Monitors
- Cathode ray tube (CRTs)
- Liquid crystal displays (LCDs)
- Quality of display
- Resolution
- Dot pitch
Touch screens
- Input and output via display device
Printers
- Speed and resolution
- Pages per minute
- Dots per inch
- Number of ink dots to fill a square inch
- Higher DPI the greater the page clarity
- Impact
- Create image by striking paper and ribbon
- Dot-matrix
- Non-impact
- Create image by spraying or rolling ink on the page
Non-impact Printers
- Ink-jet technology printers
- Spray ink on the paper
- Small
- Quiet
- Color is readily and cheaply available
- Laser printers
- Laser heats drum which rolls ink (toner) on paper
- Can be faster than ink-jet
- Color more expensive than ink-jet
0 comments:
Post a Comment