Final answer:
Thermal printers are commonly used as a PoS terminal component. They use heat to produce images on specially coated paper and are often used in retail environments to print receipts.
Step-by-step explanation:
Thermal printers are a printer type commonly used as a PoS (Point of Sale) terminal component. These printers use heat to produce images on specially coated paper. They work by heating tiny dots on the paper, causing them to change color and form the desired image or text. Thermal printers are often used in retail environments for printing receipts.