TERMINOLOGY
CAT-5
Category 5 cable, commonly known as Cat 5, is an unshielded twisted pair type
cable designed for high signal integrity. The actual standard defines specific electrical
properties of the wire, but it is most commonly known as being rated for its Ethernet
capability of 100 Mbit/s. Its specific standard designation is EIA/TIA-568. Cat 5 cable
typically has three twists per inch of each twisted pair of 24 gauge copper wires within
the cable.
CAT-5e
Similar to Cat 5 cable, but is enhanced to support speeds of up to 1000 Megabits per
second.
DDC
Shortformfor Display Data Channel. ItisaVESAstandardforcommunication between
a monitor and a video adapter. Using DDC, a monitor can inform the video card about
its properties, such as maximum resolution and color depth. The video card can
then use this information to ensure that the user is presented with valid options for
configuring the display.
DDWG
Digital Display Working Group DDWG are the creators of the DVI specification.
DVI
Digital Visual Interface. A digital video standard established by DDWG, which was
designed to carry uncompressed digital video signals to a display.
HDMI
The High-Definition Multi-media Interface (HDMI) is an industry-supported,
uncompressed, all-digital audio/video interface. HDMI provides an interface between
any compatible digital audio/video source, such as a set-top box, DVD player, and
A/V receiver and a compatible digital audio and/or video monitor, such as a digital
television (DTV).
HDCP
High-BandwidthDigital Content Protection. Createdby Intel, HDCPis used withHDTV
signals over HDMI and HDMI connections and on D-Theater D-VHS recordings to
prevent unauthorized duplication of copy written material.
HDTV
High-Definition Television. The high-resolution subset of our DTV system. The ATSC
defines HDTV as a 16:9 image with twice the horizontal and vertical resolution of our
existingsystem,accompanied by 5.1 channelsofDolby Digital audio.TheCEAdefines
HDTV as an image with 720 progressive or 1080 interlaced active (top to bottom)
scan lines. 1280:720p and 1920:1080i are typically accepted as high-definition scan
rates.
VESA
Video Electronic Standards Association, a consortium of manufacturers formed to
establishandmaintainindustrywidestandardsforvideocardsandmonitors.VESAwas
instrumental in the introduction of the Super VGA and Extended VGA video graphics
standards with a refresh rate of 70 Hz, minimizing flicker and helping to reduce user
eyestrain and fatigue. 11