a benefit of using a projector?

  It provides a larger, more accessible visual output than traditional VDUs
• What are the general limitations of printers?

  • Ongoing cost of consumables (paper/ink/toner)
  • Require maintenance over time
  • Some can be noisy and relatively slow
  • Need to know which printer is best fit for each job
• What are the benefits of using assistive devices for input?

  • Designed for specific needs
  • Allow persons with disabilities to input data
  • Provide independence and confidence to users
• What are the limitations of assistive devices?

  • More expensive than traditional devices
  • Can be intrusive to the work environment
  • Require skills to use effectively
• What is the primary function of a webcam?

  To capture video for recording or real-time communication
• What is a potential security concern with webcams?

  Unauthorized access to webcams remotely
• What are the benefits of using a graphics tablet?

  Offers more natural movements for accurate drawings and designs
• What is a limitation of a graphics tablet?

  Both the tablet and electronic pen are susceptible to loss and damage
• What is the function of a magnetic strip reader?

  To read the information stored on a magnetic strip
• What is a limitation of magnetic strip readers?

  Cards can be easily lost, damaged, or stolen
• What is a benefit of using a barcode reader?

  It is quick and easy to use compared to manual entry
• What is a limitation of using sensors?

  They can give inaccurate readings due to tampering
• How do assistive keyboards cater to users with disabilities?

  They are designed to suit different needs, such as larger buttons or Braille
• What is the purpose of assistive trackballs?

  To control the cursor on a computer
• What is a benefit of using assistive devices for input?

  They allow users with disabilities to input data when traditional devices don't work
• What is a limitation of assistive devices?

  They can be more expensive than traditional devices
• What is a limitation of printers?

  They require ongoing maintenance and consumables
• What is a benefit of using a plotter?

  It produces large-scale drawings based on digital designs
• What is a limitation of visual display units (VDUs)?

  They can be fragile and prone to damage
• What is the primary function of a projector?

  To output a visual representation of content from a computer