The terminal device often used in checking charge cards that offers both a limited keyboard input and visual output is the:

An intelligent terminal is a computer terminal that has its own processing power and memory. It can be used to perform tasks such as data entry, word processing, and spreadsheet calculations.

A video display terminal (VDT) is a computer terminal that displays text and graphics on a screen. It is typically used to interact with a computer program.

An audio response unit (ARU) is a computer terminal that produces spoken output. It is typically used to provide instructions or feedback to users.

E is not the correct answer because it is not a type of terminal device.