C++ Program

Q.5. Explain about LCD Monitors. Ans. : LCD stands for Liquid Crystal Display. Each pixel of an LCD typically consists of a layer of molecules aligned between 2 transparent electrodes, & 2 polarizing filters, the axis of transmission of which are perpendicular to each other. The surface of the electrodes that are in contact with the liquid crystal material are treated so as to align the liquid crystal molecules in a particular direction. Q.6. Explain about Video Controller. Ans.: A video display controller or VDC is an IC which is the main component in a video signal generator, a device responsible for the production of a TV video signal in a compulsory or games system. Q.7. Explain the different types of Printer: Ans.: Thermal Wax Printer : It uses wax coated ribbon & heated pairs. As the magenta, yellow & black ribbon passes in front of the print head, heated pins melt the wax on to the paper where it hardens. Thermal wax printers produce vibrant colors but ...