Make note of when you install new software or apply an update in case other programs start having problems. For example, after installing or updating Microsoft products you may experience problems when using Netscape or Corel programs. Make an Emergency Boot Disk. Understanding Digital Images Resolution of digital images is one of the least understood topics in electronic presentations and publishing but is one of the most important to understand. Understanding what resolution is and how it affects the quality and file size of your images will help make sure your images contain enough picture detail for your output and that your computer screen shows run quickly and smoothly and Web pages load quickly.
Resolution is defined as a bunch of dots that are assigned or mapped to a given space.
In digital images, these dots are referred to as pixels. On laser printers, these dots are called dots. For printing presses, these dots are called lines. Pixels are not the same thing as the dots or lines of print and should not be confused. Think of your digital images as being made up of tiny squares of information like a checkerboard.