Which of the listed is not a type of computer application?

To answer this question, it helps to separate software, which is a set of instructions or programs that run on a computer, from hardware, which is a physical device you can touch.

Microsoft Word is word-processing software used to create documents, Firefox is a web browser application used to access the internet, and VLC media player is software used to play audio and video files. All three are genuine computer applications: programs that run on the operating system to perform a user task.

A joystick, however, is a physical input device used mainly for gaming, similar to a mouse or keyboard. It is a piece of hardware, not a program, so it does not belong in a list of computer applications.

Examination reminder: when a list mixes software names with a hardware device, remember that applications are programs you run, while devices like joysticks, mice, and keyboards are physical equipment you connect to the computer.