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Overview of the current state of technology for online reservation

Antecedents[ edit ] During the 19th century, the term "on line" was commonly used in both the railroad and telegraph industries. For railroads, a signal box would send messages down the line trackvia a telegraph line cableindicating the track's status: When online it will attempt to connect to mail servers to check for new mail at regular intervals, for exampleand when offline it will not attempt to make any such connection.

The online or offline state of the MUA does not necessarily reflect the connection status between the computer on which it is running and the internet. That is, the computer itself may be online—connected to Internet via a cable modem or other means—while Outlook is kept offline by the user, so that it makes no attempt to send or to receive messages.

Room for Innovation: The Current State of Hotel Technology

Similarly, a computer may be configured to employ a dial-up connection on demand as when an application such as Outlook attempts to make connection to a serverbut the user may not wish for Outlook to trigger that call whenever it is configured to check for mail. A tape recorder, digital audio editoror other device that is online is one whose clock is under the control of the clock of a synchronization master device. When the sync master commences playback, the online device automatically synchronizes itself to the master and commences playing from the same point in the recording.

A device that is offline uses no external clock reference and relies upon its own internal clock.

Online and offline

When a large number of devices are connected to a sync master it is often convenient, if one wants to hear just the output of one single device, to take it offline because, if the device is played back online, all synchronized devices have to locate the playback point and wait for each other device to be in synchronization.

Offline browsing A third example of a common use of these concepts is a web browser that can be instructed to be in either online or offline states. The browser attempts to fetch pages from servers while only in the online state.

In the offline state, users can perform offline browsing, where pages can be browsed using local copies of those pages that have previously been downloaded while in the online state. This can be useful when the computer is offline and connection to the Internet is impossible or undesirable. The pages are downloaded either implicitly into the web browser's own cache as a result of prior online overview of the current state of technology for online reservation by the user or explicitly by a browser configured to keep local copies of certain web pages, which are updated when the browser is in the online 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 online state.

One such web browser capable of being explicitly configured to download pages for offline browsing is Internet Explorer. When pages are added to the Favourites list, they can be marked to be "available for offline browsing".

  1. In Internet Explorer version 6, the level of direct and indirect links, the maximum amount of local disc space allowed to be consumed, and the schedule on which local copies are checked to see whether they are up-to-date, are configurable for each individual Favourites entry.
  2. Numerous organizations have developed, or are developing, flash memory chips with collections of educational materials for offline use in smartphones, tablets, and laptops.
  3. Another illustrates "the off-line store" where "All items are actual size! When pages are added to the Favourites list, they can be marked to be "available for offline browsing".
  4. He argues that even the telephone can be regarded as an online experience in some circumstances, and that the blurring of the distinctions between the uses of various technologies such as PDA versus mobile phone, internet television versus internet, and telephone versus Voice over Internet Protocol has made it "impossible to use the term online meaningfully in the sense that was employed by the first generation of Internet research".

Internet Explorer will download to local copies both the marked page and, optionally, all of the pages that it links to. In Internet Explorer version 6, the level of direct and indirect links, the maximum amount of local disc space allowed to be consumed, and the schedule on which local copies are checked to see whether they are up-to-date, are configurable for each individual Favourites entry.

Numerous organizations have developed, or are developing, flash memory chips with collections of educational materials for offline use in smartphones, tablets, and laptops.

  1. He conjectures that greater legal status may be assigned to online relationships pointing out that contractual relationships, such as business transactions, online are already seen as just as "real" as their offline counterparts , although he states it to be hard to imagine courts awarding palimony to people who have had a purely online sexual relationship.
  2. The browser attempts to fetch pages from servers while only in the online state. He conjectures that greater legal status may be assigned to online relationships pointing out that contractual relationships, such as business transactions, online are already seen as just as "real" as their offline counterparts , although he states it to be hard to imagine courts awarding palimony to people who have had a purely online sexual relationship.
  3. For railroads, a signal box would send messages down the line track , via a telegraph line cable , indicating the track's status.

Offline messages[ edit ] With the growing communication tools and media, the words offline and online are used very frequently. If a person is active over a messaging tool and is able to accept the messages it is termed as online message and if the person is not available and the message is left to view when the person is back, it is termed as offline message. In the same context, the person's availability is termed as online and non-availability is termed as offline. Generalisations[ edit ] Online and offline distinctions have been generalised from computing and telecommunication into the field of human interpersonal relationships.

The distinction between what is considered online and what is considered offline has become a subject of study in the field of sociology. Online is virtuality or cyberspaceand offline is reality i.

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Slater states that this distinction is "obviously far too simple". He argues that even the telephone can be regarded as an online experience in some circumstances, and that the blurring of the distinctions between the uses of various technologies such as PDA versus mobile phone, internet television versus internet, and telephone versus Voice over Internet Protocol has made it "impossible to use the term online meaningfully in the sense that was employed by the first generation of Internet research".

He conjectures that greater legal status may be assigned to online relationships pointing out that contractual relationships, such as business transactions, online are already seen as just as "real" as their offline counterpartsalthough he states it to be hard to imagine courts awarding palimony to people who have had a purely online sexual relationship. Several cartoons appearing in The New Yorker have satirized this.

One includes Saint Peter asking for a username and a password before admitting a man into Heaven. Another illustrates "the off-line store" where "All items are actual size!