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  2. PowerBook 180 - Wikipedia

    en.wikipedia.org/wiki/PowerBook_180

    In June 1993, Apple released an identical color version of this model, the PowerBook 180c. It had an 8.4 in (210 mm) diagonal active matrix color LCD capable of displaying 256 colors and was the first PowerBook to natively display 640×480 (all previous PowerBooks had 640×400 resolution).

  3. PowerBook 100 series - Wikipedia

    en.wikipedia.org/wiki/PowerBook_100_series

    The PowerBook 180 had a superb-for-the-time active-matrix grayscale display, making it popular. In 1993, the PowerBook 165c was the first PowerBook with a color screen, later followed by the 180c. In 1994, the last true member of the 100-series form factor introduced was the PowerBook 150, targeted at value-minded consumers and students.

  4. PowerBook - Wikipedia

    en.wikipedia.org/wiki/PowerBook

    The 160 and 180 have video output, allowing them to drive an external monitor. In addition, the PowerBook 180 had a superb-for-the-time active-matrix grayscale display, making it popular with the Mac press. In 1993, the PowerBook 165c was the first PowerBook with a color screen, later followed by the 180c.

  5. Macintosh startup - Wikipedia

    en.wikipedia.org/wiki/Macintosh_startup

    An Apple PowerBook 180c displaying the Happy Mac during the startup process. In all instances, the startup chimes will be heard upon completion of the boot process (if successful), and a Happy Mac (or the Apple logo on newer versions) will be displayed on the screen to visually indicate that no hardware issues were found during the boot process.

  6. Quiet PC - Wikipedia

    en.wikipedia.org/wiki/Quiet_PC

    A fanless CPU cooler based on heat pipe technology. A quiet, silent or fanless PC is a personal computer that makes very little or no noise.Common uses for quiet PCs include video editing, sound mixing and home theater PCs, but noise reduction techniques can also be used to greatly reduce the noise from servers.

  7. Computer fan - Wikipedia

    en.wikipedia.org/wiki/Computer_fan

    The type of bearing used in a fan can affect its performance and noise. Most computer fans use one of the following bearing types: Sleeve bearings use two surfaces lubricated with oil or grease as a friction contact. They often use porous sintered sleeves to be self-lubricating, requiring only infrequent maintenance or replacement.

  8. PowerBook 160 - Wikipedia

    en.wikipedia.org/wiki/PowerBook_160

    The PowerBook 160 is a portable computer that was released by Apple Computer along with the PowerBook 180 on October 19, 1992 and the PowerBook 165 variants were released the following year. [1] At the time, it constituted the mid-range model replacing the previous PowerBook 140 in processing power. The PowerBook 160 was sold until August 16 ...

  9. Computer fan control - Wikipedia

    en.wikipedia.org/wiki/Computer_fan_control

    Full-tower computer cases may contain multiple cooling fans. At the top of the case is a fan controller. Fan control is the management of the rotational speed of an electric fan. In computers, various types of computer fans are used to provide adequate cooling, and different fan control mechanisms balance their cooling capacities and noise they ...