In information handling, the U.S. Federal Standard 1037C (Glossary of Telecommunication Terms) defines a hard copy as a permanent reproduction, or copy, in the form of a physical object, of any media suitable for direct use by a person (in particular paper), of displayed or transmitted data. Examples of hard copies include teleprinter pages, continuous printed tapes, computer printouts, and radio photo prints. On the other hand, physical objects such as magnetic tapes, floppy disks, or non-printed punched paper tapes are not defined as hard copies by 1037C.[1]
A file that can be viewed without printing on a screen is sometimes called a soft copy.[2][3] The U.S. Federal Standard 1037C defines "soft copy" as "a nonpermanent display image, for example, a cathode ray tube display."[4]
The term "hard copy" predates the digital computer. In the book and newspaper printing process, "hard copy" refers to a manuscript or typewritten document that has been edited and proofread and is ready for typesetting or being read on-air in a radio or television broadcast. The old meaning of hard copy was mostly discarded after the information revolution.[5]
One often-overlooked use for printers is in the field of IT security. Copies of various system and server activity logs are typically stored on the local filesystem, where a remote attacker – having achieved their primary goals – can then alter or delete the contents of the logs in an attempt to "cover their tracks" or otherwise thwart the efforts of system administrators and security experts. However, if the log entries are simultaneously given to a printer, line-by-line, a local hard-copy record of system activity is created – which cannot be remotely altered or otherwise manipulated. Dot matrix printers are ideal for this task, as they can sequentially print each log entry, one at a time, as they are added to the log. The usual dot-matrix printer support for continuous stationery also prevents incriminating pages from being surreptitiously removed or altered without evidence of tampering.
"Dead-tree" dysphemism
Look up dead tree in Wiktionary, the free dictionary.
The hacker's Jargon File defines a dead-tree version to be a paper version of an online document, where "dead trees" refer to paper.
A saying from the Jargon File is that "You can't grep dead trees", which comes from the Unix command grep, which searches the contents of text files. This means that there is an advantage to keeping documents in digital form, rather than on paper, so that they can be more easily searched for specific contents. A similarly entry in the Jargon File is "tree-killer", which may refer either to a printer or a person who wastes paper.
Dead-tree edition refers to a printed paper version of a written work, as opposed to digital alternatives such as a web page.[6]
hard, copy, printout, redirects, here, british, computing, magazine, printout, magazine, other, uses, disambiguation, information, handling, federal, standard, 1037c, glossary, telecommunication, terms, defines, hard, copy, permanent, reproduction, copy, form,. Printout redirects here For the British computing magazine see Printout magazine For other uses see Hard copy disambiguation In information handling the U S Federal Standard 1037C Glossary of Telecommunication Terms defines a hard copy as a permanent reproduction or copy in the form of a physical object of any media suitable for direct use by a person in particular paper of displayed or transmitted data Examples of hard copies include teleprinter pages continuous printed tapes computer printouts and radio photo prints On the other hand physical objects such as magnetic tapes floppy disks or non printed punched paper tapes are not defined as hard copies by 1037C 1 A file that can be viewed without printing on a screen is sometimes called a soft copy 2 3 The U S Federal Standard 1037C defines soft copy as a nonpermanent display image for example a cathode ray tube display 4 The term hard copy predates the digital computer In the book and newspaper printing process hard copy refers to a manuscript or typewritten document that has been edited and proofread and is ready for typesetting or being read on air in a radio or television broadcast The old meaning of hard copy was mostly discarded after the information revolution 5 Contents 1 Use in computer security 2 Dead tree dysphemism 3 References 4 External linksUse in computer security EditOne often overlooked use for printers is in the field of IT security Copies of various system and server activity logs are typically stored on the local filesystem where a remote attacker having achieved their primary goals can then alter or delete the contents of the logs in an attempt to cover their tracks or otherwise thwart the efforts of system administrators and security experts However if the log entries are simultaneously given to a printer line by line a local hard copy record of system activity is created which cannot be remotely altered or otherwise manipulated Dot matrix printers are ideal for this task as they can sequentially print each log entry one at a time as they are added to the log The usual dot matrix printer support for continuous stationery also prevents incriminating pages from being surreptitiously removed or altered without evidence of tampering Dead tree dysphemism Edit Look up dead tree in Wiktionary the free dictionary The hacker s Jargon File defines a dead tree version to be a paper version of an online document where dead trees refer to paper A saying from the Jargon File is that You can t grep dead trees which comes from the Unix command grep which searches the contents of text files This means that there is an advantage to keeping documents in digital form rather than on paper so that they can be more easily searched for specific contents A similarly entry in the Jargon File is tree killer which may refer either to a printer or a person who wastes paper Dead tree edition refers to a printed paper version of a written work as opposed to digital alternatives such as a web page 6 References Edit Hard copy Archived 5 May 2012 at the Wayback Machine as defined in Federal Standard 1037C Soft Copy Collins English Dictionary Soft Copy dictionary com Soft copy as defined in Federal Standard 1037C hard copy as defined by Merriam Webster Online Definition of DEAD TREE www merriam webster com Retrieved 21 September 2018 External links Edit Look up hard copy or printout in Wiktionary the free dictionary This article incorporates public domain material from Federal Standard 1037C General Services Administration in support of MIL STD 188 Retrieved from https en wikipedia org w index php title Hard copy amp oldid 1092836444, wikipedia, wiki, book, books, library,
