computer systems

output
1. printer - that excepts data from a computer and prints it onto paper and it can be things like text and photos
2. Monitor - displays the output as images on the screen and this means text and the general display too
3. Speakers - converts the file into sound
4. LED - lights when there is an output
input
1. keyboard - allows the user to enter data by pressing keys
2. mouse - allows the user to click icons using the movement of the object and the buttons
3. Microphone - picks up the sound created and converts it into digital input data
4. Heat sensor - detects the surrounding temperature and inputs the data
5. Touch screen - detects the fingers movement and inputs the data for the computer to use
storage
1. software
2. Optical
  1. DVD - follows the same system of retrieving the data as a cd but can store more data so is normally used to store films
  2. Blu Ray - functions the same as a DVD and CD but the dots are much closer together so it can store more data the resolution of the image is much better and uses a blue ray
  3. CD - it has dots and depressions on the surface that are read as either a 0 or a 1 by a red laser. It has a small capacity so is normally used to store smaller files like music files
3. Solid state
  1. memory stick - you are able to save or copy files onto the memory stick
  2. SD Card - rows of small memory chips work together to store data
4. Magnetic
  1. Magnetic Tape - can be used for backing up servers due to the high capacity, durability and fairly low cost per GB
  2. Magnetic disc - stores and retrieves data using disks with magnetic spots that a needle picks up

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computer systems

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	Created by Amber Morgan over 6 years ago