Which of the following statements is incorrect with reference to the Visual Display Unit (VDU) of a computer system?
1
The VDU produces an image by arranging tiny dots, which are known as pixels, in a rectangular pattern.
2
VDU is the primary output device of a computer.
3
VDU has differences between cathode-ray tube and flat-panel display.
4
The pixel size determines the clarity of the image displayed on the VDU.