A Nod 32-free Download download manager is a computer program dedicated to the task of downloading Nod 32-free Download (and sometime uploading) possibly unrelated stand-alone files from (and sometime Nod 32-free Download to) the Internet for storage. This is unlike a World Wide Web Nod 32-free Download browser, which is mainly intended to browse web pages, composed of a multitude of smaller Nod 32-free Download files, where Nod 32-free Download error-free moving Nod 32-free Download of files Nod 32-free Download for permanent storage is Nod 32-free Download of secondary importance. (A failed or incomplete web Nod 32-free Download page Nod 32-free Download 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 Nod 32-free Download can optionally split the file to be downloaded (or uploaded) into 2 or more Nod 32-free Download segments, which are then moved in parallel, potentially making the process faster within Nod 32-free Download the limits of the available bandwidth. (A few servers are known to block moving files in Nod 32-free Download parallel Nod 32-free Download segments, on the principle that server capacity should be shared equally Nod 32-free Download by all users.) Nod 32-free Download 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 where the download managers Nod 32-free 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 Nod 32-free Download files from a site automatically according to simple rules (file types, updated files, etc. - see also Offline Browser).
Automatic recursive downloads (mirroring).
Scheduled downloads (including, automatic hang-up and shutdown).
Searching for mirror Nod 32-free Download 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 Nod 32-free Download or Nod 32-free Download tariffs are Nod 32-free Download usually lower, download the specified files, and hang-up. They can Nod 32-free Download record which links the Nod 32-free Download user clicks on Bosanske Muzke Download during the day, and queue these files for later download. For broadband users, download managers can Nod 32-free Download help download Nod 32-free Download very large files by resuming broken downloads, by limiting the bandwidth used, so that other internet activities are Nod 32-free Download not Nod 32-free Download affected (slowed) and the server is not overloaded, or by automatically navigating a site and downloading pre-specified content (photo galleries, MP3 collections, etc.) this can also include Nod 32-free Download automatically downloading whole sites and regularly updating them (see Mirroring).
Many download managers support Metalink, an XML file listing mirrors, checksums, and other information useful for downloading.
See below for some examples of commonly used download Nod 32-free Download managers. Some downloaders are optimized Nod 32-free Download for a certain function. Nod 32-free Download For example, Offline Explorer is designed to download entire websites.
Download managers, such as Go!Zilla, were among the first Nod 32-free Download adware applications displaying a banner ad in the user interface.
Related to download managers are two other breeds of Internet programs, Nod 32-free Download file-sharing peer-to-peer applications (Kazaa, eMule, BitTorrent, Gnutella) and Nod 32-free Download stream recorders (such as StreamBox VCR).
While download managers are Nod 32-free Download designed to give users greater control over Nod 32-free Download downloads, some downloaders are created to give that control to content distributors instead. Some software companies, for example Adobe [1], provide such downloaders for downloading software Nod 32-free Download on their own site. Presumably this increases reliability and reduces tech support costs Nod 32-free Download to them. A possible reason is increasing the control over redistribution of their software (even when the Nod 32-free Download software is freeware).In computer Nod 32-free Download technology and telecommunication, on-line and Nod 32-free Download off-line are defined by Federal Standard 1037C. They are states or conditions of a "device or Nod 32-free Download equipment" or of "a functional unit". To be considered on-line, a device must be at least one of:
"Under the 25th Wedding Songs Free Download direct control of another device"
"Under the direct control of the system with which it is associated"
"Available Nod 32-free Download for immediate use on demand by the system without human intervention"
"Connected to a system, and is in operation"
"Functional and ready for Nod 32-free Download service"
while a device that is Nod 32-free Download off-line is not Nod 32-free Download (e.g. it has "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 can be instructed to be in Nod 32-free Download either "on-line" or "off-line" states. One such MUA is Microsoft Outlook. When it is "on-line" it will attempt to connect to mail servers (to check for new mail at regular intervals, for example), and when it is "off-line" it will Nod 32-free Download not Nod 32-free Download attempt to make any such connections. The "on-line" or Nod 32-free Download "off-line" state of the MUA does not necessarily reflect the Nod 32-free Download connection status between the computer on which it is running and 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 to Nod 32-free Download be off-line, Nod 32-free Download so that it makes no attempt to send or to receive messages. Or the computer may be configured to employ a dial-up connection on Nod 32-free Download demand (whenever an application such as Outlook attempts to make connection to a server), Nod 32-free Download but the connection may Nod 32-free Download be an Nod 32-free Download expensive telephone call from the particular location in which the computer currently happens Nod 32-free Download 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 Nod 32-free Download of the use of these concepts is in the world of digital audio technology. A tape recorder, digital editor, or other device that is "on-line" is one whose clock is under the control of the clock of a Nod 32-free Download "synchronization master" device. When the sync master commences playback, the "on-line" device automatically synchronizes Nod 32-free Download itself to the master and commences playing from the Nod 32-free Download same point in the recording. Whereas Nod 32-free Download a Nod 32-free Download device that is "off-line" uses no external clock reference and relies upon its own internal clock. When a Nod 32-free Download large number of devices are connected Nod 32-free Download to a Nod 32-free Download sync master, it is often convenient, if Nod 32-free Download one wants to hear just the output of one single device, to Nod 32-free Download take it off-line, because Nod 32-free Download if the device is Nod 32-free Download played back Nod 32-free Download on-line all synchronized Radio Ga-ga Download devices have to locate the playback point and Nod 32-free Download wait for each other Nod 32-free Download to be Nod 32-free Download in synchronization.[2] (For further related discussion, see MIDI timecode, word sync, and recording system synchronization.)
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A third example of a common use of these concepts is a web browser that can be instructed to be Nod 32-free Download in Nod 32-free Download either "on-line" or "off-line" states. The browser only attempts to fetch pages from Nod 32-free Download servers whilst in the "on-line" state. In the "off-line" state, users can perform offline browsing, where pages can be browsed using local copies of those pages that Nod 32-free Download have previously been downloaded whilst in the "on-line" state. This can be useful when the computer itself is Nod 32-free Download also off-line, with connection Nod 32-free Download to Nod 32-free Download Internet Nod 32-free Download expensive or impossible. The pages are either downloaded implicitly into the web browser's own cache, Nod 32-free Download as a result Aben Free Movie Download To Own of prior on-line browsing by Nod 32-free Download the user, or explicitly 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 state. One such web browser Nod 32-free Download capable of being explicitly configured to download pages Nod 32-free Download for offline browsing is Nod 32-free Download Internet Explorer. When pages are added to Nod 32-free Download the "Favourites" list, they can Nod 32-free Download be marked for being made "available Nod 32-free Download for offline browsing". Internet Explorer will download to Nod 32-free Download local copies both the marked page and, optionally, all of the pages that Nod 32-free Download it links to. In Internet Explorer version 6, the level Nod 32-free Download of direct and indirect links, the maximum amount of local disc space allowed to be consumed, and the Nod 32-free Download schedule on which Nod 32-free Download local copies are checked Nod 32-free Download to see whether Nod 32-free Download they are up-to-date, Nod 32-free Download are configurable for each individual "Favourite" Nod 32-free Download entry.
See also:
Offline browsing known Nod 32-free Download as "Offline favourites" was Nod 32-free Download removed as a feature Nod 32-free Download in the most recent version of Internet Explorer 7, which only now supports single web page saving, but not browsing or Nod 32-free Download storing an entire site offline.[citation needed]
Similarly, off-line storage is Nod 32-free Download 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 Nod 32-free Download ideas of "on-line" and "off-line" have been 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" has become a subject of Nod 32-free Download study in the field of sociology.[7]
The distinction between "on-line" and "off-line" is conventionally seen as the distinction between computer-mediated Nod 32-free Download communication and face-to-face communication (e.g. face time), respectively. Nod 32-free Download "On-line" is virtuality, Nod 32-free Download and "off-line" is reality (e.g. real life or meatspace). Slater states that this distinction is "obviously far too simple". To support his Nod 32-free Download argument that the Nod 32-free Download distinctions in relationships Nod 32-free Download are more complex than a simple "on-line"/"off-line" dichotomy, he observes that some people draw no distinction between an "on-line" relationship, such as indulging in cybersex, and an "off-line" relationship, such as being pen-pals. He also argues that even the telephone can be regarded Nod 32-free Download as an "on-line" experience in some circumstances, and that the blurring of the distinctions between the uses of various Nod 32-free Download technologies (such as PDA and mobile telephone, television and Internet, and telephone and voice-over-IP) has made it "impossible to use the term 'on-line' meaningfully in the sense that was employed by the first generation of Internet Nod 32-free Download research".[7]
Slater asserts that there are legal and regulatory pressures to reduce the distinction between "on-line" and "off-line", with a Nod 32-free Download "general tendency to assimilate online to offline and Nod 32-free Download erase the distinction", stressing, however, that this does not mean that on-line relationships are being reduced to Nod 32-free Download pre-existing off-line relationships. Nod 32-free Download He conjectures that greater legal Nod 32-free Download status may be assigned to on-line relationships (pointing out that contractual relationships, such as Nod 32-free Download business transactions, on-line are already seen as just as Nod 32-free Download "real" as their Nod 32-free Download off-line counterparts), although he states it to be hard to Nod 32-free Download imagine courts awarding palimony to people who Nod 32-free Download have had a purely on-line sexual relationship. He also conjectures that an "on-line"/"off-line" distinction may be seen by Nod 32-free Download people as "rather quaint and not quite comprehensible" within 10 years.[7]
The distinction where "on-line" is seen Nod 32-free Download as virtuality and "off-line" as Nod 32-free Download reality is Nod 32-free Download sometimes Nod 32-free Download inverted, Naxjp Download with "on-line" concepts being used to define and to explain "off-line" activities, rather than (as per the conventions Nod 32-free Download of the desktop metaphor with its desktops, trash Nod 32-free Download cans, folders, and so forth) Nod 32-free Download the other way around. Several cartoons by The New Yorker have satirized this. One includes Saint Peter asking for a user name Nod 32-free Download and a password before Nod 32-free Download admitting a man into Heaven. Another illustrates "the off-line store" where "All items are actual size!", where shoppers may "Take it home as soon as you pay for it!", Download Chakde India and where "Merchandise Nod 32-free Download may be handled prior to purchase!". |
