WAEC - Data Processing (2019 - No. 30)
A novice is discouraged from opening the CRT monitor for maintenance because
it cannot be appropriately reassembled after opening
it may harbour pests carrying infectious diseases
it may contain high static
the tube is fragile
Giải thích
CRT stands for Cathode Ray Tube. CRT is a technology used in traditional computer monitors and televisions. CRTs are glass vessels that have the air pumped out of them. They have very thick glass in the screen area and thinner glass in the narrow neck area. This makes a CRT fairly fragile when it is not encased in a computer. The neck area is particularly easy to break or crack.