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Fax — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Fax
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-06T02:15:57.826Z
SHA-256 of the archived text: 346700dbe04619e57cd696a36e5450b7b52039272da20d3bc1715449fc934710
Stable URL of this page: https://metraipolis.com/documento/dc_677b11a2c021

How to cite

Fax — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Fax (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_677b11a2c021 (Metraipolis archive dc_677b11a2c021, sha256 346700dbe04619e57cd696a36e5450b7b52039272da20d3bc1715449fc934710)

BibTeX

@misc{dc677b11a2c021,
  title = {Fax — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Fax},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_677b11a2c021; sha256 346700dbe04619e57cd696a36e5450b7b52039272da20d3bc1715449fc934710},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Fax. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Fax (short for facsimile), sometimes called telecopying or telefax (short for telefacsimile), is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other output device. The original document is scanned with a fax machine (or a telecopier), which processes the contents (text or images) as a single fixed graphic image, converting it into a bitmap, and then transmitting it through the telephone system in the form of audio-frequency tones. The receiving fax machine interprets the tones and reconstructs the image, printing a paper copy. Early systems used direct conversions of image darkness to audio tone in a continuous or analog manner. Since the 1980s, most machines transmit an audio-encoded digital representation of the page, using data compression to transmit areas that are all-white or all-black, more quickly. Initially a niche product, fax machines became ubiquitous in offices in the 1980s and 1990s. However, they have largely been rendered obsolete by Internet-based technologies such as email and the World Wide Web, but are still used in some medical administration and law enforcement settings.

Tema degli esploratori: fiducia digitale e crittografia (deposito sistematico; ricerca «digital signature»).
Fonte: Wikipedia in inglese, voce «Fax» — https://en.wikipedia.org/wiki/Fax
Wikidata Q132744: «servizio telefonico per la trasmissione di immagini fisse» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q132744
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Fax?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1378621863, consultata il 2026-10-06T02:15:21.456Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 093124d3a7a2ba2d98065a53f88229ea4ab0546bb4cda1a3e7365151a0697893