Human Computer Interfaces - Gregory Meddory

Human Computer Interfaces - Gregory Meddory

1. Operating Systems

   • Are Softwares
   • Used to control the hardware directly
   • Used to run the applications software
   • Manage and control devices
   • Provide a user interface
   • Hide the Complexity of hardware from theuser
   • Deal with errors
   • Provide interface between applications software and hardware
   • Allow instillation of new hardware and software
   • Handle storage of data
   • Maximise memory use
   • Automatically recognise new hardware
   • Organise resources when tasks are being worked on simultaneously

2. Types Of User Interface

   • GUI
     • Features such as icons e.t.c.
     • +
       • No specialist language/instructions needed
       • Icons allow beginners to get to programs or items they want
     • -
       • More memory is needed
       • Increased processing requirements are needed to run the GUI
   • Command line
     • Type a series of commands
     • +
       • Quicker than going through the different windows
     • -
       • Difficult for beginners
       • All instructions have to be remembered
   • Voice driven
   • Menu/Dialogue boxes
     • Menus where you choose what you do
   • Touch sensetive
   • Biometrics

3. WIMP

   • GUI's are very popular, most have the same WIMP features
   • Windows
   • Icons
   • Menus
   • Pointers

4. Voice driven

   • voice recognition
   • Used to issue commands
   • issue commands to the operating system
   • Enter data into the application software

5. Touch sensetive

   • Devices include
     • MP3 players
     • Mobile phones
     • Information kiosks

6. Biometrics

   • Instead of passwords, fingerprints are used to gain access
   • System will automatically recognize and allow access