Software and Hardware components of an information system

Descrição

A2 ICT (2. Software and hardware components of an information system) Mapa Mental sobre Software and Hardware components of an information system, criado por eleanorbradbury em 10-04-2013.
eleanorbradbury
Mapa Mental por eleanorbradbury, atualizado more than 1 year ago
eleanorbradbury
Criado por eleanorbradbury aproximadamente 11 anos atrás
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Resumo de Recurso

Software and Hardware components of an information system
  1. The difference between hardware and software
    1. Hardware
      1. Something you can touch
        1. The physical components of a system
        2. Software
          1. the programmes used on a computer
            1. Examples cannot be things like microsoft or word
          2. Software and hardware standardisation
            1. Incompatibilities
              1. cost issues
                1. Limited technical support
                  1. limited availability means replacements are hard to find
                  2. Input, Output and storage devices
                    1. input devices
                      1. external data being put into the system
                        1. keyboard
                          1. graphics tablet
                            1. scanner
                            2. output device
                              1. getting data in the system out of the system
                                1. monitor
                                  1. plotter
                                    1. printer
                                    2. storage devices
                                      1. devices to hold data
                                        1. hard drive/ external hard drive
                                          1. tape
                                            1. memory key
                                          2. specialist hardware devices
                                            1. Visually impaired
                                              1. Braille keyboard
                                                1. Microphone
                                                  1. Loudspeaker
                                                    1. Braile printer
                                                    2. Motor impaired
                                                      1. Mouth stick
                                                        1. Puff stick
                                                          1. Tongue activated joystick
                                                            1. Eye-typer
                                                              1. foot mouse
                                                            2. Specialist software devices for physically disabled users
                                                              1. text to speech system
                                                                1. output using a speech synthesiser
                                                                  1. visually impaired
                                                                  2. speech to text system
                                                                    1. inputs spoken word
                                                                      1. can be commands
                                                                      2. Auditory feedback system
                                                                        1. plays sound in response to user activity
                                                                          1. eg opening windows
                                                                          2. Screen magnifyer
                                                                            1. predictive text
                                                                              1. suggests a word from a few letters input
                                                                                1. user does not have to type whole word
                                                                                2. sticky keys
                                                                                  1. system acts as though key is held down
                                                                                    1. motor impaired
                                                                                  2. different types of software
                                                                                    1. operating system
                                                                                      1. core software
                                                                                        1. controls allocation of resources
                                                                                        2. utilities
                                                                                          1. assists in monitoring and maintaining the computer system
                                                                                            1. eg - virus checkers
                                                                                            2. user interface
                                                                                              1. allows user to interact with application or OS
                                                                                                1. GUI
                                                                                                  1. WIMP
                                                                                                  2. application software
                                                                                                    1. programmes that allow the computer to solve problems
                                                                                                      1. eg word processor
                                                                                                    2. Characteristics of different user interfaces
                                                                                                      1. Command line
                                                                                                        1. Types intstructions into a control box
                                                                                                          1. uses less memory than a GUI
                                                                                                            1. can damage the system
                                                                                                              1. only used by expert users
                                                                                                              2. form
                                                                                                                1. limited area on the screen with boxes to fill in
                                                                                                                  1. labels to help the user
                                                                                                                    1. guide the user through different processes
                                                                                                                      1. Dialogue interface which asks questions
                                                                                                                      2. menu
                                                                                                                        1. series of related items that can be selected
                                                                                                                          1. cascaded
                                                                                                                            1. GUI or WIMP
                                                                                                                              1. Context sensitive
                                                                                                                                1. structured
                                                                                                                                2. natural language
                                                                                                                                  1. allows the user to use their own language to interact
                                                                                                                                    1. spoken or written
                                                                                                                                      1. voice recognition
                                                                                                                                        1. Handwriting

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