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14 Cards in this Set
- Front
- Back
What are the 4 basic components of an Interface between a computer and a device?
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1. electrical
2. mechanical 3. functional 4. procedural |
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What are some of the more common interface standards?
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EIA-232F, USB, FireWire, SCSI,iSCSI, InfiniBand, Fibre Channel
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Name three popular data link layer standards for packaging data:
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asynchronous
synchrounous isochronous |
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What is the unique dialog between a mainframe and a dumb terminal called?
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Polling prompts terminal to see if it has data to submit to the mainframe.
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What is the process of providing all the proper interconnections between a computer and a peripheral?
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Interfacing
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In what layer does interfacing the computer occur in the OSI model?
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Physcial Layer because it deals w/ analog & digital signals & hardware.
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List 3 primary organizations involved in making standards:
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ITU, CCITT, EIA, IEEE, ISO, ANSI
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What does the mechanical component of an interface standard deal with?
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size and shape of a connector? how many pins? pin arrangement?
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What does the functional component of an interface standard describe?
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the function of each pin that is used in the interface.
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What does the procedural component of an interface standard describe?
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how the particular circuits are used to perform an operation
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What is the EIA-232F interface standard for?
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Connecting a computer or terminal to a voice-grade modem for use on analog public telecom systems.
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How many bps and over what medium is defined by V.32
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9600 bps over telephone lines
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How many bps over what medium is defined by V.90?
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56,000 bps digital transmission of telephone lines
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How is V.92 an improvement over V.90?
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Updated 56,000 bps digital system w/faster upstream + CALL WAITING
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