A download manager is a computer program dedicated to Distribution Software Corel Linux Download the task of downloading (and sometime uploading) possibly unrelated Distribution Software Corel Linux Download stand-alone files from (and sometime to) the Internet for storage. This is unlike a World Wide Web browser, which is mainly intended to browse Distribution Software Corel Linux Download web pages, composed of a Distribution Software Corel Linux Download multitude of smaller files, Distribution Software Corel Linux Download where error-free moving of files for permanent storage is of secondary importance. (A failed or incomplete web page file rarely ruins the page.) The typical download manager at a minimum provides means to recover from errors without losing the work already completed, and can optionally split the file to be downloaded (or uploaded) Distribution Software Corel Linux Download into 2 or more segments, which are then moved in parallel, potentially making the Distribution Software Corel Linux Download process faster within the limits of the available bandwidth. (A few servers are known to block moving files Distribution Software Corel Linux Download in parallel segments, on the Distribution Software Corel Linux Download principle that server capacity should be shared Distribution Software Corel Linux Download equally by all users.) Multi-source is the name given to files that are downloaded in parallel.
There are several things that some web browsers are not very good at. That's Download Free Simfarm where the download managers Distribution Software Corel Linux Download enter the equation:
Pausing the downloading of large files.
Resuming broken or paused downloads (especially for very large files).
Downloading files on poor connections.
Downloading several files from a site automatically according to simple rules (file types, updated Distribution Software Corel Linux Download files, etc. - Distribution Software Corel Linux Download see also Offline Browser).
Automatic recursive downloads (mirroring).
Scheduled downloads (including, automatic hang-up and shutdown).
Searching for mirror sites, and the handling of different connections to download the same file more quickly (segmented downloading).
Download managers are useful for active Internet users. For dial-up users, they can automatically dial the internet service provider at night, when rates or tariffs are usually lower, download the specified files, and Distribution Software Corel Linux Download hang-up. Distribution Software Corel Linux Download They can record which Distribution Software Corel Linux Download links the Distribution Software Corel Linux Download user clicks Distribution Software Corel Linux Download on during the day, and queue these files for later download. For broadband Distribution Software Corel Linux Download users, download managers can Distribution Software Corel Linux Download help download very large files by resuming broken Distribution Software Corel Linux Download downloads, by limiting the bandwidth used, so that other internet Distribution Software Corel Linux Download activities are not affected (slowed) and Distribution Software Corel Linux Download the server is not overloaded, or by Distribution Software Corel Linux Download automatically navigating a site and downloading pre-specified content Distribution Software Corel Linux Download (photo galleries, MP3 collections, etc.) this can also include automatically downloading whole sites and Distribution Software Corel Linux Download regularly updating them (see Mirroring).
Many download managers support Metalink, an XML file listing Distribution Software Corel Linux Download mirrors, checksums, and other information Distribution Software Corel Linux Download useful Distribution Software Corel Linux Download for downloading.
See below for some examples of commonly used download managers. Some downloaders are optimized for a certain function. For example, Distribution Software Corel Linux Download Offline Explorer is designed to download entire websites.
Download managers, such as Go!Zilla, were among the first adware applications displaying a banner ad in the user Distribution Software Corel Linux Download Free Download Macromedia Projector interface.
Related Distribution Software Corel Linux Download to download managers are two other breeds of Internet programs, file-sharing peer-to-peer applications (Kazaa, eMule, Distribution Software Corel Linux Download BitTorrent, Gnutella) and stream recorders (such as StreamBox VCR).
While download managers are designed to give users greater control over Distribution Software Corel Linux Download downloads, some downloaders are created to give that control to content distributors instead. Some software companies, for example Adobe [1], Distribution Software Corel Linux Download provide such downloaders for downloading software on their own site. Presumably this increases reliability Distribution Software Corel Linux Download and reduces tech support costs to them. A possible reason is increasing Distribution Software Corel Linux Download the control over redistribution of their software (even when the software is freeware).In computer technology Distribution Software Corel Linux Download and telecommunication, on-line and off-line are defined by Federal Standard 1037C. Distribution Software Corel Linux Download They are states or conditions of a Distribution Software Corel Linux Download "device or equipment" or of "a functional unit". To be considered on-line, a device must Shockwave Macromedia Download be at least one of:
"Under the direct control Distribution Software Corel Linux Download of another Distribution Software Corel Linux Download device"
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"Under the direct control of the system with which it is associated"
"Available for immediate use on demand by the system without Distribution Software Corel Linux Download human intervention"
"Connected to a system, and is in operation"
"Functional and ready for Distribution Software Corel Linux Download service"
while a device Distribution Software Corel Linux Download that is off-line is Distribution Software Corel Linux Download not (e.g. it has Distribution Software Corel Linux Download "its main power source disconnected or turned off", and is "off-power").
One example of a common use of these concepts is a Mail User Agent that Distribution Software Corel Linux Download can Distribution Software Corel Linux Download be instructed to be in either "on-line" or "off-line" states. One such MUA is Microsoft Free Download Book Outlook. Distribution Software Corel Linux Download When it is "on-line" it will attempt to connect to mail Distribution Software Corel Linux Download servers (to check Distribution Software Corel Linux Download for new mail at regular intervals, for example), and Distribution Software Corel Linux Download when it is "off-line" it will not attempt to make any such connections. Distribution Software Corel Linux Download The "on-line" or "off-line" state of the MUA Distribution Software Corel Linux Download does not necessarily reflect the connection status Distribution Software Corel Linux Download between the computer on which Distribution Software Corel Linux Download it is running and Distribution Software Corel Linux Download Internet. 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 Distribution Software Corel Linux Download to be off-line, so that it makes no attempt to send or to receive messages. Or the Distribution Software Corel Linux Download computer may be configured to Distribution Software Corel Linux Download employ a dial-up connection on demand (whenever an application such as Outlook Distribution Software Corel Linux Download attempts to Distribution Software Corel Linux Download make connection Distribution Software Corel Linux Download to a server), but the connection may be an expensive telephone call from the particular location in which the computer currently happens to be (such as a hotel room) and the user may not wish Outlook to trigger making that call every 5 or 10 minutes to check for mail.[1]
Another example of the use of these concepts Distribution Software Corel Linux Download is in the world of digital audio technology. A tape recorder, digital editor, or other device that is "on-line" is one Distribution Software Corel Linux Download whose clock is under the control of the clock of a "synchronization Distribution Software Corel Linux Download master" device. When the sync master Distribution Software Corel Linux Download 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 Distribution Software Corel Linux Download clock reference and relies upon its own internal Usb Download clock. When a large number of devices are connected to a sync master, it Distribution Software Corel Linux Download is Distribution Software Corel Linux Download often convenient, if one wants to hear just the Distribution Software Corel Linux Download output of one single device, to take it off-line, because if the Distribution Software Corel Linux Download device is played back on-line all synchronized devices have to locate the playback point and wait for each other to be in synchronization.[2] (For further related Distribution Software Corel Linux Download discussion, see MIDI timecode, word sync, and recording system synchronization.)
A third example Nyp Tammy Download of a common use of these concepts is a web browser that can be instructed to Distribution Software Corel Linux Download be in either "on-line" or "off-line" Distribution Software Corel Linux Download states. The browser only attempts to fetch pages from servers Distribution Software Corel Linux Download whilst Distribution Software Corel Linux Download in the "on-line" state. In the "off-line" state, users can perform offline browsing, where pages can be browsed Distribution Software Corel Linux Download using local copies of those pages that have previously been downloaded whilst in the "on-line" state. This can be useful when the computer Distribution Software Corel Linux Download itself is also off-line, Distribution Software Corel Linux Download with connection to Internet expensive or impossible. The pages are either downloaded implicitly Distribution Software Corel Linux Download into the web browser's own cache, as a Distribution Software Corel Linux Download result of prior on-line browsing by the user, or explicitly by the browser Download Doom Game being configured to keep local copies of certain web Distribution Software Corel Linux Download pages, which it keeps updated Distribution Software Corel Linux Download when the browser is in the on-line state, either by checking that Distribution Software Corel Linux Download the local Distribution Software Corel Linux Download copies are up-to-date at regular intervals or Distribution Software Corel Linux Download by Distribution Software Corel Linux Download checking that the local copies are up-to-date whenever the browser is switched to the on-line state. One such web browser capable of being explicitly configured to download pages Distribution Software Corel Linux Download for offline browsing Distribution Software Corel Linux Download is Internet Distribution Software Corel Linux Download Explorer. When pages are added to the "Favourites" list, they can be marked for being made "available for offline browsing". Distribution Software Corel Linux Download 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, Distribution Software Corel Linux Download the level of Distribution Software Corel Linux Download direct and indirect links, the maximum Distribution Software Corel Linux Download amount of local disc space allowed to be consumed, and the schedule on which local copies are checked to see whether Distribution Software Corel Linux Download they are up-to-date, are configurable for each individual "Favourite" entry.
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See also:
Offline browsing known Distribution Software Corel Linux Download as Distribution Software Corel Linux Download "Offline favourites" was removed as a feature in the most recent version of Internet Explorer 7, which only now supports single web page saving, but not browsing or Distribution Software Corel Linux Download storing an entire site offline.[citation needed]
Similarly, off-line storage is computer storage that is not "available for immediate use on demand by the system without human intervention", i.e it is storage that is off-line.
The ideas of "on-line" and "off-line" have been generalized from computing and Distribution Software Corel Linux Download telecommunication into the field of human interpersonal relationships. The distinction between what is considered "on-line" and what is considered Distribution Software Corel Linux Download "off-line" has become a Distribution Software Corel Linux Download subject of study in the field of Distribution Software Corel Linux Download sociology.[7]
The distinction between "on-line" and "off-line" is conventionally seen as the distinction between computer-mediated communication and face-to-face communication (e.g. face time), respectively. "On-line" is virtuality, and "off-line" is reality Distribution Software Corel Linux Download (e.g. real life or meatspace). Distribution Software Corel Linux Download Slater Distribution Software Corel Linux Download states that this distinction is "obviously far too simple". To support his argument that the distinctions in relationships are more complex than a simple "on-line"/"off-line" dichotomy, he observes Distribution Software Corel Linux Download that Distribution Software Corel Linux Download some people draw no distinction between an "on-line" relationship, such as indulging in cybersex, and Distribution Software Corel Linux Download an "off-line" relationship, Distribution Software Corel Linux Download such as being pen-pals. He also argues that even the Distribution Software Corel Linux Download telephone can be Distribution Software Corel Linux Download regarded Distribution Software Corel Linux Download as an "on-line" experience in some Distribution Software Corel Linux Download circumstances, and that Distribution Software Corel Linux Download the blurring Distribution Software Corel Linux Download of the distinctions between the uses of various technologies Distribution Software Corel Linux Download (such as PDA and mobile telephone, television and Internet, and telephone and voice-over-IP) has made Distribution Software Corel Linux Download it "impossible to use the term 'on-line' meaningfully in the sense that was employed by the first generation of Internet research".[7]
Slater asserts that there Distribution Software Corel Linux Download are legal and regulatory pressures to reduce the distinction between "on-line" and Distribution Software Corel Linux Download "off-line", with a "general tendency to assimilate online to offline and erase the distinction", Distribution Software Corel Linux Download stressing, however, that this does Distribution Software Corel Linux Download not mean Distribution Software Corel Linux Download that on-line relationships are being reduced to pre-existing off-line relationships. He conjectures that Distribution Software Corel Linux Download greater legal status may be assigned to on-line relationships (pointing out that contractual relationships, such as business transactions, on-line are already seen as just as "real" as their off-line counterparts), Distribution Software Corel Linux Download although he states it to be hard to imagine courts awarding Distribution Software Corel Linux Download palimony to people who have Distribution Software Corel Linux Download had a purely on-line sexual relationship. He also conjectures that an "on-line"/"off-line" distinction may be Distribution Software Corel Linux Download seen Distribution Software Corel Linux Download by people as "rather quaint and not quite comprehensible" within 10 years.[7]
The Distribution Software Corel Linux Download distinction where "on-line" Distribution Software Corel Linux Download is seen as virtuality and "off-line" Distribution Software Corel Linux Download as reality is sometimes Distribution Software Corel Linux Download inverted, with "on-line" concepts being used Distribution Software Corel Linux Download to define and to explain "off-line" activities, Distribution Software Corel Linux Download rather than (as per the conventions of the desktop metaphor with its desktops, trash cans, folders, and so forth) the other way around. Several cartoons by Distribution Software Corel Linux Download The New Yorker have satirized this. One includes Saint Peter asking for a user Distribution Software Corel Linux Download name and a password before admitting a man into Heaven. Another illustrates "the off-line Distribution Software Corel Linux Download store" Distribution Software Corel Linux Download where "All items 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!". |
