A download manager is a computer program dedicated to the task of downloading (and sometime uploading) possibly unrelated stand-alone D-grey-man Chapter 102-145 Download files from (and D-grey-man Chapter 102-145 Download sometime to) the Internet for storage. This is unlike a World Wide Web browser, which is mainly intended to browse web pages, composed of a multitude of D-grey-man Chapter 102-145 Download smaller files, where error-free moving of files for permanent storage is of secondary importance. (A failed or incomplete web D-grey-man Chapter 102-145 Download page file rarely ruins the page.) The D-grey-man Chapter 102-145 Download typical download manager at a minimum Download Evo2-sync provides means D-grey-man Chapter 102-145 Download to recover from errors without losing the work already completed, and can optionally split the D-grey-man Chapter 102-145 Download file to be downloaded (or uploaded) into 2 or more D-grey-man Chapter 102-145 Download segments, which D-grey-man Chapter 102-145 Download are then moved in parallel, potentially making the D-grey-man Chapter 102-145 Download process faster within the limits of the available bandwidth. (A few servers are known to block moving files D-grey-man Chapter 102-145 Download in parallel segments, D-grey-man Chapter 102-145 Download on the principle that server capacity should be shared equally by all users.) Multi-source is the name given to files D-grey-man Chapter 102-145 Download that are downloaded in parallel.
There are several things that some D-grey-man Chapter 102-145 Download web browsers are not very good at. That's where the download managers 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 D-grey-man Chapter 102-145 Download files from a site automatically according to simple rules (file types, updated files, etc. - D-grey-man Chapter 102-145 Download see also Offline Browser).
Automatic recursive downloads (mirroring).
Scheduled downloads (including, automatic D-grey-man Chapter 102-145 Download hang-up and shutdown).
Searching for mirror sites, and the handling of Free Download Pcanywhere different connections to download the same file more quickly (segmented D-grey-man Chapter 102-145 Download downloading).
Download managers are useful for active Internet D-grey-man Chapter 102-145 Download users. For dial-up users, they can automatically dial the internet service provider at night, D-grey-man Chapter 102-145 Download when rates or tariffs are usually D-grey-man Chapter 102-145 Download lower, download the specified files, and hang-up. They can record which links the user clicks on during the day, and queue these files for later download. D-grey-man Chapter 102-145 Download For D-grey-man Chapter 102-145 Download broadband users, download managers can help D-grey-man Chapter 102-145 Download download very large files by resuming broken downloads, by D-grey-man Chapter 102-145 Download limiting the bandwidth used, so that other internet activities are not affected (slowed) D-grey-man Chapter 102-145 Download and the server D-grey-man Chapter 102-145 Download is D-grey-man Chapter 102-145 Download not overloaded, or by automatically navigating a site and downloading pre-specified content (photo galleries, MP3 D-grey-man Chapter 102-145 Download collections, etc.) this can D-grey-man Chapter 102-145 Download also include automatically downloading whole D-grey-man Chapter 102-145 Download sites and regularly updating them (see Mirroring).
Many download managers support Metalink, an XML file listing mirrors, checksums, and D-grey-man Chapter 102-145 Download other information useful for downloading.
See below for some examples of commonly used download managers. D-grey-man Chapter 102-145 Download Some downloaders are optimized for a certain function. For example, Offline Explorer is designed to D-grey-man Chapter 102-145 Download download entire websites.
Download managers, such as Go!Zilla, D-grey-man Chapter 102-145 Download were among the first adware D-grey-man Chapter 102-145 Download applications displaying a banner ad in the user interface.
Related to download D-grey-man Chapter 102-145 Download managers are two other breeds of Internet programs, file-sharing D-grey-man Chapter 102-145 Download peer-to-peer applications (Kazaa, eMule, BitTorrent, Gnutella) and stream recorders (such as StreamBox VCR).
While download managers are designed to give users greater control over downloads, some downloaders D-grey-man Chapter 102-145 Download are created to give that control to content distributors instead. Some software companies, for example Adobe [1], provide such downloaders for downloading software on their own D-grey-man Chapter 102-145 Download site. D-grey-man Chapter 102-145 Download Presumably this increases reliability and reduces tech support costs to D-grey-man Chapter 102-145 Download them. A D-grey-man Chapter 102-145 Download possible reason is increasing D-grey-man Chapter 102-145 Download the control over redistribution of their D-grey-man Chapter 102-145 Download software (even when the software is Download Server Software Free freeware).In computer technology and telecommunication, on-line and off-line are defined by Federal Standard 1037C. They are states or conditions of a "device or equipment" or of "a functional D-grey-man Chapter 102-145 Download unit". To be considered on-line, a device must be at least D-grey-man Chapter 102-145 Download one of:
"Under the direct control of D-grey-man Chapter 102-145 Download another device"
"Under the direct control of the system with which it D-grey-man Chapter 102-145 Download is D-grey-man Chapter 102-145 Download associated"
"Available D-grey-man Chapter 102-145 Download for immediate use on demand D-grey-man Chapter 102-145 Download by the system without D-grey-man Chapter 102-145 Download human intervention"
"Connected to a system, and is in operation"
"Functional and ready for service"
while D-grey-man Chapter 102-145 Download a device that is off-line is not (e.g. it has "its main power source D-grey-man Chapter 102-145 Download disconnected or turned off", and is "off-power").
One example of a common use of these D-grey-man Chapter 102-145 Download concepts is D-grey-man Chapter 102-145 Download a D-grey-man Chapter 102-145 Download Mail User Agent that can be D-grey-man Chapter 102-145 Download instructed to be in either "on-line" or "off-line" states. One such D-grey-man Chapter 102-145 Download 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 not attempt to make any such D-grey-man Chapter 102-145 Download connections. The "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. The user may have the computer itself on-line, connected to Internet via a cable modem D-grey-man Chapter 102-145 Download or an ADSL connection, but may wish for D-grey-man Chapter 102-145 Download Outlook to be off-line, so that it makes no D-grey-man Chapter 102-145 Download attempt to send D-grey-man Chapter 102-145 Download or to receive messages. Or the computer may 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 D-grey-man Chapter 102-145 Download Fruity Loops Program Download 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 D-grey-man Chapter 102-145 Download making that call every 5 or 10 minutes to D-grey-man Chapter 102-145 Download check for mail.[1]
Another example of the use of these concepts is in the world of D-grey-man Chapter 102-145 Download digital D-grey-man Chapter 102-145 Download audio D-grey-man Chapter 102-145 Download technology. A tape recorder, digital editor, or other D-grey-man Chapter 102-145 Download device that is "on-line" is one whose clock is under the D-grey-man Chapter 102-145 Download control of the clock D-grey-man Chapter 102-145 Download of D-grey-man Chapter 102-145 Download a "synchronization master" device. D-grey-man Chapter 102-145 Download When the sync master commences playback, the "on-line" device automatically synchronizes itself to the master and commences playing from the same point in the recording. Whereas D-grey-man Chapter 102-145 Download a device that is "off-line" uses no external clock reference and relies upon D-grey-man Chapter 102-145 Download 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 devices have D-grey-man Chapter 102-145 Download to locate the playback point and wait for each D-grey-man Chapter 102-145 Download other to be D-grey-man Chapter 102-145 Download in synchronization.[2] (For further D-grey-man Chapter 102-145 Download related discussion, see MIDI timecode, word sync, D-grey-man Chapter 102-145 Download and recording system synchronization.)
A third example of a common use D-grey-man Chapter 102-145 Download of these concepts is D-grey-man Chapter 102-145 Download a D-grey-man Chapter 102-145 Download web browser D-grey-man Chapter 102-145 Download that can be instructed to be in either D-grey-man Chapter 102-145 Download "on-line" or "off-line" states. The browser only attempts to D-grey-man Chapter 102-145 Download fetch pages from servers whilst in the "on-line" state. In the "off-line" state, users can perform offline browsing, where pages can be browsed using local D-grey-man Chapter 102-145 Download copies D-grey-man Chapter 102-145 Download of those pages that have previously D-grey-man Chapter 102-145 Download been downloaded whilst in the "on-line" state. This can be useful when the computer itself is also off-line, with connection to Internet expensive or D-grey-man Chapter 102-145 Download impossible. The pages are either downloaded D-grey-man Chapter 102-145 Download implicitly into the web browser's own D-grey-man Chapter 102-145 Download cache, as a Tortoisesvn Download result of prior on-line browsing by the user, or explicitly by the browser being configured to keep local copies of certain web pages, which it keeps updated D-grey-man Chapter 102-145 Download when the browser is in the on-line state, either by checking that the D-grey-man Chapter 102-145 Download local copies are up-to-date at regular intervals or by checking that the local copies are up-to-date D-grey-man Chapter 102-145 Download whenever the browser is switched to the on-line D-grey-man Chapter 102-145 Download state. One such web D-grey-man Chapter 102-145 Download browser capable D-grey-man Chapter 102-145 Download 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 for being made "available for offline browsing". D-grey-man Chapter 102-145 Download Internet Explorer will download to local copies both the marked page and, optionally, all of the D-grey-man Chapter 102-145 Download pages D-grey-man Chapter 102-145 Download that it links to. In Internet D-grey-man Chapter 102-145 Download 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 D-grey-man Chapter 102-145 Download local copies are checked to see whether they are up-to-date, are configurable for each individual "Favourite" entry.
See D-grey-man Chapter 102-145 Download also:
Offline browsing known as "Offline favourites" was removed as a feature D-grey-man Chapter 102-145 Download in the most D-grey-man Chapter 102-145 Download recent D-grey-man Chapter 102-145 Download Free Wxtoimg Download version of Internet Explorer 7, which only D-grey-man Chapter 102-145 Download now D-grey-man Chapter 102-145 Download 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 D-grey-man Chapter 102-145 Download for immediate use on demand by the system without human intervention", D-grey-man Chapter 102-145 Download i.e it is storage that is off-line.
The 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" D-grey-man Chapter 102-145 Download has become a subject of study in the field D-grey-man Chapter 102-145 Download of sociology.[7]
The distinction between "on-line" and D-grey-man Chapter 102-145 Download "off-line" is conventionally seen as the distinction between computer-mediated communication and face-to-face communication D-grey-man Chapter 102-145 Download (e.g. face time), D-grey-man Chapter 102-145 Download respectively. "On-line" is virtuality, and "off-line" is reality (e.g. real life or meatspace). Slater D-grey-man Chapter 102-145 Download states that this distinction is "obviously far too simple". To support his argument that the D-grey-man Chapter 102-145 Download distinctions in relationships are more D-grey-man Chapter 102-145 Download complex than D-grey-man Chapter 102-145 Download a simple "on-line"/"off-line" D-grey-man Chapter 102-145 Download dichotomy, he observes that some people draw no distinction between an "on-line" relationship, such as indulging in cybersex, and an "off-line" relationship, D-grey-man Chapter 102-145 Download such as being pen-pals. He also argues D-grey-man Chapter 102-145 Download that D-grey-man Chapter 102-145 Download even the telephone can be regarded as an "on-line" experience in D-grey-man Chapter 102-145 Download some circumstances, and that the blurring of the distinctions between the uses of D-grey-man Chapter 102-145 Download various technologies (such as PDA and mobile telephone, television and Internet, and telephone and D-grey-man Chapter 102-145 Download 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 research".[7]
Slater asserts that there D-grey-man Chapter 102-145 Download are legal and regulatory pressures to reduce the distinction between "on-line" and "off-line", with a D-grey-man Chapter 102-145 Download "general tendency to assimilate online to offline and erase the distinction", stressing, however, that this does not mean that on-line relationships are being reduced to pre-existing off-line relationships. He conjectures that greater legal status may be assigned to on-line relationships (pointing out that contractual relationships, such as Download Hawthorn Font business transactions, on-line are already seen as just as "real" as D-grey-man Chapter 102-145 Download their off-line counterparts), although he states it to be hard to imagine courts awarding palimony to people who have had a purely on-line sexual relationship. He also conjectures that 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" D-grey-man Chapter 102-145 Download is seen as virtuality and "off-line" as reality is sometimes inverted, with "on-line" concepts being used to D-grey-man Chapter 102-145 Download define and to explain "off-line" activities, rather than (as per the conventions of the D-grey-man Chapter 102-145 Download desktop metaphor with its desktops, trash cans, folders, and so forth) the other way around. Several cartoons by The New Yorker have satirized this. One includes Saint Peter asking for a user name and a password before admitting a man into Heaven. Another D-grey-man Chapter 102-145 Download illustrates "the off-line store" D-grey-man Chapter 102-145 Download where "All items are actual size!", where shoppers may "Take it D-grey-man Chapter 102-145 Download home as soon as you pay for it!", and where D-grey-man Chapter 102-145 Download "Merchandise may be handled prior to purchase!". |
