mbuilt-in video support for the following monitors: Macintosh 12" Monochrome Display Macintosh 12" RGB Display

AppleColor High-Resolution RGB Monitor (13") Macintosh Color Display (14")

Apple Macintosh Portrait Display (15") Macintosh 16" Color Display

VGA monitors (requires MAC-VGA adapter) Super VGA (56 Hz) (requires MAC-VGA adapter)

Macintosh Two-Page Display (Duo Dock II or upgraded Duo Dock only) Macintosh 21" Color Display (Duo Dock II or upgraded Duo Dock only) Apple 17" Multiple Scan Display (Duo Dock II or upgraded Duo Dock only) Apple 20" Multiple Scan Display (Duo Dock II or upgraded Duo Dock only)

m1 MB VRAM for 16-bit color on color monitors 16" or less, 8-bit grayscale on the Apple 15" portrait monitor and the Macintosh Two-Page Display, and 8-bit color on color monitors 17" or greater. (The Duo Dock requires a 512K VRAM SIMM expansion card for 16-bit color.)

man automatic insert/eject feature to ensure reliable docking

ma key-operated lock to prevent theft of the docked PowerBook Duo

ma 32K RAM cache function that automatically speeds up the performance of a docked PowerBook Duo by as much as 20 percent (The RAM cache function is available only with a PowerBook Duo 230 computer docked in either a Duo Dock II or an upgraded Duo Dock.)

ma slot door that protects the interior of your Duo Dock II when your PowerBook is not docked

Building a PowerBook Duo System

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Apple 280C manual Building a PowerBook Duo System
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280C, 280 specifications

The Apple 280 and 280C are notable models in Apple's lineup that showcase the company's commitment to innovation and design. Launched as successors to earlier models, these computers were designed to cater to both professional and casual users, with features tailored for productivity, creativity, and seamless user experience.

One of the standout characteristics of the Apple 280 is its sleek and elegant design, which combines aesthetics with functionality. The lightweight chassis makes it easy to transport, appealing to users who are on the go. The display technology utilized in the Apple 280 models set a precedent for visual clarity and vibrancy, allowing users to experience richer colors and sharper images. The 280C model further enhanced this experience with a higher resolution, leading to more precise visuals that are perfect for graphic design and multimedia applications.

Under the hood, the Apple 280 and 280C are powered by robust processors that provide ample performance for demanding tasks. Multitasking is made smooth with sufficient RAM, enabling users to run multiple applications without sacrificing speed or efficiency. This level of performance is particularly advantageous for professionals in fields such as video editing, software development, and data analysis.

In terms of connectivity, the Apple 280 series is equipped with a range of ports that ensure compatibility with various peripherals, whether for personal use or professional setups. The inclusion of USB and Thunderbolt ports allows users to connect high-speed devices seamlessly, enhancing the overall productivity of the system.

Another hallmark of the Apple 280 series is the integration of advanced technologies that enhance user interaction. Features such as high-fidelity sound systems and responsive trackpads provide immersive experiences, whether users are listening to music, engaging in video calls, or navigating through applications.

Security also played a significant role in the design of the Apple 280 and 280C. These models incorporate the latest encryption technologies and secure boot processes, ensuring that user data remains protected against unauthorized access.

Overall, the Apple 280 and 280C stand as a testament to Apple's dedication to innovation, merging cutting-edge technology with user-friendly features to create devices that cater to a wide range of users. With a blend of powerful performance, elegant design, and advanced capabilities, these models have left a lasting impact on the computing landscape and continue to be relevant choices for many today.
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