PORT I/O ADDRESS
A window through which software programs communicate commands to an installed host adapter board. The commands are communicated 8 bits at a time.
PROGRAMMED INPUT/OUTPUT
A method of data transfer in which the host microprocessor transfers data to and from memory via the computer’s I/O ports. PIO enables very fast data transfer rates, especially in single- tasking operating systems like DOS. The Adaptec
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REMOVABILITY
A feature where the media in a removable media disk drive can be removed, then replaced with the same or different media without causing problems to the operating system. If removability was not supported, media in a removable media drive could not be removed without potential loss for data unless the computer was turned off.
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