ICT- INFO 1- OUTPUT
- Created by: luiop100
- Created on: 23-05-16 11:09
View mindmap
- Output
- Information Types
- visual
- audible
- Visual Output
- Screens and monitors
- The user can see what's happening
- See a moving image
- Resolution determines image quality
- Complex graphics require a high resolution
- resolution is measured in pixels
- CRT monitor
- cathode ray tubes
- sharp and clear display at a low cost
- TFT monitor
- thin film transistor
- takes up little space
- Large displays
- When computer based images need to be shown to lots of people
- Digital projector
- portable and can be mounted
- Larger version than on the screen
- Interactive whiteboard
- Can be written on using a stylus
- Are both input and output devices
- Plasma screen
- Used as televisions
- illuminates tiny fluorescent lights to create an image
- Small displays
- Mobile phone screens
- need internet access and a screen capable of refreshing
- Need to be able to watch TV via the phone
- PDAS
- larger than a mobiles
- have touchscreens an a virtual keyboard
- Mobile phone screens
- Printers
- Laser printer
- Full page at a time
- Used in offices, for clear text and diagrams
- Uses toner
- Inkjet printer
- Cheaper than lasers
- tri-coloured ink
- smudges easily
- Multi-function printer
- Built in scanner
- Simple photocopier
- Can be a fax machine
- Usually uses inkjet rather than lasers
- Dot-matrix printer
- Used to print on multi-part stationary
- quality is less important than quantity
- low quality fades over time
- Used for reciepts
- Plotter
- Uses pens drawing along paper to create detailed images
- expensive but good for graphs
- Photo printing
- Portable
- Printing via SD card or bluetooth
- Quality of ink is important, prof. printing is cheaper
- Professional printer
- Cost effective
- Saves staff and produces excellent results
- Laser printer
- Screens and monitors
- Audible Output
- Speakers
- External speakers plugged into the computer, and sounds produced by the sound card
- devices have inbuilt speakers but have limited volumes
- Wireless headsets are more convinient
- Vary in size, quality, appearance and volume levels
- Headphones for public use but can cause hearing damage
- Speakers
- Special Purpose Output
- Increase font size
- Adjusting screen resolution
- Magnifying display
- Adjusting colour contrasts
- Read as it is typed
- Keywords to describe graphics
- availability of braille printers
- Choosing an output device
- monitor is almost always required
- TFT is the most practical
- Consider Portability
- Larger screens are more comfortable
- Satellite navigation requires a particular screen size
- More people suit a projector
- Web designers dictate what output device they are vie?ed on
- Laser printer have low running cost
- Coloured printing produces high quality photos but smudge
- laser prints high volumes
- Specialised printers
- Shared printers need to be networked wirelessly
- Information Types
- Professional printer
- Cost effective
- Saves staff and produces excellent results
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