Following is a partial reproduction taken from Adaptec's web site at: <http://www.adaptec.com/ioposter/>. Adaptec has A LOT more information available online. Give them a hit, they probably have the answer you seek about how to connect that new power toy to your Mac, on top of making excellent products!
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- SCSI = Small Computer System Interface.
- A standard for high-speed connections to peripherals.
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- 1394:
- The Institute of Electrical and Electronics Engineers (IEEE) designation for an interface developed for easy connection to consumer devices, such as video and computer peripherals.
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- FIREWIRE:
- The Apple trademark for the IEEE 1394 interface.
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- ILINK:
- The Sony trademark for the IEEE 1394 interface.
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- EIDE = Enhanced Integrated Drive Electronics.
- A cheap interface for hard drives and CD-Roms.
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- USB = Universal Serial Bus.
- An easily expandable interface for keyboards and modems.
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- FIBRE CHANNEL:
- A high-end storage interface for fast data transfer in storage networks or data centers.
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- HOST ADAPTER CARD:
- A card placed inside your computer to add a connector port.
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- BUS:
- The total wires in a communication path.
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- TERMINATOR:
- Circuitry added to the end of the bus to absorb reflected signals and improve data integrity.
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- I/O = Input/output.
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- MB/S = Megabytes per second:
- 100 Megabytes per second equals 800 Megabits per second (Mb/s).
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- ID:
- A unique number assigned to each device to tell one from another.
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- SINGLE-ENDED:
- A type of signal transmission, where the difference between the signal and ground is significant.
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- DIFFERENTIAL:
- A type of signal transmission where the difference between two signals is significant. Differential was developed as an option for single-ended SCSI to increase bus length.
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- LOW VOLTAGE DIFFERENTIAL:
- A kind of differential that uses a lower voltage to conserve power.
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- ISOCHRONOUS DATA TRANSFER:
- Data transfer that is matched to a clock so that data is sent at a fixed rate. (Necessary for video and audio connections to devices such as TVs)
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- NARROW:
- In SCSI, a device that uses an 8-bit data path.
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- WIDE:
- A SCSI device that uses a 16-bit data path to send twice as much data as narrow. Requires a 68-pin cable.
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- HOT PLUG:
- The ability to plug in a cable or connector while the computer and peripheral are powered-on without danger of system errors.
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- FAST:
- The Fast description indicates that it is a SCSI-2 specification. SCSI-2 allows for 5 MB/s transfer rates; Fast SCSI option doubles it to 10 MB/s.
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- ULTRA:
- The "Ultra" prefix indicates that it is a SCSI-3 specification. "Ultra" alone refers to the first version of SCSI-3, and Ultra2 and Ultra3 refer to successive refinements to the specification.
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