Hardware hw-EH

Hardware hw-EH

1. Input and output devices

   • Input
     • Input devices allow us to enter raw data into a computer. Input devices can be manual or automatic.
     • A few examples of input devices are: a keyboard, mouse, joystick, microphone and touchscreen
       • A mouse would allow a wide range of control as it allows you to click the location in what you would like to do or where you would like to type.
   • Output
     • They let the computer communicate with the user
     • A few examples of out devices are: monitors,speakers and printers.
       • Speakers would be suitable for control, as you are able to change the volume of the speakers
   • Specific needs
     • Output
       • A output would be audio descripition, whih would allow for those with hard of hearing to be able to hear and understnd whih on thde computer or in a film.
     • Input
       • A input devices would be a keyboard with braille, so a blind person would be able to knowx which letter they are typing.

2. Secondary storage

   • They let the computer communicate with the user.
   • Optical
     • Use lasers to read information from disks and in some cases write information to disks
   • Magnetic
     • Uses different patterns of magnetisation in a magnetisable material to store data and is a form of non-volatile memory
   • Solid state
     • Solid-state means no moving parts.
       • Devices store data using a special type of memory called flash memory