The digital dark age is a lack of historical information in the digital age as a direct result of outdated file formats, software, or hardware that becomes corrupt, scarce, or inaccessible as technologies evolve and data decays. [1] Future generations may find it difficult or impossible to retrieve electronic documents and multimedia, because they have been recorded in an obsolete and obscure file format, or on an obsolete physical medium; for example, floppy disks. The name derives from the term Dark Ages in the sense that there could be a relative lack of records in the digital age as documents are transferred to digital formats and original copies are lost. An early mention of the term was at a conference of the International Federation of Library Associations and Institutions (IFLA) in 1997. [2] The term was also mentioned in 1998 at the Time and Bits conference, [3] [4] which was co-sponsored by the Long Now Foundation and the Getty Conservation Institute.
The problem is not limited to text documents, but applies equally to photos, video, audio and other kinds of electronic documents. One concern leading to the use of the term is that documents are stored on physical media which require special hardware in order to be read and that this hardware will not be available in a few decades from the time the document was created.
The digital dark age also applies to the problems which arise due to obsolete file formats. In such a case, it is the lack of necessary software which causes problems when retrieving stored documents. This is especially problematic when proprietary formats are used, in which case it might be impossible to write appropriate software to read the file.
The Internet Archive stated in 2013 that a digital dark age is present, and one of their goals is to prevent digital materials from disappearing into the past. [5]
Vinton Cerf, Vice President of Google, showed his concerns about data preservation in the annual meeting of the American Association for the Advancement of Science in 2015: "As the way that we store information about ourselves develops, memories stored in files that use older technology are becoming harder to access. That could mean that historians of the future are unable to learn about our lives". His suggested solution consists of preserving a sample of every piece of software and hardware that has ever existed so that it never becomes obsolete. He proposed taking an X-ray snapshot of the content, the application and the operating system along with a description of the machine. This information should be then stored, instead of in a museum, in servers in the cloud. [6]
A famous example is NASA, whose early space records have suffered from a dark age issue more than once. For over a decade, magnetic tapes from the 1976 Viking Mars landing were unprocessed. When later analyzed, the data was unreadable as it was in an unknown format and the original programmers had either died or left NASA. The images were eventually extracted following many months of puzzling through the data and examining how the recording machines functioned. [7] The original Moon landing tapes were likely erased and reused, with the only video recordings of the Apollo 11 landings being later copies. [8]
Another example is the BBC Domesday Project in which a survey of the nation was compiled 900 years after the Domesday Book was published. While the original Domesday Book of 1086 is still readable today, there were great fears that the discs of the 1986 Domesday Project would become unreadable as software and disk drives capable of reading the format became rarer and rarer. However, in 2002 the CAMiLEON project migrated the information to a system called DomesEm, allowing it to be accessed on modern computers. [9] More recently, the Domesday86 Project has continued this preservation effort by developing a digitizer for the original LaserDiscs and emulation software for the original BBC Domesday computer system.
Encryption may exacerbate the problem of preserving data, since decoding adds complexity even when the relevant software is available. [10] Historically, encrypted data is quite rare, but even the very simple means available throughout history have provided many examples of documents that can only be read with great effort. For example, it took the capacity of a distributed computing project to break the mechanically generated code of a single brief World War II submarine tactical message. [11]
As more records are stored in digital form, there have been several measures to standardize electronic file formats so software to read them is widely available and can be re-implemented on new platforms if necessary.
PDF/A is an open standard based on Adobe Systems PDF format. [12] It has been widely adopted by governments and archives around the world, such as the United Kingdom. [13]
The Open Document Format for Office Applications (OpenDocument) has been standardized by OASIS in 2005, and by ISO in 2006. Since then, support for OpenDocument has been implemented in a large number of open-source and proprietary software. Therefore, using OpenDocument is one option for archiving editable documents from office applications. More broadly, the use of open-source software is a prevention measure. [14] Since the source code for reading and writing a file format is open, the code can be used as a base for future implementations. In 2007, the chief information officer of the UK's National Archives stated "We welcome open-source software because it makes our lives easier". [15]
In July 2007, Microsoft created a partnership with the UK's National Archives to prevent the digital dark age and "unlock millions of unreadable stored computer files". [16] [17] [18] UK's National Archives now accepts various file formats for long-term preservation, including Office Open XML, PDF and OpenDocument. [19]
The notion of the digital dark age has been criticized by some scholars. Some of these, such as David Anderson and Jon Tilbury, view it as alarmist rhetoric, maintaining that the notion of a "dark age" incorrectly states the current condition. They argue that there has been significant progress in digital preservation and evidenced in the way organizations continue to find and reuse critical long-term digital information while finding new ways of sharing these with the public. [20] Some historians also fault proponents of the digital dark age for historical inaccuracies. These include Marilyn Deegan and Simon Tanner's claim that the Gutenberg printing revolution led Europe out of the Dark Ages, a period said to be marked by the loss of knowledge of the learning of the ancient Greeks and Romans. [21] It is argued that knowledge and information about classical learning had been recovered during the Middle Ages and it was not mainly due to the printing revolution but, instead, was largely a result of the intellectual exchange between Islamic and Christian cultures. [22]
Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images and other information needed to display it. PDF has its roots in "The Camelot Project" initiated by Adobe co-founder John Warnock in 1991. PDF was standardized as ISO 32000 in 2008. The last edition as ISO 32000-2:2020 was published in December 2020.
Data storage is the recording (storing) of information (data) in a storage medium. Handwriting, phonographic recording, magnetic tape, and optical discs are all examples of storage media. Biological molecules such as RNA and DNA are considered by some as data storage. Recording may be accomplished with virtually any form of energy. Electronic data storage requires electrical power to store and retrieve data.
A document management system (DMS) is usually a computerized system used to store, share, track and manage files or documents. Some systems include history tracking where a log of the various versions created and modified by different users is recorded. The term has some overlap with the concepts of content management systems. It is often viewed as a component of enterprise content management (ECM) systems and related to digital asset management, document imaging, workflow systems and records management systems.
Tag Image File Format or Tagged Image File Format, commonly known by the abbreviations TIFF or TIF, is an image file format for storing raster graphics images, popular among graphic artists, the publishing industry, and photographers. TIFF is widely supported by scanning, faxing, word processing, optical character recognition, image manipulation, desktop publishing, and page-layout applications. The format was created by the Aldus Corporation for use in desktop publishing. It published the latest version 6.0 in 1992, subsequently updated with an Adobe Systems copyright after the latter acquired Aldus in 1994. Several Aldus or Adobe technical notes have been published with minor extensions to the format, and several specifications have been based on TIFF 6.0, including TIFF/EP, TIFF/IT, TIFF-F and TIFF-FX.
The BBC Domesday Project was a partnership between Acorn Computers, Philips, Logica, and the BBC to mark the 900th anniversary of the original Domesday Book, an 11th-century census of England. It has been cited as an example of digital obsolescence on account of the physical medium used for data storage.
Digital obsolescence is the risk of data loss because of inabilities to access digital assets, due to the hardware or software required for information retrieval being repeatedly replaced by newer devices and systems, resulting in increasingly incompatible formats. While the threat of an eventual "digital dark age" was initially met with little concern until the 1990s, modern digital preservation efforts in the information and archival fields have implemented protocols and strategies such as data migration and technical audits, while the salvage and emulation of antiquated hardware and software address digital obsolescence to limit the potential damage to long-term information access.
UVC-based preservation is an archival strategy for handling the preservation of digital objects. It employs the use of a Universal Virtual Computer (UVC)—a virtual machine (VM) specifically designed for archival purposes, that allows both emulation and migration to a language-neutral format like XML.
In library and archival science, digital preservation is a formal process to ensure that digital information of continuing value remains accessible and usable in the long term. It involves planning, resource allocation, and application of preservation methods and technologies, and combines policies, strategies and actions to ensure access to reformatted and "born-digital" content, regardless of the challenges of media failure and technological change. The goal of digital preservation is the accurate rendering of authenticated content over time.
Digital permanence addresses the history and development of digital storage techniques, specifically quantifying the expected lifetime of data stored on various digital media and the factors which influence the permanence of digital data. It is often a mix of ensuring the data itself can be retained on a particular form of media and that the technology remains viable. Where possible, as well as describing expected lifetimes, factors affecting data retention will be detailed, including potential technology issues.
Enterprise content management (ECM) extends the concept of content management by adding a timeline for each content item and, possibly, enforcing processes for its creation, approval, and distribution. Systems using ECM generally provide a secure repository for managed items, analog or digital. They also include one methods for importing content to manage new items, and several presentation methods to make items available for use. Although ECM content may be protected by digital rights management (DRM), it is not required. ECM is distinguished from general content management by its cognizance of the processes and procedures of the enterprise for which it is created.
Preservation of documents, pictures, recordings, digital content, etc., is a major aspect of archival science. It is also an important consideration for people who are creating time capsules, family history, historical documents, scrapbooks and family trees. Common storage media are not permanent, and there are few reliable methods of preserving documents and pictures for the future.
In computing, data recovery is a process of retrieving deleted, inaccessible, lost, corrupted, damaged, or formatted data from secondary storage, removable media or files, when the data stored in them cannot be accessed in a usual way. The data is most often salvaged from storage media such as internal or external hard disk drives (HDDs), solid-state drives (SSDs), USB flash drives, magnetic tapes, CDs, DVDs, RAID subsystems, and other electronic devices. Recovery may be required due to physical damage to the storage devices or logical damage to the file system that prevents it from being mounted by the host operating system (OS).
PDF/A is an ISO-standardized version of the Portable Document Format (PDF) specialized for use in the archiving and long-term preservation of electronic documents. PDF/A differs from PDF by prohibiting features unsuitable for long-term archiving, such as font linking and encryption. The ISO requirements for PDF/A file viewers include color management guidelines, support for embedded fonts, and a user interface for reading embedded annotations.
The conservation and restoration of new media art is the study and practice of techniques for sustaining new media art created using from materials such as digital, biological, performative, and other variable media.
Adobe Digital Editions is an e-book reader software program from Adobe. It is used for acquiring, managing, and reading e-books, digital newspapers, and other digital publications. The software supports EPUB and PDF. It implements a proprietary scheme of digital rights management (DRM) which, since the version 1.5 release in May 2008, allows document sharing among multiple devices and user authentication via an Adobe ID. Digital Editions is a successor to the Acrobat eBook Reader application.
Oral history preservation is the field that deals with the care and upkeep of oral history materials, whatever format they may be in. Oral history is a method of historical documentation, using interviews with living survivors of the time being investigated. Oral history often touches on topics scarcely touched on by written documents, and by doing so, fills in the gaps of records that make up early historical documents.
The following is a comparison of e-book formats used to create and publish e-books.
Database preservation usually involves converting the information stored in a database to a form likely to be accessible in the long term as technology changes, without losing the initial characteristics of the data.
A machine-readable document is a document whose content can be readily processed by computers. Such documents are distinguished from more general machine-readable data by virtue of having further structure to provide the necessary context to support the business processes for which they are created.
Lost media are any media that are believed to no longer exist in any format, or for which no copies can be located. The term primarily encompasses visual, audio, or audiovisual media such as films, television and radio broadcasts, music, and video games.
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Digital Dark Age (Computer History Museum, 2011) |