A
- AL = Arbitrated Loop (Private/Public):
- Arbitrated Loop (AL) is the simplest and most common implementation of Fibre Channel (FC).
An AL consists of one physical serial loop of 2 to 127 ports (devices) all able to communicate
with each other on the loop. FC runs at 1.0625 Gigabaud (100MB/sec). All the devices on an
arbitrated loop share the 100MB/sec.
In Fibre Channel, there is not one controller on the loop looking after the communication on
the channel. Each port takes part in every activity, be that transmitting or receiving information
from another port, or just passing information that does not apply to it along to the next port
on the loop.
The term "arbitrated" refers to the way in which FC allows the devices to gain access
to the serial loop to communicate. Each device has to arbitrate for the right to use the channel.
This arbitration is governed by "fairness algorithms" to ensure that no one device can
"hog" the channel.
Once the right has been given to the initiating port, it must establish communication with the
destination port (device).
When the channel is free, the arbitration process begins again.
A public AL is the same as a private loop (above) except that one of the ports on the loop is
a switch port. Through a switch port the members of the loop can communicate with devices
plugged into another port on the switch.
- A Roll:
- The first generation recorded camera original that contains all the video and audio recorded.
- ASIC:
- Acronym for Applications Specific Integrated Circuit.
- Assemble edit:
- To put the shots together, one right after another, in sequential order from the beginning
to the end of the video. Every time an assemble edit is performed, it replaces all previously
recorded material with new video, audio and control track.
- AutoCAD:
- Computer Aided Design.
(go to the top of this section and look up another glossary term?)
- B
- B Roll:
- The secondary shots and/or audio to be used as cover or cutaways for the video.
It may also be shots duplicated from the
A roll
material to create source material for a dissolve or other effect.
- Back time:
- The method of calculating the edit-in point (where the edit will begin) by subtracting
the length of the shot from the edit-out (where the edit will end) point. This is done
when it is critical that the video material being edited begin and end at a specific point,
such as in an insert edit.
(go to the top of this section and look up another glossary term?)
- C
- Cache:
- (pronounced "cash") - A section of RAM used to
store the most frequently accessed data, designed to speed up subsequent access to
the same data.
- Corian:
- Awaiting definition.
- CPU:
- Central Processing Unit - A chip or circuit that
interprets and executes programs by processing a list of machine instructions
which perform binary operations on data stored in memory.
(go to the top of this section and look up another glossary term?)
- D
- Dealer:
- Awaiting definition.
- DIMM:
- Dual In-line Memory Module - a particular configuration for
RAM consisting of an array of memory chips,
IC's, on a small pc board with two rows of I/O contacts. DIMMs have
opposing pins on both sides of the circuit board that remain electrically isolated
to form 2 separate contacts. This module has 168 pins and can transfer 64 bits at a time.
- DRAM:
- Dynamic Random Access Memory - the most common form
of computer memory. DRAM must be refreshed (reenergizing of the capacitors) every 15ms or so.
- DTV:
- Digital television. Awaiting further definition (no pun intended).
- DVD:
- Awaiting definition.
(go to the top of this section and look up another glossary term?)
- E
- EDO, EDO RAM:
- Extended Data Output - provides faster access to memory,
up to 25%, than standard DRAM and reduces the need for second level cache.
Generally not compatible with 386's, 486's, and older Pentium machines.
- End-user:
- Awaiting definition.
- Ergonomics:
- The science that studies your physical relationship with your working environment,
resulting in the design of safer, healthier and more productive workstations that meet both
your physical and psychological needs. The word "ergonomics" comes from the Greek words
ergos (work) and nomos (laws).
Thus the science of ergonomics is the study of how the laws of nature affect you and your
work environment. When it comes to seating, this science involves fitting your chair to
your body and your workstation to make you as productive as possible.
See seating by
BodyBilt for the best in this type of design.
(go to the top of this section and look up another glossary term?)
- F
- Fibre Channel:
- Fibre Channel is a group of standards that define a communications
interface for the serial transfer of large amounts of data between a variety
of hardware systems at rates up to 100 MB (that's mega BYTES not bits)
per second, or 200 MB per second in full duplex.
For much more detail on this, see the detailed MountainGate white paper
Introduction to Fibre Channel and Its Applications for Digital Video.
- Fire Wire:
- Designed to replace SCSI,
FireWire (also referred to as IEEE 1394) is a communications interface
standard which allows for serial transfer rates of up
to 400 megabits per second with plans to extend it upward to 1 Gbps.
Primarily sponsored and developed by Apple, this standard
promises isochronous service while providing the bandwidth needed for
audio, imaging, video, and other streaming data. FireWire offers a
standard, simple connection to all types of consumer electronics,
including digital audio devices, digital VCRs and digital video cameras.
Up to 63 devices can be plugged into a single configuration without
termination, similar to plugging a phone into a phone jack.
- Fountainhead:
- Awaiting definition.
- FPM:
- Fast Page Mode - a standard form of computer memory.
(go to the top of this section and look up another glossary term?)
- G
- Gibraltar:
- Awaiting definition.
(go to the top of this section and look up another glossary term?)
- H
- I
- IC:
- Integrated Circuit - In the case of computer memory,
RAM IC's; the small black chips found on
SIMMs , DIMMs ,
and other memory modules.
- ID-Ten-T:
- An acronym for a new non-resilient user standard which stands for
Information Dialog base-10
Translation. Often abbreviated as "ID10T".
(go to the top of this section and look up another glossary term?)
- J
- K
- L
- M
- N
- O
- OEM:
- An acronym for Original Equipment Manufacturer.
- P
- Post Production:
- All activity that follows the completion of taping up to the finished program, including
but not limited to the selection of shots and deciding on transitions between those shots;
the selection of music, audio, and sound effects; the selection of graphics and other visual
elements; and, finally, the execution of these decisions in an edit session.
(go to the top of this section and look up another glossary term?)
- Q
- R
- RAM:
- Random Access Memory - Computer storage that resides on
silicon chips; Chips that can store and retrieve data quickly; Code and data that
changes while the computer is running.
- Rep Firm:
- Awaiting definition.
(go to the top of this section and look up another glossary term?)
- S
- SCSI:
- Awaiting definition.
- SIMM:
- Single In-line Memory Module - a particular
configuration for RAM . An array of memory chips
on a small pc board with a single row of I/O contacts.
(go to the top of this section and look up another glossary term?)
- T
- U
- V
- W
- X
- Y
- Z
(go to the top of this section and look up another glossary term?)
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