printers and monitors

1. Printers & Monitors
By
Shumaila Ijaz
Zunaira Akram

2. MONITORS
• Most common output device
• The output by monitor is softcopy known as display
or screen

3. USES OF MONITORS:
• Display text and graphics
• Watching videos
• Performing different task

4. TYPES OF MONITORS
• Cathode Ray Tube(CRT)
• Flat Panel Monitors

5. CRT
• Create an image using a beam of electrons
• Looks like a television
• Red, green blue(RGB) colors are use in CRT
• Use more power
• Cheaper

6. Flat Panel
• Take less space and lightweight
• Use less power
• expensive

7. PRINTERS
• It is an output device
• Use for print characters graphics
• Its output is known as hard copy

8. Types of printer
• Impact printer
Dot matrix printers
Line printers
Daisy wheel printers
• Non impact printers
Laser printers
Inkjet printers
Thermal printers

9. Dot Matrix Printers
• Produce image by striking an ink ribbon
• Higher quality
• Speed measured by number of characters
• Very cheep

10. Laser Printers
• An impact printer
• Similar to photocopy machine
• Use laser beam
• High quality resolution
• Does not make noise
• Use in business field
• Black and white printing
• Page printer

11. Inkjet Printers
• Create an image by spraying liquid ink
• Black and white printing
• Slower than laser printer