The NeXTdimension was a high-performance color graphics and multimedia accelerator board released by NeXT, Inc. in 1990 for its NeXTcube workstations. Designed to extend the capabilities of the NeXTcube beyond its standard monochrome or grayscale display, the NeXTdimension provided full 24-bit color graphics, real-time video processing, and advanced audio capabilities, making it a pioneering product in desktop multimedia and scientific visualization.
History
NeXT, Inc., founded by Steve Jobs after his departure from Apple, initially focused on the education and scientific markets with its innovative but expensive workstations. The first NeXT Computer (the "Cube") released in 1988 featured a highly advanced object-oriented operating system (NeXTSTEP) and a monochrome Display PostScript-driven graphical user interface. While powerful for software development and certain scientific applications, the lack of color graphics limited its appeal in fields requiring visual richness.To address this, NeXT developed the NeXTdimension, which was introduced alongside the NeXTstation (a cheaper, pizza-box form factor machine) in September 1990. The NeXTdimension was a significant upgrade option for the NeXTcube, enabling it to compete with high-end color workstations from companies like Sun Microsystems and Silicon Graphics, particularly in areas like desktop publishing, scientific visualization, and early multimedia production.
Features and Specifications
The NeXTdimension board was a complex piece of hardware, integrating several advanced components:- Color Graphics: It offered true 24-bit color (16.7 million colors) at resolutions up to 1120x832 pixels, a substantial improvement over the 2-bit (monochrome) or 4-bit (grayscale) displays of the standard NeXTcube. This made it suitable for professional image editing, graphic design, and video production.
- Digital Signal Processor (DSP): A key component was the Analog Devices ADSP-2105 Digital Signal Processor. This DSP was crucial for real-time video effects (such as fades, dissolves, and chroma keying), audio processing, and other computationally intensive multimedia tasks.
- Video Input/Output: The board included ports for composite and S-Video input, enabling the capture and display of live video streams. It also provided video output capabilities, making it suitable for video production and presentations.
- Frame Buffer: It featured dedicated video memory to store the color image data, allowing for fast display updates.
- Integration with NeXTSTEP: The NeXTdimension was tightly integrated with the NeXTSTEP operating system and its Display PostScript imaging model, allowing applications to leverage its hardware capabilities seamlessly for rendering and multimedia tasks. NeXTSTEP provided specific APIs (Application Programming Interfaces) for accessing the board's video and audio functions.
Significance and Impact
The NeXTdimension was a groundbreaking product for its time, pushing the boundaries of what was possible on a desktop computer:- Pioneering Multimedia: It predated widespread desktop multimedia capabilities by several years, offering features like real-time video manipulation and high-resolution color graphics that were typically found only on much more expensive and specialized workstations.
- Advanced Desktop Publishing: With 24-bit color and Display PostScript, it became a powerful platform for professional desktop publishing and graphic design, allowing designers to see true color output on their screens.
- Scientific Visualization: Its high-resolution color and processing power made it valuable for scientific and medical imaging, where complex data needed to be visualized in detail.
- Technical Achievement: The integration of real-time video, a powerful DSP, and high-resolution color in a single add-on board was a testament to NeXT's engineering prowess.
However, the NeXTdimension also faced challenges:
- Cost: Like all NeXT hardware, it was expensive. The board itself added significantly to the already premium price of a NeXTcube, limiting its market to professional and institutional buyers.
- Niche Market: While innovative, the market for such advanced desktop multimedia capabilities was still nascent in the early 1990s.