A download manager is a Download Halflife2 Mod computer program dedicated to the task of downloading (and Download Halflife2 Mod sometime Download Halflife2 Mod uploading) Download Halflife2 Mod possibly unrelated stand-alone Download Halflife2 Mod files from Download Halflife2 Mod (and sometime to) the Internet for storage. This is unlike a World Wide Web browser, which is mainly Download Halflife2 Mod intended to browse web pages, composed Download Halflife2 Mod of a multitude of smaller files, 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 Download Halflife2 Mod typical download manager at a minimum provides means to recover from Download Halflife2 Mod errors without losing the work already completed, and can optionally split Download Halflife2 Mod the file to be downloaded (or uploaded) into Download Halflife2 Mod 2 or more segments, which Download Halflife2 Mod are then moved in parallel, potentially making the Download Halflife2 Mod process Download Halflife2 Mod faster within the limits of the available bandwidth. (A few servers are known to block moving files in parallel 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 several Download Halflife2 Mod things that some web browsers are not very good at. That's where the download managers enter the equation:
Pausing the downloading of Download Tabledancers Best Time large files.
Resuming broken or paused downloads Download Counter Strike Source Maps (especially for very large files).
Downloading files on poor connections.
Downloading Download Halflife2 Mod several Download Halflife2 Mod files from a site automatically according to simple rules (file types, updated Download Halflife2 Mod files, etc. - see also Offline Browser).
Automatic recursive downloads (mirroring).
Scheduled downloads (including, automatic hang-up and shutdown).
Searching Download Halflife2 Mod for mirror sites, and the handling of different connections to download the same file more quickly (segmented downloading).
Download managers are useful Download Halflife2 Mod for active Internet users. Download Halflife2 Mod For dial-up users, they can automatically dial the internet service provider Download Halflife2 Mod at night, when rates or tariffs are usually lower, download the Download Halflife2 Mod specified files, and Download Halflife2 Mod hang-up. They can record which links the user clicks on during the day, and queue these files Download Halflife2 Mod for later download. For broadband users, download Download Halflife2 Mod managers can help download very large files by resuming broken downloads, by limiting the bandwidth used, so that Download Halflife2 Mod other internet activities Download Halflife2 Mod are not affected Download Halflife2 Mod (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 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 managers. Some downloaders are optimized for a certain function. For example, Offline Explorer is designed Download Halflife2 Mod to download entire websites.
Download managers, such as Go!Zilla, were among Download Halflife2 Mod the first adware applications displaying a banner ad in Download Halflife2 Mod the user interface.
Related to download managers are two other breeds of Internet programs, file-sharing peer-to-peer applications (Kazaa, eMule, BitTorrent, Gnutella) and stream Download Halflife2 Mod recorders Download Halflife2 Mod (such as StreamBox VCR).
While download Download Halflife2 Mod managers are designed to give users greater control over downloads, some downloaders are created to give Download Halflife2 Mod that control to content distributors instead. Some software companies, for Download Halflife2 Mod example Adobe [1], provide such downloaders for downloading software on their Download Dragon Speak Trial own Download Halflife2 Mod site. Presumably this increases reliability Download Halflife2 Mod and reduces tech support costs to them. A possible reason is increasing the control over redistribution of their software (even Download Halflife2 Mod when the software is freeware).In computer technology and telecommunication, on-line and off-line are defined by Federal Standard 1037C. They Download Halflife2 Mod are states or conditions of a "device or equipment" or of Download Halflife2 Mod "a functional Download Halflife2 Mod unit". Download Halflife2 Mod To be considered on-line, a device must be at Download Halflife2 Mod least one of:
"Under the direct Download Halflife2 Mod control of another device"
"Under the direct control of the system with Download Halflife2 Mod which it is associated"
"Available for immediate use on demand by the system without human intervention"
"Connected Download Halflife2 Mod to a system, and is in operation"
"Functional and ready for service"
while a device that is Download Halflife2 Mod off-line is not (e.g. Download Halflife2 Mod it Download Free Computer Books has "its main power source disconnected Download Halflife2 Mod or turned off", and is "off-power").
One example of a common use of these concepts is a Mail User Download Halflife2 Mod Agent Download Halflife2 Mod 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 Download Halflife2 Mod attempt Download Halflife2 Mod to connect to mail servers (to check for new mail at regular Download Halflife2 Mod intervals, for example), and when it is "off-line" Download Halflife2 Mod it Download Halflife2 Mod will not attempt to make any such connections. The "on-line" or "off-line" state of the MUA does not necessarily reflect the connection status Download Halflife2 Mod 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 Download Halflife2 Mod modem or an ADSL connection, Download Halflife2 Mod but may wish for Outlook to be off-line, so that it Download Halflife2 Mod makes no attempt to send or Download Halflife2 Mod to receive messages. Or the computer may Motorola V265 Usb Software Download be configured to employ a dial-up connection on demand (whenever an application such as Outlook attempts to make connection to a server), but the connection may Download Halflife2 Mod be an Download Halflife2 Mod 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 is in the world of digital audio Download Halflife2 Mod technology. A Download Halflife2 Mod tape recorder, digital editor, or other device that Download Halflife2 Mod is "on-line" is one whose clock is under the control of the clock of a "synchronization master" Download Halflife2 Mod device. When the sync master commences Download Halflife2 Mod playback, the Download Halflife2 Mod "on-line" device Download Halflife2 Mod automatically synchronizes itself to Download Ghex the master and commences playing from Download Halflife2 Mod the 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 Download Vb6 Code large number of devices are connected to a sync Download Halflife2 Mod 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 devices have to locate the playback point and Download Halflife2 Mod wait for each other to be in synchronization.[2] (For further Download Halflife2 Mod related discussion, see MIDI timecode, word sync, and recording system synchronization.)
A third example of a common use of Java Api Download these concepts is a web browser that can be Download Halflife2 Mod instructed to be in either "on-line" or "off-line" states. Download Halflife2 Mod The browser only attempts to Download Halflife2 Mod fetch pages from servers whilst in the "on-line" state. In Download Halflife2 Mod the "off-line" state, users can perform offline browsing, where pages can be browsed using local copies of those pages that Download Halflife2 Mod have previously been downloaded whilst in the "on-line" state. This Download Halflife2 Mod can be Download Halflife2 Mod useful when the computer itself Download Halflife2 Mod is also off-line, with connection Internet Explorer Version Download to Internet expensive or impossible. The pages are either downloaded implicitly into the web browser's own cache, as a result of prior on-line browsing by Download Halflife2 Mod the user, or explicitly by the browser being configured to keep local copies of Download Halflife2 Mod certain web pages, which it keeps updated when the browser is Download Halflife2 Mod in the Download Halflife2 Mod on-line state, either by checking that the local copies are up-to-date at regular intervals or by checking that Download Halflife2 Mod 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 Download Halflife2 Mod for offline browsing is Internet Explorer. When pages are added to the "Favourites" list, they can be marked for being made "available for offline browsing". Internet Explorer will download to Download Halflife2 Mod local copies Download Saafir The Hitlist Album Free both the marked page and, optionally, all of the pages that it links to. In Internet Explorer version 6, the level of direct Download Halflife2 Mod 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 "Favourite" entry.
See also:
Offline browsing known as "Offline favourites" was removed as a feature in the most Download Halflife2 Mod recent version of Download Halflife2 Mod Internet Explorer 7, which only now supports single web page saving, but not browsing or storing an entire Download Halflife2 Mod site offline.[citation needed]
Similarly, off-line storage is computer storage that is not "available for Download Halflife2 Mod immediate use on demand Download Halflife2 Mod by the Download Halflife2 Mod system without human intervention", i.e it is storage Download Halflife2 Mod that is off-line.
The ideas of "on-line" and "off-line" Download Halflife2 Mod 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 Download Halflife2 Mod become a subject of study in the field of sociology.[7]
The distinction between Download Halflife2 Mod "on-line" and "off-line" is conventionally seen as the distinction between computer-mediated communication and face-to-face communication (e.g. Download Halflife2 Mod face Download Halflife2 Mod time), respectively. "On-line" is virtuality, and "off-line" is reality (e.g. real life or meatspace). Slater states that this distinction Download Halflife2 Mod is Download Halflife2 Mod "obviously far Download Halflife2 Mod too simple". To Download Halflife2 Mod support his argument that the distinctions in relationships are more complex than a Download Halflife2 Mod 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. Download Halflife2 Mod He also argues that Download Halflife2 Mod even the telephone can be regarded as an "on-line" Download Halflife2 Mod experience in some circumstances, and that the blurring of the distinctions Download Halflife2 Mod between the uses of various technologies (such as PDA Download Halflife2 Mod and mobile telephone, television and Internet, and telephone and voice-over-IP) has made it "impossible to use the term 'on-line' Download Halflife2 Mod meaningfully in the sense that was employed by the first generation of Internet research".[7]
Slater Download Halflife2 Mod asserts Download Halflife2 Mod that there are legal and regulatory pressures to Download Halflife2 Mod reduce Download Halflife2 Mod the distinction between "on-line" and "off-line", with a "general tendency to Download Halflife2 Mod assimilate online to offline and erase the distinction", stressing, Download Halflife2 Mod however, that this does not mean Download Halflife2 Mod that on-line relationships Download Halflife2 Mod are Download Halflife2 Mod being reduced to pre-existing off-line relationships. He conjectures that greater legal status may be Download Halflife2 Mod assigned to on-line relationships (pointing out that contractual relationships, such as business transactions, on-line are already seen as Download Halflife2 Mod just as "real" as their off-line counterparts), Download Halflife2 Mod although he states it to be hard Download Halflife2 Mod to imagine courts awarding palimony to people who have had Download Halflife2 Mod a purely on-line sexual relationship. He Download Halflife2 Mod also conjectures that an Download Halflife2 Mod "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 Download Halflife2 Mod "off-line" as reality is sometimes inverted, with "on-line" concepts being Download Halflife2 Mod used to define Adobe Cs3 Free Download and to explain "off-line" activities, 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 The New Yorker have satirized Download Halflife2 Mod this. One includes Saint Peter asking for a user Download Halflife2 Mod name and Download Halflife2 Mod a password before admitting a man into Heaven. Another illustrates "the off-line store" where "All items are actual size!", where shoppers may "Take it home Download Halflife2 Mod as soon as you Download Halflife2 Mod pay for it!", Download Halflife2 Mod and where "Merchandise may be handled prior to purchase!". |
