Adaptec PC/104, PCM-3420 manual L M N

Models: PCM-3420 PC/104

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L

M

N

Narrow SCSI device (as opposed to Wide SCSI device)

This is the term attributed to today’s 8 bit standard SCSI devices. This term is necessary to distinguish today’s 8-bit SCSI devices to 16-bit Wide SCSI devices.

O

P

PIO (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.

Appendix C Glossary of Terms 49

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Adaptec PC/104, PCM-3420 manual L M N