managed server

http://resources.infosecinstitute.com/quantum-cryptography/

As a student I have learn't what to do and what not to do and which mistakes should be avoided

Aspect ratio  is the ratio of the width of an image to the height of the image. This ratio is expressed as x:y, and differs in case of different images used in photography, television, computer applications and so on. Changing this ratio may distort the images. The  resolution  of an image is the total number of pixels displayed on your computer or television screen. Generally, the higher the resolution, the higher is the quality of the image. Comparison chart Aspect Ratio versus Resolution comparison chart Aspect Ratio Resolution Definition Aspect ratio is the ratio of the width of an image to the height of the image (x:y). The resolution of an image is the total number of pixels displayed on your computer or television screen. About Original aspect ratio (OAR) and Modified aspect ratio (MAR) are the dimensions in which the film is originally produced, or altered to fit a particular screen, respectively. The resolution of digital images can be described as pixel resolut