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| | Wikinfo | PDS |
 | | It was a solution (actually, a whole number of different solutions) introduced by Apple Computer, in several of their Macintosh models, to providing a limited measure of hardware expandibility, without going to the expense (in both desktop space and selling price) of providing full-fledged bus expansion slots. |
 | | This was Apple's first attempt at a "low-cost" Mac, and it was such a success that, when subsequent models replaced the CPU with a 68030, and later even a 68040, ways were found to keep the PDS slot compatible with the original LC, so that the same expansion cards would continue to work. |
 | | The current standard for adding video cards to PCs, known as Accelerated Graphics Port or AGP, may be considered to be somewhere in-between a PDS and a bus. |
| www.wikinfo.org /wiki.php?title=PDS (380 words) |
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