Scanners are used to digitize photographs or images from print media such as magazines, newspapers etc. If the purpose is to put these images on the web, they should be, in most cases, converted to JPG format. Let me tell you two important points about scanning and saving the images as JPEGs.
I use a UMAX scanner which comes with its own software (VistaScan) that I operate through Adobe PhotoShop. The image editing tool allows me to manipulate the images (their resolution, size, brightness and contrast and other features) easily.
The origins of phrase "Hello world!" as a test phrase can be traced to an example program in seminal book, "The C Programming Language", written by Brian Kernighan and Dennis Ritchie. [more...]