2. (a) For your chosen product: name two materials/ingredients/components that could be used during manufacture state two properties of each material/ingredient/component that makes it suitable for use. No marks will be awarded for repeated answers  First material/ingredient/component First material/ingredient/component : Galvanized Steel Property 1:Hard and tough Property 2: Does not rust. Second material/ingredient/component : Aluminium Property 1: Does not rust Property 2: Good strength-to-weight ratio, light weight Third material/ingredient/component : PVC Property 1: 100% Water resistant Property 2: Resistant to mildew, solvent, grease and some acids  

All materials/ingredients/components have some disadvantages in their use. Select one of the materials/ingredients/components given in your answer to Question 2 (a) and write it below.   Material/ingredient/component selected: Steel Reason: Not environmentally friendly comes from non renewable sources and if not treated will rust (ferrous metal) Question 2 (a) State two ways in which ICT software can be used during the design of your chosen product. Modelling ideas using 2D & 3D software Production of graphics Question 2 (a) State two ways in which ICT software can be used during the manufacture of your chosen product. Moulding/cutting wheels using milling machine Testing of material and structural strength Cutting vinyl stickers

Question 2 (a) State two ways in which you can use ICT to undertake research. Web ( Existing Products) Materials (costs, manufacturing methods, new materials) Questionnaires (b) (i) State one way in which you can use ICT to present the results of your research. Tables and Graphs (using Microsoft excel) (ii) State three reasons why you consider this to be an appropriate method of presentation. Quick and visual Easy to compare one thing against another Range of data can be compared Results can be sent easily via e-mail

(b) State what the letters CAD and CAM represent. Computer Aided Design Computer Aided Manufacture (c) State two benefits of using CAD when designing your chosen product. Easy to alter/modify designs Can be sent to companies via e-mail Drawings can be sent to manufacturing equipment for manufacturing Many manufacturers rely on computers in their manufacturing processes. (d) List three reasons why this has occurred. The reasons must be different from those given in 2 (c) above. Accuracy (no human error) Once set up will run indefinitely (round the clock) After set up costs products will become cheaper

Question 2 continued (e) Explain, giving reasons, why CAM might not be used to make a prototype. It might be too expensive to produce drawings/moulds etc Modelling by hand may be needed to see how different parts could fit together Simple modelling may be required first to allow for more complex designs to be drawn up later Costs as needles manufacturing processes/mistakes can be avoided Technology is now extensively used in retail shop outlets. An example of a product barcode is shown below (Fig. 1). (f) State two ways the information provided by a barcode can be used by a retailer. Price Who made it and when Stock take