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based on material from Mott,Leeming,Williams Selection and use of output methods, media and devices AQA INFO 1 Section 6.

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Presentation on theme: "based on material from Mott,Leeming,Williams Selection and use of output methods, media and devices AQA INFO 1 Section 6."— Presentation transcript:

1 based on material from Mott,Leeming,Williams Selection and use of output methods, media and devices AQA INFO 1 Section 6

2 based on material from Mott,Leeming,Williams How this fits into the course When devising your solutions, you need to consider how the user will get information from the computer. This topic will look at the various methods of output available to you.

3 based on material from Mott,Leeming,Williams VDUs [also known as monitors and screens] Display information to a user –Different types include: –Small screens on PDAs or mp3 players –Large screens on TVs [LCD\plasma] 1.But what are they made up of?

4 based on material from Mott,Leeming,Williams VDUs continued… Pixels make up the display Measured by resolution [more pixels = better resolution] Modern flat screens are light weight and more compact. Pixel defects can occur.

5 based on material from Mott,Leeming,Williams Printers Types of printer: Dot Matrix Inkjet Laser When choosing a printer, you need to consider what it will be used for.

6 based on material from Mott,Leeming,Williams Data Projectors Very common on business demonstrations Project from a PC or laptop onto a big screen Quality is improving so that some can be used in natural light. Often used in classrooms.

7 Plotters Use pens which move around to draw detailed and accurate pictures Prints large technical drawings Used by engineers and architects

8 based on material from Mott,Leeming,Williams Speakers Common device to output music Many programs make audible warnings to indicate errors Can you think of other scenarios where sound is used?

9 Special purpose outputs Large output devices for partially sighted Increasing size of the font Adjusting the screen resolution Using sound rather than visual output Braille printers are available

10 based on material from Mott,Leeming,Williams Headsets Headsets in business are often combined with a microphone Allows telephone calls to be made whilst allowing user to multitask

11 based on material from Mott,Leeming,Williams Case Study The checkout at the supermarket has a large number of output devices: As products are scanned, a screen displays details of the purchase A speaker makes a beeping sound to indicate item has been scanned Can you think of any other output devices they use?

12 Choosing an output device What kind of image needs to be viewed? Where is it going to be viewed? Who is going to view the images? How many documents? What kind of media?

13 Summary Output devices Ways of improving accessibility Things to think about when choosing an output device Difference between output and output devices


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