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