Printers
1. function
2. connections
3. network share

Non-impact printer
1.definition
2. types

Impact printer
1. definition
2. types

Inkjet printer
1. how
2. cartridges
3. pros and cons

Laser printer
1. how
2. sizes
3. pros and cons

Thermal printer
1. how
2. common uses
3. pros

Dot matrix printer
1. how
2. pros and cons