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  2. Pixel density - Wikipedia

    en.wikipedia.org/wiki/Pixel_density

    The dot pitch of a computer display determines the absolute limit of possible pixel density. Typical circa-2000 cathode-ray tube or LCD computer displays range from 67 to 130 PPI, though desktop monitors have exceeded 200 PPI, and certain smartphone manufacturers' flagship mobile device models have been exceeding 500 PPI since 2014.

  3. List of system quality attributes - Wikipedia

    en.wikipedia.org/wiki/List_of_system_quality...

    Within systems engineering, quality attributes are realized non-functional requirements used to evaluate the performance of a system. These are sometimes named architecture characteristics, or "ilities" after the suffix many of the words share.

  4. Reliability, availability and serviceability - Wikipedia

    en.wikipedia.org/wiki/Reliability,_availability...

    Reliability, availability and serviceability (RAS), also known as reliability, availability, and maintainability (RAM), is a computer hardware engineering term involving reliability engineering, high availability, and serviceability design. The phrase was originally used by IBM as a term to describe the robustness of their mainframe computers.

  5. The ultimate guide to computer health: How to ensure ... - AOL

    www.aol.com/lifestyle/the-ultimate-guide-to...

    Researching your options and seeking referrals can guide you toward professionals with a strong reputation for quality service. Equally important is understanding your warranty and service options.

  6. Image resolution - Wikipedia

    en.wikipedia.org/wiki/Image_resolution

    The image would be a very low quality image (72ppi) if printed at about 28.5 inches wide, but a very good quality (300ppi) image if printed at about 7 inches wide. The number of photodiodes in a color digital camera image sensor is often a multiple of the number of pixels in the image it produces, because information from an array of color ...

  7. Mortgage protection insurance: What it is and when you might ...

    www.aol.com/finance/mortgage-protection...

    Peace of mind: An MPI policy can provide you and your family with a sense of security. Cons of MPI. More cash out of your pocket: The MPI premium adds more of a burden to your monthly budget.

  8. Image scanner - Wikipedia

    en.wikipedia.org/wiki/Image_scanner

    Alexander Murray and Richard Morse invented and patented the first analog color scanner at Eastman Kodak in 1937. Intended for color separation at printing presses, their machine was an analog drum scanner that imaged a color transparency mounted in the drum, with a light source placed underneath the film, and three photocells with red, green, and blue color filters reading each spot on the ...

  9. Extended Computer Protection - AOL Help

    help.aol.com/products/extended-computer-protection

    Protect your computer regardless of its age, with hardware repair or replacement coverage. Get Started. Extended Computer Protection - From AOL FAQs.