1. CAD and CAG

2. Today’s Lesson Input/Output devices File Storage and management CAD modelling Software Packages

3. Input/Output devices 1 2 5 6 11 7 3 4 8 109 12 13

4. DEVICENUMBERINPUT/OUTPUT Mouse1Input Fax2Output Joystick3Input Drum Plotter4Output Keyboard5Input Printer6Output Monitor7Output Digital Camera8Input Trackerball9Input Scanner10Input Graphics Tablet11Input Flatbed Plotter12Output Modem13Input and Output

5. File Storage and Management Files and Folders

6. Removable Discs Removable discs have three important uses:  Copying/moving files – transferring and moving files between machines.  Backing-up files – To ensure that there is a duplicate copy in case files are accidentally corrupted or deleted.  Archiving files – Files that are not being used can be removed from the hard drive to free up valuable storage space.

7. Types of Discs  Zip disc – similar to floppy disc but with much greater storage. 100MB  CD-R – Optical medium, storage capacity 650MB  DVD – similar to CD, storage capacity 4.7GB  Memory Stick/Pen Drive – more compact, more reliable. Storage 128MB,32GB Removable Discs

8. 3D CAD Modelling (Advantages) Can be produced more quickly Can be modified more quickly Enables the designer to try texture and colour on the model

9. Can be used to test designs before they are finished. Can be realistically rendered 3D CAD Modelling (Advantages) http://members.iinet.net.au/~velletri/stirlingengines/Stirling_Anime.html

10. 3D CAD Modelling (Advantages) Can be sent easily to remote locations Take up less storage space than built models Can be used to create realistic simulations

11. Wireframe Model: The object is built up using a series of connected lines. Surface Model: The object is built up by drawing the surfaces of an object. Solid model: Built up using simple geometric shapes such as cones, cylinders etc. these can be added or subtracted to produce more complex models. Surface rendered: The object is rendered with a solid looking surface. Colours, shading and textures can be added to produce realistic looking images. CAD Modelling (Types)

12. Simulation and Animation Animation is moving but it is not interactive. Roller coaster animation. Simulation – the user can interact with the programme, e.g. flight simulator. Flight simulator