Answer:
an information key that explains how information in a chart is represented by colors or patterns
Explanation:
This is the information that is used to explain the data in the graph.
Most computers have three types of ports: serial, parallel, and USB. A serial port is a type of interface that connects a device to the system unit by transmitting data only one bit at a time. Serial ports usually connect devices that do not require fast data transmission rates, such as a mouse, keyboard, or modem.
It the use of technological devices such mobile phones and computer devices to help retain and locate information.