Ports and Cables 101 : DisplayPort

By Edouard le Ricque , published on January 20, 2009 at 2:00 PM
Picture 8 of 14
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Simply put, DisplayPort is designed to put both DVI and HDMI out of business. It’s going to have a hard time overthrowing that last one, since DisplayPort only transports video signals, while HDMI can also handle audio. DisplayPort does offer some useful advantages like, for example, the ability to directly control the screen using the cable’s interface. This allows less circuits inside the cable to be used, which translates into space and cost savings. The DisplayPort cable is thinner than that of HDMI and DVI. It’s almost as thin as a USB cord. Practical and appealing details like this make connecting things easy. It’s also worth nothing that DisplayPort can handle very high resolutions, similar to what HDMI can do with its B version.

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Comments
Anonymous 01/20/2009 10:27 PM
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Nice article, But why did you miss out on CAT-5??

Anonymous 01/20/2009 10:31 PM
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thanks.

jtnstnt 01/20/2009 11:36 PM
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Quote :Thus, you’ll find QVGA in 320 x 240, XGA in 1024 x 768, and QXGA in 2048 x15536.


2048X15536 id like to get some of those

kittridge 01/21/2009 12:02 PM
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Gadget Guy Pic 13 mentions RJ45.
RJ45 is usually used in computer networking wiring according to TIA/EIA standard like T568A or B. That takes care of CAT5.
I mean RJ45 can also be used for other RS232 serial connection or telephone but author mentions Ethernet... so that's done deal

Eric Kolotyluk 01/21/2009 12:39 PM
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Ummm, DisplayPort transmits audio too.

Fadamor 01/21/2009 4:05 AM
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Gadget Guy :
Nice article, But why did you miss out on CAT-5??

Cat5 (more recently, Cat-5e and even Cat 6) is just the noise reduction rating of the cable used (lower noise transfer = higher possible transmission speeds). It has nothing to do with the connector attached to the end of it. Cat 5, 5e, and 6 cables use the RJ-45 "ethernet" connector/jack combination.

nekatreven 01/21/2009 5:11 PM
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Two things (not really corrections, just comments). These days the auto-sense on NICs is reducing the need to have straight-through and crossover cables. Just last week I connected two PCs directly with a straight-through for data transfer...just had to specify the IPs.

This may never change for console and rollover cables and other variations used for higher end equipment, but if you don't have the cable you need be sure to try the other type even if it isn't supposed to work! (but I wouldn't try it if you know PoE is involved!)

The other thing is that e-SATA will usually work at standard SATA voltages. It will be out of spec and I think there is a trade off on it, but it does work. Most of the e-SATA add-on brackets you can buy online (for desktops) only plug into a SATA port inside the case. There are those that have the molex connector to also increase the voltage though, and those are preferred if you can find them.

KyleSTL 01/21/2009 7:40 PM
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Telephone operators in the 18th century? The first patent was granted to Bell in 1875. That would be the 19th century. It would have been more informative to also talk about theoretical limitations of more of the cables (i.e. 480p for S-video and composite, 1080p for component, 3840x2400 for DVI dual link, etc)

bone squat 01/21/2009 7:43 PM
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Not very detailed. Tons of errors. The author didn't take his time writing this one. The author also doesn't seem to be that knowledgable. I was hoping to learn more than that...

whiz 01/21/2009 9:18 PM
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A close button would make the intruding microsoft popup ad on the left very cool.

Anonymous 01/21/2009 10:20 PM
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I have to be honest, this is not written very well. Many of the sentences make little sense and the information is not very accurate or poorly described.

blackbeastofaaaaagh 01/22/2009 1:32 AM
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Some points were missed:
1) Firewire 800 has a different connector that requires an adapter for Firewire 400 devices.
2) Many high end graphics/capture cards, using component video, use BNC instead of the usual RCA connectors. Some add a fourth cable for improved timing.
3) There are still tons of ultra high resolution CRT displays out there that use DB13W3 D-subminiature connectors. A simple adapter can be used to convert to VGA.
3) For the sake of completeness I add these: I have come across sound cards that use the following for digital audio output:
a) AES/EBU - have seen RCA, XLR, BNC connectors
b) S/PDIF - have seen TosLink and RCA
c) I2S (rare) - have seen RCA-pair
d) MIDI - varius DIN connector configurations.
e) AC3 or DTS - RCA or Toslink
Feel free to add if I missed some.

captaincharisma 01/22/2009 6:21 PM
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yea looks like the writer was just getting all his data from wikipedia LOL

relmasian 01/23/2009 1:43 AM
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Another good report from Tom's, although I would like a table of contents or a pull down box which lets you jump to the description of any given connector.

cobra5000 01/23/2009 7:24 AM
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Pay attention,though,and dont be confused...this article stinks on ice!

Anonymous 01/23/2009 8:56 AM
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Weak article, not of Tom's Hardware quality.

Another thing that bothers me lately on Tom's: IE (7) crashes when i move my mouse over the 'Shop for all' section.

ace2056 01/26/2009 6:35 PM
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Umm, doesn't the picture for eSATA look like a USB cable, or am I just tired and mistaken?

improviz 01/28/2009 8:43 PM
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I thought Firewire 400 was 400 mbs already, theoretically, and Firewire 800 was 800 mbs? Confusing, to say the least.

Anonymous 02/09/2009 4:25 AM
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what about SCSI?

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