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One example of Search Engines a common use

Search Engines

of these concepts is a Search Engines Mail User Agent that can Search Engines be instructed to be in either Search Engines "on-line" or "off-line" states. One such Search Engines MUA is

Search Engines

Microsoft Outlook. Search Engines When it is "on-line" it will attempt to connect to mail servers (to check for new mail Search Engines at regular intervals, for example), and when it is "off-line" it will Search Engines not attempt to make Search Engines any such connections. The "on-line" or "off-line" state of the MUA does not necessarily reflect the Search Engines connection status between the computer on which it is running and Internet. Search Engines The user may have the computer itself on-line, connected to Internet via a cable modem or an ADSL connection, but may wish for Outlook to be off-line, so that it makes no attempt to Search Engines send or to receive messages. Or the computer may be configured to Search Engines employ a dial-up connection on Search Engines demand (whenever an application such as Outlook attempts to make connection to a server), but Search Engines the connection may be an expensive telephone call from the particular location in which the computer currently happens to Search Engines be (such Search Engines as a hotel room) and the user may Search Engines not wish Outlook to trigger making that call every 5 or 10 minutes to check for mail. Another example of the use of these concepts is in the Search Engines world of digital audio technology. A tape recorder, digital editor, or other device that is "on-line" is Search Engines one whose clock is under the control of the clock of a "synchronization master" device. Search Engines When the sync master commences playback, the "on-line" device automatically synchronizes itself to the master and commences playing from the same point in the recording. Whereas a device that is "off-line" uses no external Search Engines clock reference and relies upon its own internal clock. When a large number of Search Engines devices are connected to a sync master, it is often convenient, if Search Engines one wants to hear just the output of one single device, to take Search Engines it off-line, because if the device is played back on-line all synchronized devices have to locate the playback point and Search Engines wait for each other to be in synchronization.[2] (For further related discussion, see MIDI timecode, word sync, and recording system synchronization.) A Search Engines third example of a Search Engines common use of these concepts is a web browser that can be Search Engines instructed

Search Engines

to be in either "on-line" or "off-line" states. The browser only attempts to fetch pages from servers Search Engines whilst in the "on-line" state. In Search Engines the "off-line" state, users can perform offline browsing, where pages can be browsed using local Search Engines copies of those pages Search Engines that have previously been downloaded whilst in the "on-line" state. This can be useful Search Engines when the computer itself is also off-line, with connection Search Engines to Internet expensive or impossible. The pages are either downloaded Search Engines implicitly Search Engines into the web browser's

Search Engines

own cache, as a result of prior on-line browsing by the user, or explicitly

Search Engines

by the browser being configured to keep local copies of certain web pages, which it keeps updated when the browser is in the on-line state, either by checking that the local copies are up-to-date at regular intervals or by checking that the local copies are up-to-date whenever the browser is switched to the on-line Search Engines state. Search Engines One such web browser capable of being explicitly configured to download pages Search Engines for offline browsing is Internet Explorer. When pages are added to the "Favourites" list, Search Engines they can be marked for being made "available for offline browsing". Search Engines Internet Explorer will download to local copies both the marked page and, optionally, all Search Engines of the pages that it links to. In Internet Explorer version 6, the Search Engines level of direct and indirect links, the maximum amount of Search Engines local disc Search Engines space allowed to be consumed, and the schedule on Search Engines which local copies are checked to see whether they are up-to-date, are configurable for each The ideas of "on-line" and Search Engines "off-line" have been Search Engines generalized from computing and telecommunication into the field of human interpersonal relationships. The distinction between what is considered "on-line" and what is considered "off-line" Search Engines has become a subject of study in the field of sociology.[7] The distinction between "on-line" and "off-line" is Search Engines conventionally seen as the distinction between computer-mediated communication and face-to-face communication (e.g. face Search Engines time), respectively. Search Engines "On-line" is virtuality, and "off-line" is reality (e.g. real life or Search Engines meatspace). Slater states that Search Engines this distinction is "obviously far too simple". To Search Engines support his argument that the distinctions in relationships are more complex Search Engines than a simple "on-line"/"off-line" dichotomy, he observes that some people draw no distinction between an Search Engines "on-line" relationship, such as indulging in cybersex, and an "off-line" relationship, such as being Search Engines pen-pals. He also argues that even the telephone can be regarded as Search Engines an "on-line" experience in some circumstances, and that the blurring Search Engines of the distinctions between the uses of various technologies (such as PDA and mobile telephone, television and Internet, Search Engines and telephone and Search Engines voice-over-IP) has made it "impossible to use the term 'on-line' meaningfully in the sense that was employed by Search Engines the first generation of Internet research".[7] Slater asserts that there are legal and regulatory pressures to reduce the distinction between "on-line" and "off-line", with a "general tendency to assimilate online to offline and erase the distinction", stressing, however, that this does not mean that

Search Engines

on-line relationships are being reduced to pre-existing Search Engines off-line relationships. He conjectures that greater legal status may be assigned to on-line relationships (pointing out that contractual relationships, Search Engines such as business transactions, on-line are Search Engines already seen as just as "real" as their off-line counterparts), although he states it to be hard to imagine courts awarding palimony to people who have had a purely Search Engines on-line sexual relationship. He also conjectures that an Search Engines "on-line"/"off-line" distinction may be seen by people as "rather quaint and not quite comprehensible" within 10 years The Search Engines distinction Search Engines where "on-line" is seen as virtuality and "off-line" as reality is Search Engines sometimes inverted, with "on-line" concepts being used to define and to explain "off-line" activities, rather than (as per Search Engines the conventions of the Search Engines desktop metaphor with its desktops, trash cans, folders, and so forth) the

Search Engines

other way around. Several cartoons by The New Yorker Search Engines have satirized this. One includes Saint Peter asking for a user Search Engines name and a password before Search Engines admitting a man into Heaven. Another illustrates "the off-line store" where "All items Search Engines are actual size!", where shoppers may "Take it home as soon as you pay for it!", and where "Merchandise may be handled prior to purchase!".

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