Control

Description

Computer control
James Rushton
Mind Map by James Rushton, updated more than 1 year ago
James Rushton
Created by James Rushton over 9 years ago
9
0

Resource summary

Control
  1. Computer control means that a computer is part of the control system
    1. Sensors
      1. Device to measure some physical quantity
        1. Heat
          1. Light
            1. pH
              1. Humidity
              2. Advantages
                1. Can operate 24/7 without needing to rest
                  1. Work without wages
                    1. Can be used in dangerous environments
                    2. Disadvantages
                      1. May cost a lot of money to develop
                        1. If there is a power cut or the computer malfunctions it will not work
                        2. ADC (Analogue to Digital Converter)
                          1. Sensors take analogue measurements.
                            1. It must be converted to digital (0s and 1s)
                            2. Process
                              1. Computers can only follow rules that is has programmed in the control system
                              2. Output
                                1. Sending the message and the resulting action
                                2. Open loop feedback
                                  1. Takes no account of the output
                                    1. Simple to create
                                    2. Feedback system
                                      1. The output is fed back to become part of the input
                                        1. More precise control
                                          1. More complicated to create
                                          2. Actuator
                                            1. Allows a computer to control movement or action
                                            2. Examples
                                              1. Washing machines
                                                1. Automatic doors
                                                  1. Traffic light systems
                                                  Show full summary Hide full summary

                                                  Similar

                                                  Types and Components of Computer Systems
                                                  Jess Peason
                                                  Input Devices
                                                  Jess Peason
                                                  Output Devices
                                                  Jess Peason
                                                  Networks
                                                  Will8324
                                                  General ICT Quiz
                                                  leahshaw
                                                  ICT Revison Flash Cards
                                                  Arun Johal
                                                  FLAT FILE VS RELATIONAL DATABASE
                                                  rosiejones
                                                  Online World - Learning Aim A
                                                  andysedge
                                                  Business Aims and ICT Strategies
                                                  scrt
                                                  User Interfaces
                                                  Skeletor
                                                  General ICT Quiz
                                                  Jade Fantom