To answer this question, we need to understand what a VDU (Video Display Unit) is and its function.
A VDU, also known as a monitor or screen, is a device that displays visual output from a computer or any other electronic device. It is primarily used as an output device to display information such as text, images, videos, and graphical user interfaces.
Let's go through each option to understand why it is correct or incorrect:
Option A) It is an output device - This option is correct. As mentioned earlier, a VDU is primarily used as an output device to display visual information generated by the computer.
Option B) It is an input device - This option is incorrect. An input device is used to input data or commands into a computer, such as a keyboard or a mouse. A VDU does not take any input; it only displays output.
Option C) It is a peripheral device - This option is correct. A peripheral device is any external device connected to a computer that extends its functionality. A VDU is considered a peripheral device because it is connected to the computer and provides an additional visual output.
Option D) It is a hardware item - This option is partially correct. A VDU is indeed a hardware item, as it is a physical device. However, this option does not fully describe the functionality or purpose of a VDU.
The correct answer is C) It is a peripheral device. This option correctly describes the VDU as a peripheral device that provides visual output to the user.