| 摘要 |
A peripheral component interconnect (PCI) card for enabling communication between a component and a host computer, includes a microprocessor for receiving an input command from the computer and generating a digital signal to be communicated to the component. A digital-to-analog converter is provided, preferably on the PCI card, for converting the digital signal to an analog signal before communication to the component. The PCI card can be used to control a motorized zoom lens of a camera directly from a computer.
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