ELI5: Explain Like I'm 5
Examples: volatility, when was the electric car invented, load balancing, imaginary number, mandolin

ID card printer

An ID card printer is a machine that prints out ID cards for people to use. It can print out cards that have a picture of the person, their name and other information like their address or phone number. The printer usually has a computer attached to it that allows you to type in the information and then the printer will print out the ID card with all the information on it.