-We all need a good monitor to see what it is our computer is doing. The monitor has come a long way since the Black and White televisions we used to hook our computer up to. Now we are entering into Active Matrix LCD monitors and more luxurious CRT(cathode ray tube) monitors. Now if you have been to the computer store lately you may want to know what all of it is about. What is the Dot pitch? What is Active and Passive Matrix? This is something we can answer fairly quickly. Take a look at the monitor sections below for more information on them.