Undolog.com

I want to pick an interesting Post by Thomas Tessarolo titled " If YouTube is gone , "an argument that is very curious and disturbing in some respects. Not long ago, during an episode of Quark Piero Angela, has discussed the consistency of digital information in relation to the neo-digital photography. In recent years digital photography has clearly eclipsed traditional photography with the introduction of cameras in mobile phones and digital cameras to lower costs for good quality. There was, therefore, a radical change in the management of the photographs that are on CD, DVD - or the PC itself - their ideal of conservation, preservation and display. The main question that arose from the show was: our children or grandchildren will be able to view the "old" CD with our pictures?

I still have faded Polaroid of the seventies, as I happened to retrieve photographs - really old - taken between 1940 and 1960! While these photos have lost momentum and the time has left its mark, no doubt remains that were preserved more or less discreetly over more than half a century. Also I had no problem for "show" being proposed on a support analog! If we consider that I can not read disks from 3 inches and a quarter written in 1995, the issue could begin to be worrying.

ALEXANDRIA DOT NET

What happened to the library of Alexandria , a fire that destroyed an important heritage that no one is now able to quantify, it is perhaps a repeatable event? What would happen if an electromagnetic wave just swept into power on Earth azzerrando all digital information is currently stored? Certainly, there would be far more problems, more bank accounts, stall (or collapse) of the western economy, etc ... etc ... a massacre. However, this - remote - possibility is to accumonata as an environmental disaster caused by the fall of an asteroid! Is it true?

The circle is closed

What could access it, in a sense, quite curious. Among the services offered online on the Internet, blogs are the most popular. Imagine what would happen if the server of our blog shut or suffer an injury - including backup! The Blog (The Post) are normally written directly online, there is no local copy, at least I, for example, do not possess it (I must obtain ...).
We should start thinking of printing on paper all the Post issued so he can one day rebuild the blog compared to a total destruction of digital material. The digital, then, is or is no longer sure of analog?

A printed photograph is subject to wear and tear of time, dust, light, etc ... However, a CD or DVD is damaged, despite maintaining the data so - apparently - more stable (not sure) of any other substrate analogue.
It seems the only solution is to use the digital, even for archival purposes, but at the same time continue to use the classic mode of storage.

Analog -> Digital -> Analog

The books, for example, have a duration long enough if we consider that even today you can read texts dating before Christ! In addition, some information is not lost with time. In a photograph, for example, the information is the predominant light, the colors, the picture itself. This, on a base analog, is therefore subject to a greater wear. In a book, however, information is more stable and lasting. A text with pages worn at the edges or yellowed by time continues to mentere complete and intact his main piece of information: the text.

However, this solution of a return to analog can be applied with a certain simplicity in very specific contexts, such as precisely pictures or texts. The music and other digital information typically require alternative solutions not simple to implement. A piece of music, for example, may be stored in the form of score, as a set of sheets of paper, but is certainly not a copy of the original. Videos are too complex to be stored in other forms.

In my opinion this is a very important topic in a digital age such as ours. The fact that there is no precedent that we allertino in this regard is not sufficient excuse to not think about it carefully. If anything were to cause a disaster of proportions Digital important here is that companies like mushrooms spunterebbero and initiatives for the preservation of digital data.
Why wait for the inevitable and not think of a solution right now?

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First, as mentioned in the Post encryption system RSA is a public key encryption and takes advantage of the properties of prime numbers. Moreover, the arithmetic adopted (in the calculations) is not the ordinary, but the so-called finite or artirmetica modular. Let's start right from the latter to proceed step by step in the implementation of RSA encryption.

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Since we're talking more and more about encryption, decryption code, adopted in violation of the protections on DVDs and more, here are some hints to help you understand, at least in broad terms, an argument is extremely varied, interesting and complex.

The art of critografia, ie the ability to hide a message to everyone except for a specific recipient, dates back to ancient times. In general encrypt a message is to choose an encoding method, and there are several. The drawback, until recently, was that this method should not only be known by the sender (who criptava the message), but - of course - even by the recipient. In other words, sender and recipient must find a way to exchange the encryption method.

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Who has had the ability and patience to see the last of Steve Jobs Keynote, which presents the new Apple iPhone, will surely find the latest wonder fascinating multi-touch technology in Cupertino.
Fantasies to "Minority Report" apart (the reality often exceeds the imagination really), what struck me most, even if already present in many smart-phone on the market for some time, is the ability to surf the Internet like a home PC. The iPhone comes in direct competition with traditional phones and not with the smart-phone market today. Apple has introduced its solution for mobile, following in his classic line guide: simplicity - then - mass distribution, as has happened with the iPod.

If the smart-phone market today, those with Windows Mobile on board for example, allow you to surf the Internet, however, are perceived by the "mass market" as a hybrid between a phone and a notebook. I mean something different from the "phone" every day. To date, a phone is a "cell" in the sense that Web browsing is relegated to the few - a few even know that you can do it - (given how cheap) with solutions very far from those of a home PC, the size of display, for the speed of bandwidth, due to the difficulty of interaction with the keyboard or mouse simulated, etc. ...

However, almost unnoticed, it seems to me that there is a small revolution in the act of considerable interest, at least for Web developers

Being able to navigate a site from the "street", without changing the technology used is a huge step forward. To date some reality on the Web are double - if not triple: WAP, Flash Lite (version for Windows Mobile or Symbian) and Internet standards. Bring together and unify the browsing technologies is an important achievement, the antechamber to the true distribution of navigaione via mobile.
The WAP, for example, as has striven to emulate the web itself is failed completely. This reminds me of the digital terrestrial!

The Net TV, for example, in this new situation may find fertile ground to flourish even more than a few years ago. So there are all prerequisites to give further impetus to the second youth of the Internet. On the one hand, new forms of aggregation of the community and the other the possibility of exploiting these "experiences" as well as at home even in the "mobility" utter.

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Question: We consider the Ajax applications like real prorie RIA (Rich Internet Application - RIA is a web application with all the features and functionality of a traditional desktop application for PC)?
According to Ryan Stewart, no - or at least not now.

The role of the desktop Rich Internet Applications by ZDNet 's Ryan Stewart - Rich Internet Applications have helped change the face of the web. It's interactive blackberries, Designers Have Been Able to leave Their mark and innovation in web development has soared. Rich Internet Applications helped open up the web to better Experiences and now They are doing the examination for desktop applications. Where do RIAs fit into the world of desktop development?

In fact, competition with other "approaches" - so to speak - is very high. The recent explosion in Net TV, for example, shows that the union is strength. In "Ajax" you can not see a video, for one thing. How you can make many other stuff. I do not think Ajax will be the absolute future. I see in Ajax more like a browser extension and a new way to address some of the dynamics on DU first even considered.

However, if someone had noticed it, there are still obstacles to overcome. For example:

• Improve the compatibility between different browsers on the market, enlargement topic discussed on this very Blog
• Allow greater interaction between Web pages and the operating system "host", such as a Drag & Drop from the desktop to the Web page
• Standardization of scripting: JScript, JavaScript (1.3, 1.7, ...), VBScript
• Accessibility, usability and security, given that we are on the net!

Libraries, Prototype / Script.aculo.us and YUI components: the real stumbling block?

When a developer creates a library or a frame-work to fix (once and for all) a variety of needs, start creating a monster. Often do not realize it but the developer link end-user is really convoluted. It starts, for example, with the creation of a JavaScript library can create simple windows. Just recently, and someone creates a similar library that allows you to create modal windows resizable and with the management order and overlap. After a while, 'it comes up and you also implements customized graphics ... and so on.

Basically when you get something, the instant immediately following that something is simply not enough, seems to be the standard and then seek new accessories to even further improve the performance or appearance. All end-user requests! And the developer runs, almost like a frightened dog, the end-user is always right!

This race continues, in a universe like the Internet, threatens to cast long to bring more confusion than anything else.

Web 3.0?

Lately experiences (beta) have proliferated in the Web2.0 on the network at an impressive pace. Each has brought attention to its Ajax-style application, each with its embedded solutions, relying on libraries notes, writing proprietary frame-work, etc. ...
Each experience had its peculiarities: some was visually appealing, some extremely fast, extremely customizable, and other other extremely usable.
But no one, until now, has managed to combine all this in a single environment.

Ragionandoci carefully is evident that the reason is the lack of support provided by the browser itself and by the immense complexity of the problem.

Even if someone has assimilated the browser to an operating system, it still holds a huge advantage. Foremost among these is the so-called Kernel. What is the kernel Explorer or FireFox? Both, like Opera or Safari, barely support the scripting language called JavaScript (or JScript as the case). Mozilla, FireFox is about to release its version of JavaScript 1.7, really interesting. But will Microsoft Explorer? It will install an ActiveX emulate him, wait until 2012 for the release of IE8 or use a myriad of if to understand on what platform you are working?

I can only agree with Ryan Stewart. For the moment, Ajax is a technique of great help in very specific cases, but to compare this technique (and I stress technique is not technology) to a RIA seems to me - at least for now - really eccesivo.

Macromedia / Adobe

Interesting, however, are the technologies (and I emphasize technology and non-technical) Flex / Flash and Apollo, that after the acquisition of Macromedia by Adobe are going to live a second life.
I highly recommend to all interested parties to view the Adobe Labs , where he shows a nice new policy that certainly inspires more confidence in the future of Script.aculo.us - no offense, and without detracting from the developer.

But the Internet has a unique feature, that of surprise, so I'm not surprised at all that he said - in short - a myriad of nonsense!

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The evolution of technology related to information technology is constantly evolving. Especially since today between handhelds, notebooks, mobile phones last generation, digital cameras, it is increasingly difficult to identify a sustainable technology. Everything is "time", and "computing" has become very limited.
Now the so-called standards have very short life. If we look at such times that have passed between "Vinyl", "CD", the latest dispute between DVD and Blu-Ray (Sony) and HD-DVD (Toshiba) (where Blu-Ray seems to have won ...?) we see that are getting shorter.
What lies ahead for the future then? Seremo constantly forced to chase the various formats to keep our "video library" current state of the art?

The evolution of Flash technology, known as the Pennines (now available in 2GB and beyond) or the memory cards used in mobile phones and digital cameras (SD Card), could be a solution to solve the eternal dispute?

Also there are times to consider any new physiological technology must meet. As happened with the CD, beginning the cost to purchase them (both discs and readers / writers) was reserved for a select audience. By the time (indeed physiological) the dissemination to the general public has led to a significant reduction in costs. It follows that the greater the spread of technology lower the cost, or if you prefer the opposite. However the fact remains that time is invested. So the technology - in the guise of the big production technology - is able to control this race? Or will we consumers pay the price?
It is worthwhile, therefore, buy a Blu-Ray (players, recorders, blank discs) knowing that something new will come out soon and strabigliante; carryover as an example a 2004 article extracted PCSELF :

In future DVD 1 Terabyte of data

The new discs MODS (Multiplexed Optical Data Storage) can contain up to 472 hours of DVD quality video

A team of British researchers belonging to the Department of Physics at Imperial College London, in close collaboration with the Institute of Microtechnology of the University of Neuchotel and the Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, is working a project that will allow storing a terabyte of data (1000 GB) onto a double-sided and double layers in the same space as a conventional CD.

The new discs MODS (Multiplexed Optical Data Storage) can contain up to 472 hours of DVD-quality video and can also produce with costs comparable to those of DVD. The new player will maintain compatibility to current CD and DVD.

The new technology MODS, based on a particular asymmetric shape of the "pit" (micro) and "land" (land area) engraved with about 330 different angles, can read and decode the data reflected from these different angles giving much more information than is possible today to have with current technology.

If the group of researchers will be able to acquire sufficient funds to continue in the future and further research, it is estimated that the first MODS disks will be available on the market between 2010 and 2015.

All this is quite staggering ...
The PS3 - Sony being - it is rightly self-imposed its Blu-Ray as opposed to Microsoft for its Xbox 360 has chosen a completely different strategy, the DVD player is standard and if you want to buy a separate HD-DVD!
The convenience of "memory card" (Pennines, SD Card, Flash Memory, etc ...) is unquestionable, but this does not necessarily solve the problem. All in all, the "war" may move a short DVD from the "memory card", and therefore does not substantially change anything!
However, the USB-Pennine approach, where the (USB) port that accepts the device remains the same for a longer time, could play to our advantage. Indeed, the first Pennines from 64Mega are placed in exactly the same port that sees Pennines 2Gb (excluding the transition from USB1.0 to USB2.0)! At least you would have a more accommodating.
We'll see ...

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As already touched on " JavaScript vs. PHP "(or ASP, CFM, ...), the question of whether or not to enter a kernel Web2.0 JavaScript in your scripts, instead of leaving it - in the majority of members - the server side, can cause confusion if not bewilderment. However there are good reasons to favor the server than the client, reasons that have nothing to do with Web2.0 that, in contrast, puts the spotlight on your JavaScript scripts.

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