Output Devices

There are two types of output devices. One is called Soft copy outputs and the second is Hard copy outputs.
Soft Copy Outputs
System reports and the Preview reports are Called Softcopy Output reports. The main output device of this category is Monitors and Screens. These monitors and screens are different from each other by the colors, size, resolution and graphic cards or display adapters. The 256 colors combinations are used in these monitors. The most commonly used size for monitors is 15” or 14” and unto the large sizes of monitors.
Cathode-Ray-Tubes are the most common monitor type. In this technique, bits converted to the electrons by the electron gun. When this electrons stick on the phosphor coated surface, it creates images on the monitor screen. This technique is also used in TV sets.
FPD (Flat Panel Displayer)
These types of monitor are lightweight but expensive as compare to the CRT (Cathode Ray Tube) monitors. But this type is suitable for the portable computers. The most common of this type are LCD (Liquid Crystal Displayers). In this technique, there are two glass plates and between these plates, there is a liquid crystal stuffed. This liquid crystal stuffed layer between the two glass plates creates the image. So, these are the most common soft copy output devices now we talk about he hard copy outputs. Printers there are also two types of printers. First type is Impact Printers and the second is Non-Impact printers.
Impact Printers
Impact printers works just like the typewriters. There is ribbon between the hammers like characters and when these characters struck like hammer on the inked ribbon, it prints the character on the plane paper. Or in other words, there is an ink ribbon between a plane paper and characters. And when character struck on the ribbon, it leaves the image on the paper. These types of the printers are slow in printing but this printing is not as expensive as compare to the other printers type (non-impact printers). So, impact printers are used where the heave printing is required. Though, print slowly, but the cost per page is too much low as compare to other printers. The quality of this printing is also not too good; I mean it gives poor printing quality. But yet have its own benefits.
Non – Impact Printers
Non – Impact Printers work like the photocopier machine. It gives the speedy printing and the qualities of these printers are too much good as compare to the impact printing quality. But this type of printing is costly. These printers are not recommended where the heavy printing is required.
Speakers
Speakers are also one of the types of output devices. It used to out put the audio formatted files. There are lot speakers types are available in the market. So, these are the most commonly used output devices.