Input, Output and Storage Devices

Input, Output and Storage Devices

1. Input Devices

   • Keyboard
   • Specialist Keyboards
     • Designed for disabled users
   • Mouse
   • Microphone
     • Talking on a mobile phone
     • Video Conferencing
   • Keypad
     • Fewer keys than a keyboard
   • Touch pad
     • The mouse of a laptop
   • Remote control
     • Wired
     • Wireless
   • Scanner
     • Software applications such as word processors
   • Bar cide reader or scanner
   • Chip and Pin Reader
     • Card details are read from the card and checked using the PIN entered
   • Magnetic stripe reader
     • If the card has no chip or the chip cannot be read
   • Sensors
   • Camera

2. Output Devices

   • Monitor
     • Used to display the processing
       • CCTV
   • Printer
     • Laser Printers
       • Large and high quantities in a short time
   • Plotter
     • Print drawings onto paper
   • Actuators
     • Motors for controlling systems
       • Used to open an automatic door
       • Move a conveyor belt
       • Turn on a water sprinkler by opening a valve
   • Speakers, earphones and headphones
     • Audio, files, music, movies and voices
     • Used in smartphones and video conferences
   • Data or Digital Projector
     • Project an enlarged image

3. Storage Devices

   • Hard disk drive (HDD)
     • Use magnetic disks for storing software and data in files.
     • Files can be read, edited, re-written or deleted/
     • Used for stoage in the operating system, files and data when not in use or if the computer is turned off.