So many users of computer and mobile systems are often faced with the question: "What is an application?" Not everyone knows what it is. The fact is that sometimes, having removed a shortcut from the main screen of a mobile gadget or from the desktop of a computer or laptop, not to mention mobile devices, many simply do not know how to launch the program again.
What is an app: general concepts
In general terms, we can say that an application is not a single file, but sometimes a collection of several files combined into one software package. The application itself, from the point of view of computer technology, is an executable file that, referring to, say, related dynamic libraries, databases, or something else, launches the application as such, loading the main interface of the program and the modules necessary for it to a certain device. correct operation.
If you take computer systems, such files, as a rule, have the extension.exe (Executive File - an executable file). In the past, on systems like DOS, you could find executable files like.bat, driver installation files.inf, etc.
It is believed that the usual "exe" file in the form of a separate application is extremely rare. It must be attached to various configuration files or databases, to which it refers during the launch of a particular process. Even in portable (Portable) versions of programs in most cases there are accompanying components.
Installing an application for a computer or mobile device is usually easy. Computer systems usually have an "Installation Wizard" (Install Shield, Install Wizard, etc.).
You just need to follow his instructions, and sometimes exclude some additional components for installation, which are offered by free programs. Usually these are additional panels that are integrated into Internet browsers, search engines or software products that require promotion on the market.
In terms of mobile operating systems such as Android, iOS, BlackBerry and many others, the installation process is fundamentally hidden from the user's eyes. He observes only a descriptive process: they say, such and such an application is currently being downloaded orinstalled.
Note that in this case (unlike computer systems with an indication of the installation location), the installation takes place in the location specified by the mobile operating system itself. So it is almost impossible for an ordinary user to track exactly where the new program will be installed.
VKontakte application: what is it?
Probably, every registered user in one of the most popular social networks VKontakte would certainly like to have permanent access to their data, contacts, correspondence, listening to music, watching videos and God knows what else. For this, client programs for computer systems, applications for iPhone and iPad, for Android systems, etc., etc. have been created. As a rule, they all have the same or very similar interface.
It is especially worth noting that the general package only includes communication on a social network, viewing photos, exchanging links or messages, publishing posts and some other things.
Based on the fact that the standard package is not complete, specialized applets are now being released for the VKontakte social network, for example, for downloading music (you won’t be able to save your favorite track in the usual way). The same goes for videos.
In addition, depending on the version of the full package, it may also include a lot of various add-ons. What are free modules like "Catch VKontakte" for comfortable listening and downloading multimedia, VKontakte DJ for creating and managingsound multisessions, VKontakte Unlock (a tool for unlocking an account), "VKontakte Agent", which allows you to communicate without opening a page in an Internet browser, VKontakte Online (a rather specific browser, as they say, "sharpened" specifically for a social network), VKAudioSaver for downloading music or MuzVK to search and download your favorite tracks with public or private access.
As it is already clear, this list can be replenished again and again. Fortunately, today there are enough enthusiasts who create applications for working in this popular network. What is most interesting, many do not climb into the wilds of programming, but use the universal Java platform. Running an application of this type is possible even on devices without an officially specified operating system (although it is still present in one form or another in the same ordinary mobile phone).
Possible errors when running on a computer
Now we have to add some tar to the barrel of honey. Most often, an error when starting an application on a computer can come down to several main aspects. First of all, this is due to the fact that the program or applet itself is simply incompatible with the "OS". This mainly concerns Win32 applications in OS with 64-bit architecture.
Although 32-bit systems are supported, most of them are considered obsolete. Exactly the same situation is observed when trying to run a 64-bit application on Win32 systems.
Compatibility with mobile operating systems
As for mobile gadgets based on iOS, Android or something else, here very often the problem comes down only to the fact that the current version of the operating system or its update simply does not match the parameters of the application itself. As a rule, to solve such a situation, it is worth looking for exactly the version of the program that is designed for a specific OS. A simple example: if the application "VKontakte", present, say, on the Play Market, is designed to be installed only on Android 4.4, on a "two" such as version 2.3, you can not even try to install it (it still won't work).
The same parallel can be drawn with mobile systems (more precisely, with smartphone modifications) from Apple Corporation.
The developers and specialists of this company take system requirements in the field of installing applications, applets and programs much more seriously than anyone else. Due to this, by the way, an unprecedentedly high rating of their devices is maintained (both stationary computer and mobile). In this case, applications for iPhone of any generation are no exception.
Features of VKontakte applications
If we consider the features of applets of this type, to begin with, each user who is going to download this or that software product from the Internet should take care of understanding what an application is in general. After all, today (and this is no secret to anyone) any computer (evena friend’s laptop or smartphone) can become a “source of infection”. By launching a link in the same VKontakte network, you can easily catch a virus or malicious code. Unfortunately, according to statistics, it is this network that contains the largest number of online viruses that can spontaneously copy and spread between computer terminals or mobile devices.
So, with the answer to the question of what an application is, we have already sorted it out a bit. In principle, if we consider specific programs and add-ons like "VKontakte" with a common name, it is worth noting that today you can find a lot of software products themselves, as they say, for all occasions, even the most unforeseen ones. Another thing is how to treat the security of your own computer or mobile device. Agree, no one wants to grab a virus that will lead the entire system to collapse. Here you definitely need to be very careful, and before downloading content, check files, folders, archives or the same links with an antivirus for potential threats.