- A fax (short for facsimile and sometimes called telecopying) is the telephonic transmission of scanned-in printed material (text or images), usually to a telephone number associated with a printer or other output device. The original document is scanned with a fax
machine, which treats the contents (text or images) as a single fixed graphic image, converting it into a bitmap. In this digital form, the information is transmitted as electrical signals through the telephone system. The receiving fax machine
reconverts the coded image and prints a paper copy of the document.
Almost all modems manufactured today are capable of sending and receiving fax data. Fax/modem software generates fax signals directly from disk files or the screen. Even if a document is text only, it is treated by the computer as a scanned image and is transmitted to the receiver as a bitmap. Faxing a message online works well if the recipient wants only to read the message. However, if the document requires editing, it must be converted into ASCII text by an OCR (optical character
recognition) program, or it must be retyped manually into the computer. A more efficient method of sending documents that require modification is through the e-mail system. E-mail files are already ASCII text so they can be edited immediately in any text editor or word processing program.
The Internet now provides a new and cheaper way to send faxes in some cases. A number of free and commercial companies provide arrangements for using the Internet rather than the public telephone system for most or part of the path to the fax point. Some services also provide the ability to broadcast a fax to multiple addresses.
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Learn more about Network Administration |
| Networking FAQ: These FAQs for networking will help you learn networking basics. |
| Network user management: Use this guide to learn how to manage problem users on your network -- from un-savvy Internet novices to toxic bosses -- to keep your network secure. |
| Troubleshooting -- 'Network Know-How' Chapter 17: Troubleshooting, Chapter 17 of 'Network Know-How,' shows tools and methods that identify and solve network problems. Use this chapter as a tutorial to fixing computer connections. |
| Network management frameworks: FCAPS and ITIL: Network management is a complex topic. Thus far, two frameworks exist that can be of some use for understanding and taming network management: FCAPS and ITIL. |
| Networking podcasts: Listen to our networking podcasts and learn more about technologies you need to know to keep your network running smoothly. |
| The IT Guy: Networking comics: In our networking comic series, the IT guy and his office coworkers encounter day-to-day network challenges. |
| LAST UPDATED: |
06 Jun 2006
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