Device Driver_PPT

Device Driver_PPT - Device Driver Click to edit Master...

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Click to edit Master subtitle style 9/8/10 Frank Cirimele 2010 Device Driver Frank Cirimele
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9/8/10 Frank Cirimele 2010 What is a Device Driver? A computer program which allows higher-level computer programs to interact with a hardware device Resides in the calling platform (e.g., PC) Contains a clearly defined interface Accesses hardware device without needing to know the device’s structure and functioning details Frank Cirimele 2010
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9/8/10 Frank Cirimele 2010 Driver/Hardware Device Interface Frank Cirimele 2010 PC Driver Hardwa re Device
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9/8/10 Frank Cirimele 2010 Why a Device Driver? Acts as a translator between the hardware device and application program or OS that use it Every device, such as printer or flash memory device, requires its own hardware-specific specialized commands Accept high-level commands and break them into a series of low-level device-specific commands Can provide a level of security as they can run Frank Cirimele 2010
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Device Driver_PPT - Device Driver Click to edit Master...

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