The drawing below shows one of many possible PowerBook Duo systems.

Duo Dock

PowerBook Duo, inserted into the dock

The Duo Dock and Duo Dock II come with many built-in features; several optional features are also available. These features include:

man internal 1.4 MB floppy disk drive

man optional internal SCSI hard disk drive (any available capacity that meets Apple’s specifications; up to 1 inch high)

mstandard ports including SCSI (with an HDI-30 connector), monitor, printer, modem, Apple Desktop Bus (ADB), sound input, and sound output. On the Duo Dock II or upgraded Duo Dock, an EtherTalk port is also provided.

ma separate mouse and keyboard

mslots for two NuBus cards for Ethernet, Token Ring, additional video, or other capabilities. (Note that if you use two NuBus cards in your Duo Dock or Duo Dock II and you dock a PowerBook Duo 280 or 280c, the bottom of your PowerBook Duo may feel warm when you eject it from the dock. This is normal and will not harm your PowerBook Duo.)

ma math coprocessor (FPU) on the Duo Dock II or upgraded Duo Dock (a socket for an optional math coprocessor is provided on the Duo Dock) if you are using the dock with a PowerBook Duo 230

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Apple 280C manual Duo Dock PowerBook Duo, inserted into the dock
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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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