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Now that digital photography, home-video editing, gaming, and desktop publishing are becoming commonplace, adding a scanner or a larger monitor to your computer setup lets you take full advantage of those applications.
Here are the key points to keep in mind when buying a scanner or monitor, based on the results of our recent tests.
SCANNERS
IMPORTANT NUMBERS
Price and resolution. Scanners fall into two categories. Models priced at about $100 offer a resolution--the level of detail they can actually scan--of 600 dots per inch (dpi). Models priced at about $200 offer 1,200-dpi resolution. Most people don't need the higher resolution. Scanning photos generally requires 300 dpi. Only if you regularly work with high-quality graphics might you want a 1,200-dpi scanner.
Color depth. Most scanners offer what's known as 36-bit color depth, a measure of the number of colors the scanner is able to recognize. A 36-bit color depth provides more colors than the human eye can distinguish. So there's no point to paying more for 42-bit color depth. Besides, a scanner's software usually reduces the color output to a still-ample 24-bit depth.
KEY FEATURES