Tag Archive for HDCP

Why Do We Call Them Dongles

Why Do We Call Them DonglesIf you remember the days before digital rights management (DRM) you also remember having to connect a piece of hardware to your PC to make a piece of software work. The hardware required to activate your software was commonly referred to as a ‘Smart Key.’ Smart keys or dongles are plugged into a computer port and controlled your access to one or more software applications – early copyright protection.

Avid dongleThe first time I ran into a “smart key” was setting up an Avid video editing system on a fancy new PowerMac G3 back in the day. More recently I saw techs struggle to set up a way to use a “not so smart key” in a high availability VM environment. “Dongle” now refers to “any small module that plugs in and sticks out of a socket.” But why are these things commonly call dongles and where did the weird word actually come from? That’s a matter of debate — The Atlantic dangles several promising origin stories.

Dongle origin stories

A Poetic Origin – The oldest theory is that dongle came, from the literary world. The article explains that the word “dongle” has been frequently used in poetry, as an onomatopoeic term for the ringing of bells (as in “ding-dong”). As an example, this 1915 poem, “The Bells of Berlin”:

ding-dong"

The Bells of Berlin, how they hearten the Hun
(Oh dingle dong dangle ling dongle ding dee);
No matter what devil’s own work has been done
They chime a loud chant of approval, each one,
Till the people feel sure of their place in the sun
(Oh dangle ding dongle dong dingle ding dee).

Ummmm – Does that ring a bell with anybody?

A College Entrance Exam – If the poetry idea does not ring true for you – the author offers another theory. They found a claim by Ian Kemmish in a chat about the etymology of “dongle” has its roots in a logic question in a Cambridge college entrance exam.

The first time I saw the word was … in 1976 … It was a “logic” question. The question college entrance examdescribed a mythical computer with various controls … described various combinations of control actions and their outcomes (‘the babbocks break’, ‘the dongles droop’ etc) … ‘dongle’ was coined by someone who had taken that paper … remembered the word used to describe something on a computer that drooped….

Well – Does that origin story make the grade?

Another UK theory  – The University of Pennsylvania’s language log says the word ‘dongle’ emerged around 1980. They base the claim on the U.K. magazine MicroComputer Printout’s report that dongle, “has been appearing in many articles with reference to security systems for computer software.”

Rainbow serial dongleA Madison Avenue Invention – If U.K. origins don’t work – the article tries to sell you another one. The word “dongle” appears in a 1992 ad for the information-security company Rainbow Technologies (SafeNet >> Thales), in Byte Magazine. The ad claimed that “dongle” was a derivation of its inventor, Mr. “Don Gall.” This was untrue, Ben Zimmer on the NYT notes, that the story, “was so egregiously false that the company happily owned up to it as a marketing ploy when pressed …

A Corruption of the Word “Dangle”- According to P.B. Schneck in the 1999 IEEE paper Persistent access control to prevent piracy of digital information… the word may be a corruption of ‘dangle,’  … given the shape of most dongles … though it doesn’t directly explain the shift in vowels form “a” to “o.”

It is Magic – The Atlantic seems to give up and attributed the origin of “dongle” to an unknown neologizer. They conclude that “dongle” just sprung up from the minds of some unknown figure in a process of “de novo creation.” One expert blames the phenomena of phonesthesia, or sound symbolism. He believes dongle, ” … appeared out of the blue in recent decades — among them bling, bonkers, bungee, dweeb, glitzy, gunk, and wonk.”

rb-

Despite not knowing why we call them dongles – dongles are still with us.

Want to connect your laptop to a television? You’ll need a dongle.

Want to track your dog’s activity? Buy a dongle.

Trying Chromecast? You’ll also be dongling.

They are still causing much frustration and controversy.

The ultimate solution to the HA VM dongle problems was to and replace the application – In the interim, they used a Digi usb anywhere device to get more than one VM to connect to the Digi device.

Stay safe out there!

Related article

 

Ralph Bach has been in IT long enough to know better and has blogged from his Bach Seat about IT, careers, and anything else that catches his attention since 2005. You can follow him on LinkedInFacebook, and Twitter. Email the Bach Seat here.

DisplayPort v1.2 Arrives

VESAThe Video Electronics Standards Association (VESA) has approved DisplayPort version 1.2. DisplayPort (DP) is a royalty-free technology which key IT players like Intel, Microsoft, HP, Nvidia, AMD, Dell, Apple, Lenovo, and other key IT players. DisplayPort aims to replace the DVI and HDMI interfaces by offering interoperability over a DP connector. The new standard allows any digital display to be driven from a multi-mode DisplayPort source. The new standard adds a higher speed auxiliary channel which will enable bi-directional data transfer over a single cable. This will support USB data at up to 720 Mbps, enabling embedded webcams, speakers, and USB hubs over a single cable.

DisplayPort v1.2 also supports Ethernet data. DisplayPort DisplayPort v1.2 doubles the data rate of the existing v1.1a standard to 21.6 Gbps. To achieve the 21.6 Gbps rate, the data rate across the four lanes has doubled from 2.7Gbps to 5.4Gbps. With the increased data rate a single DP connector can support multiple monitors. The new standard will enable a resolution of up to 3840×2400 at 60Hz on a single monitor, two WQXGA (2560 x 1600) monitors, or four WUXGA (1920 x 1200) monitors. The new spec will support 3D Full HD Stereo content at 120Hz and High Color Range Quad Full HD (3840 x 2160 p). DisplayPort v1.2 also adds new audio enhancements including multiple channels, video synchronization assistance, and support for high-definition audio formats including the DRA standard from China.

DisplayPort ConnectorThe new version is also backward compatible with the older standard, so all the ports, cables, and devices will be interchangeable. However, they will revert to the lowest common denominator, “It is completely backward-compatible with DP v1.1a and requires no new cables or other equipment, making it the standard of choice across the industry,” said Bill Lempesis, executive director of VESA. DP v1.2 provides copyright protection.

DisplayPort v1.1 added support for High Bandwidth Digital Content Protection (HDCP). Digital Content Protection, an Intel subsidiary developed and licenses HDCP. The technology encrypts the audio and video components of HD content to prevent unauthorized copying and viewing of the  HD video content as it travels across DisplayPort, DVI, HDMI, GVIF, and UDI connections. In the past, adding HDCP has forced users to buy and/or upgrade their equipment with HDCP-compliant products.

DisplayPort also includes an optional DPCP (DisplayPort Content Protection) copy-protection from Philips, which uses 128-bit AES encryption. It also features full authentication and session key establishment (each encryption session is independent). There is an independent revocation system, which is licensed separately. DPCP also verifies the proximity of the receiver and transmitter to make sure users are not bypassing content protection systems to send data out to distant, unauthorized users.

DisplayPort’s main competition is High-Definition Multimedia Interface (HDMI) which recently updated its specifications. Ars Technica points out that the new HDMI standard is more confusing than ever, ” … the one cable to rule all AV equipment will now have 45 potential variations for customers to choose from—let alone the numerous (and often dubious) “quality” levels offered at hard-to-swallow prices.” Ars Technica concludes that the new HDMI standard seems, ” to add complexity to a system that was originally designed to greatly reduce the complexity of connecting AV equipment in the first place. The new micro-HDMI connector also seems redundant.”

Brian O’Rourke, the principal analyst for In-Stat, told EDN in 2008 that manufacturers’ shipments [of DisplayPort] will grow to more than 600 million units in 2012. Most of these shipments will be PCs and PC peripherals.

DisplayPort Adoption

“I don’t see DisplayPort really gaining significant market share in the consumer-electronics world in the next five years,” says O’Rourke. “During that time, it will dominate the PC and PC-peripheral world, and HDMI will dominate the consumer-electronics world … The key for DisplayPort in the PC segment is that you can get rid of both the DVI controller and the VGA silicon.” Randy Lawson, iSuppli’s senior analyst for display electronics told EDN that iSupply expects that by 2010 DP will dominate desktop and notebook PCs adoption rates.

DisplayPort has several advantages for use on mobile equipment. DP is easier than HDMI to integrate and implement in silicon as chips get smaller. Alan Kobayashi, a director of R&D at  STMicroelectronics says that as semiconductor processes shrink, DisplayPort is more efficient than current display technologies. DisplayPort has a lower power consumption than HDMI, according to Pericom Semiconductor’s Abdullah Raouf. DisplayPort in on the newer north-bridge chip sets’ integrated graphics on newer CPUs, as well as in discrete GPUs on graphics cards, according to Bruce Montag, chairman of the DisplayPort Task Group and senior technical staff member at Dell. “The market is quickly moving toward the integration of  DisplayPort IP into a north-bridge or a discrete-graphics solution,says In-Stat’s O’Rourke. Digital TVs will begin adopting DisplayPort as an external port by 2010.  In-Stat expects that, higher-end digital TVs and then to other digital-CE products, including Blu-ray players and recorders and set-top boxes. will then adopt DP in the consumer market.

DisplayPort is an attractive option for those seeking to cut the cost and improve the bandwidth and scalability of A/V interface connections. The computer electronics industry is increasingly adopting open industry standards. DisplayPort’s support of  A/V, USB, and Ethernet make it a more open standard. Open standards like DisplayPort v1.2 provide a more versatile system which should be a consideration in any purchasing decision. ISuppli, “believes that the DisplayPort interface standard will be the successor to the venerable VGA interface on PC monitors as well as desktop and notebook PCs“. VESA’s Lempesis points out that DisplayPort  is “a truly open, flexible, extensible multimedia interconnect standard” and “is rapidly gaining traction in consumer electronics applications.

 

Ralph Bach has been in IT long enough to know better and has blogged from his Bach Seat about IT, careers, and anything else that catches his attention since 2005. You can follow him on LinkedInFacebook, and Twitter. Email the Bach Seat here.