A download manager is a computer program dedicated to the task of downloading (and Safeguard Easy Download sometime uploading) possibly unrelated Safeguard Easy Download stand-alone files from (and sometime to) the Internet for storage. This is unlike a Safeguard Easy Download World Wide Web Safeguard Easy Download browser, which is mainly intended to browse web pages, composed of a Safeguard Easy Download multitude of smaller files, where error-free moving of files for permanent storage is of Safeguard Easy Download secondary importance. (A failed or Download Current Movies Free incomplete Safeguard Easy Download web page file Safeguard Easy Download rarely ruins the page.) The Safeguard Easy Download typical download manager Safeguard Easy Download at a Safeguard Easy Download minimum provides means to recover from errors without losing the work already completed, and can optionally split the file to be downloaded (or uploaded) into 2 or more segments, which are then moved in parallel, potentially making the process faster within the limits Safeguard Easy Download of the available bandwidth. (A few servers are known to block moving files Safeguard Easy Download in Safeguard Easy Download parallel Safeguard Easy Download segments, on the principle that server capacity should be shared equally by all users.) Multi-source is the name given to files that are downloaded in parallel.
There are Safeguard Easy Download several things that some Safeguard Easy Download web browsers are not very good at. That's Safeguard Easy Download where the download managers enter Safeguard Easy Download 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 files, etc. - see also Offline Browser).
Automatic recursive downloads (mirroring).
Scheduled downloads (including, automatic hang-up and shutdown).
Searching Safeguard Easy Download for mirror sites, and the handling of different connections to download the same file more quickly (segmented downloading).
Download managers are useful Safeguard Easy Download for active Internet users. For dial-up users, they can automatically dial the internet service Safeguard Easy Download provider at night, when rates or tariffs are usually lower, download the specified Safeguard Easy Download files, and hang-up. They can record which links the user clicks on during the day, and queue these files for later download. For broadband Safeguard Easy Download users, download Safeguard Easy Download managers can help download very large files by Safeguard Easy Download resuming broken downloads, by limiting the bandwidth used, so that other internet activities are not affected Safeguard Easy Download (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 automatically downloading whole sites and regularly updating Fill In Puzzle Download them (see Mirroring).
Many download managers support Metalink, an XML file listing mirrors, Safeguard Easy Download checksums, and other information useful Safeguard Easy Download for downloading.
See below for some examples of Safeguard Easy Download commonly used download managers. Some downloaders are optimized for a certain function. For example, Offline Explorer is designed to download entire Safeguard Easy Download websites.
Download managers, Safeguard Easy Download such as Go!Zilla, were among the first adware applications displaying Safeguard Easy Download a banner ad in the user interface.
Related Safeguard Easy Download to download managers are two other breeds of Internet programs, file-sharing peer-to-peer applications (Kazaa, eMule, Safeguard Easy Download BitTorrent, Gnutella) and Safeguard Easy Download stream recorders (such as StreamBox VCR).
While download Safeguard Easy Download managers are designed to give users greater control over Safeguard Easy Download downloads, some downloaders are created to give that control to content Safeguard Easy Download distributors instead. Some software companies, for example Adobe [1], Safeguard Easy Download provide such downloaders for downloading software on their own site. Presumably this Safeguard Easy Download increases reliability and reduces tech support costs to them. Safeguard Easy Download A possible reason is increasing the control over redistribution of their software (even when the software is freeware).In computer technology and telecommunication, on-line and off-line are defined by Federal Standard Safeguard Easy Download 1037C. They are states or conditions of Safeguard Easy Download a "device or equipment" or of "a functional unit". To be considered on-line, a device must be at least one of:
"Under Safeguard Easy Download the direct control Safeguard Easy Download of another device"
"Under the direct control of the system with which it is associated"
"Available for immediate use on demand by the system without human intervention"
"Connected to Safeguard Easy Download a system, and is in operation"
"Functional and Safeguard Easy Download ready for service"
while a device that is off-line is not (e.g. it has "its main power source disconnected or turned Safeguard Easy Download off", and is "off-power").
One example of a common use of these concepts is a Mail User Safeguard Easy Download Agent that can be instructed to be in either "on-line" or "off-line" states. One such MUA is Microsoft Outlook. When it is "on-line" it will Safeguard Easy Download attempt to connect to mail servers (to Safeguard Easy Download check for new mail at regular intervals, for example), and when it Safeguard Easy Download is "off-line" it will not attempt to make Safeguard Easy Download any Safeguard Easy Download such connections. The Safeguard Easy Download "on-line" or "off-line" state of the MUA does not necessarily reflect the connection status between the computer on which it is running and Internet. War Craft Download 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 Safeguard Easy Download attempt to send or to receive messages. Or the computer may be configured to employ a dial-up connection on demand (whenever an application such Safeguard Easy Download as Outlook Safeguard Easy Download attempts Safeguard Easy Download to make connection to a server), Safeguard Easy Download but the connection may be an expensive telephone call from Safeguard Easy Download the particular location in which the computer currently happens to be Safeguard Easy Download (such as a hotel Safeguard Easy Download room) and the user may not wish Safeguard Easy Download Outlook to trigger making that call every Safeguard Easy Download 5 or 10 minutes to Safeguard Easy Download check for mail.[1]
Another example of the use of these concepts is in the world of digital audio technology. A tape recorder, digital editor, or other Safeguard Easy Download device that is "on-line" is one whose clock Scarface Game Pc Download Cd is under Download Java For Internet Explorer the control of the clock of a "synchronization master" Safeguard Easy Download device. When Safeguard Easy Download the sync master commences playback, the "on-line" device Safeguard Easy Download automatically synchronizes itself to the master and commences playing from the Safeguard Easy Download same point in the recording. Whereas a device that is "off-line" uses no external clock reference and relies upon its own internal clock. 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 off-line, because if the device is played back on-line all synchronized Safeguard Easy Download devices have to locate the playback point and wait for each Safeguard Easy Download other to be in Safeguard Easy Download synchronization.[2] (For further related discussion, see MIDI Safeguard Easy Download timecode, word Safeguard Easy Download sync, and recording system synchronization.)
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A Safeguard Easy Download third example of a common use of these concepts is a web browser that can be instructed to be in either "on-line" or "off-line" states. The browser only attempts to fetch pages Safeguard Easy Download from servers whilst in the "on-line" state. In the "off-line" state, users can Safeguard Easy Download perform offline browsing, where pages can be Safeguard Easy Download browsed using local copies of those pages that have previously been downloaded whilst Safeguard Easy Download in the "on-line" state. Safeguard Easy Download This can be useful when the computer itself is also off-line, with connection to Internet expensive or impossible. The pages are either downloaded implicitly into the web browser's own cache, Safeguard Easy Download as a result of prior on-line browsing by the user, or explicitly by the Safeguard Easy Download browser being Safeguard Easy Download 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 Safeguard Easy Download intervals or by checking that the local copies are Safeguard Easy Download up-to-date whenever the browser Safeguard Easy Download is Safeguard Easy Download switched Safeguard Easy Download to the on-line state. One such web browser capable of being explicitly configured Safeguard Easy Download to download pages for offline browsing is Internet Explorer. Safeguard Easy Download When pages are Safeguard Easy Download added to the "Favourites" list, they can be marked for Safeguard Easy Download being made "available for offline browsing". Internet Explorer will download to local copies Safeguard Easy Download both the marked page and, optionally, all of the pages Safeguard Easy Download that it links to. In Internet Explorer version 6, Safeguard Easy Download the level of direct and indirect links, the maximum amount of local disc Safeguard Easy Download 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 "Favourite" entry.
See also:
Offline browsing known as "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 storing an entire site offline.[citation needed]
Similarly, off-line storage is computer storage that is not "available for immediate Safeguard Easy Download use Safeguard Easy Download on demand by the system without human intervention", Safeguard Easy Download i.e Safeguard Easy Download it is storage that is off-line.
The ideas of "on-line" Safeguard Easy Download and "off-line" have been generalized from computing and Safeguard Easy Download telecommunication into the field of human Safeguard Easy Download interpersonal relationships. The distinction between what is considered "on-line" and what is considered "off-line" has become a subject of study in the field of Safeguard Easy 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 (e.g. real life Safeguard Easy Download or meatspace). Slater 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 that Safeguard Easy Download some people draw no distinction between Safeguard Easy Download an "on-line" relationship, Safeguard Easy Download such as Safeguard Easy Download indulging in cybersex, and an "off-line" relationship, such Safeguard Easy Download as being pen-pals. He also argues that even the telephone can be regarded as an "on-line" experience in some circumstances, and that the blurring of the distinctions Safeguard Easy Download between the uses of various technologies (such as PDA and mobile telephone, television and Internet, Safeguard Easy Download and telephone and voice-over-IP) has made it "impossible Safeguard Easy Download to Safeguard Easy Download use the term 'on-line' meaningfully in the sense that was employed by the first generation of Internet research".[7]
Slater asserts that there are legal and regulatory pressures to reduce the distinction between "on-line" and Safeguard Easy Download "off-line", Safeguard Easy Download with a "general tendency to assimilate Safeguard Easy Download online to offline and erase the distinction", stressing, however, that this does not mean that on-line relationships are being reduced to Safeguard Easy Download pre-existing off-line relationships. Safeguard Easy Download Vegas Pro Free Download He conjectures that Safeguard Easy Download greater legal status may be assigned to on-line Safeguard Easy Download relationships Safeguard Easy Download (pointing out that contractual relationships, Safeguard Easy Download such Safeguard Easy Download as business transactions, on-line are already Safeguard Easy Download seen as just as "real" as their off-line counterparts), although he states it to be hard to Safeguard Easy Download imagine courts awarding palimony to people Safeguard Easy Download who have had a Safeguard Easy Download purely on-line sexual relationship. Safeguard Easy Download He also conjectures that Safeguard Easy Download an "on-line"/"off-line" distinction may be seen by people as "rather quaint and not quite comprehensible" within 10 years.[7]
The distinction where "on-line" is seen as virtuality and Safeguard Easy Download "off-line" as reality is sometimes inverted, with "on-line" concepts being used Safeguard Easy Download to define and Download Classical Music Free to explain "off-line" activities, rather than Safeguard Easy Download (as Safeguard Easy Download per the conventions of the desktop metaphor with its desktops, trash cans, folders, Princess Elfina Episode Download and Safeguard Easy Download so forth) the other way around. Several cartoons by Safeguard Easy Download The New Yorker have satirized this. One includes Saint Peter asking for a user name and a password before admitting a man Ephemeris Toolbox Download into Heaven. Another illustrates "the Safeguard Easy Download off-line store" where "All items are actual Grandtheftauto Download size!", where shoppers may "Take it home as soon as you pay for it!", and where "Merchandise may be handled prior to purchase!". |
