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Which hardware component controls serial port communications?
A. ROM BIOS
B. CPU
C. DMA823
D. UART 16550
E. None of the above

Submitted by: Muhammad

Option D
UART 16550
Submitted by: Muhammad

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☺	Which provides the fastest access to large video files? A. Optical drives B. IDE hard drives C. SCSI hard drives D. EIDE hard drives E. None of the above

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A customer has just installed a new cd-rw. the system was working fine before the installation, but now the cdrom does not work, what should you suggest that the customer do?
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