Desktop environment (Italiano)

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Desktop environments provide a complete graphical user interface (GUI) for a system by bundling together a variety of X clients written using a common widget toolkit and set of libraries.

X Window System

The X Window System provides the foundation for a graphical user interface. Prior to installing a desktop environment, a functional X server installation is required. See Xorg for detailed information.

X provides the basic framework, or primitives, for building such GUI environments: drawing and moving windows on the screen and interacting with a mouse and keyboard. X does not mandate the user interface — individual client programs known as window managers handle this. As such, the visual styling of X-based environments varies greatly; different programs may present radically different interfaces. X is built as an additional (application) abstraction layer on top of the operating system kernel.

The user is free to configure their GUI environment in any number of ways. Desktop environments simply provide a complete and convenient means of accomplishing this task.

Desktop environments

A desktop environment bundles together a variety of X clients to provide common graphical user interface elements such as icons, windows, toolbars, wallpapers, and desktop widgets. Additionally, most desktop environments include a set of integrated applications and utilities.

Note that users are free to mix-and-match applications from multiple desktop environments. For example, a KDE user may install and run GNOME applications such as the Epiphany web browser, should he/she prefer it over KDE's Konqueror web browser. One drawback of this approach is that many applications provided by desktop environment projects rely heavily upon their DE's respective underlying libraries. As a result, installing applications from a range of desktop environments will require installation of a larger number of dependencies. Users seeking to conserve disk space and avoid software bloat often avoid such mixed environments, or look into lightweight alternatives.

Furthermore, DE-provided applications tend to integrate better with their native environments. Superficially, mixing environments with different widget toolkits will result in visual discrepancies (that is, interfaces will use different icons and widget styles). In terms of user experience, mixed environments may not behave similarly (e.g. single-clicking versus double-clicking icons; drag-and-drop functionality) potentially causing confusion or unexpected behavior.

List of desktop environments

E17
The Enlightenment desktop shell provides an efficient yet breathtaking window manager based on the Enlightenment Foundation Libraries along with other essential desktop components like a file manager, desktop icons and widgets. It boasts a unprecedented level of theme-ability while still being capable of performing on older hardware or embedded devices.
GNOME
Il GNU Network Object Model Environment. Il progetto GNOME fornisce un intuitivo e completo ambiente desktop, e una piattaforma di sviluppo per la creazione di applicazioni da integrare nel resto del desktop. GNOME è gratuito, usabile, accessibile, internazionale, semplice per gli sviluppatori, organizzato, sostenuto ed è una comunità.
KDE SC
Il KDE Software Compilation è una evoluzione nata dalla storia del progetto KDE. Nella sua creazione, KDE è nato per realizzare un bellissimo, funzionale e gratuito ambiente di elaborazione desktop per Linux e sistemi operativi analoghi. A quel tempo, questi sistemi mancavano di un ambiente grafico utente che poteva rivaleggiare con le offerte dei grandi venditori che operano nei sistemi proprietari. KDE è stato creato per colmare questa lacuna.

KDE Software Compilation è l'insieme di librerie, aree di lavoro e applicazioni prodotte da KDE, che condividono questo patrimonio comune, e continuano a utilizzare un ciclo di rilascio sincronizzato. In questo contesto un software può muoversi, a seconda delle esigenze particolari dei collaboratori che vi stanno lavorando, dentro e fuori da questa definizione semi-formale di Compilation, con deroghe che garantiscano che rimanga la compatibilità binaria, a livello di librerie, nel corso di qualsiasi major release della compilation stessa. KDE software consists of a large number of individual applications and a desktop workspace as a shell to run these applications. You can run KDE applications just fine on any desktop environment. KDE applications are built to integrate well with your system's components. By using also KDE workspace, you get even better integration of your applications with the working environment while lowering system resource needs.

LXDE
Il Lightweight X11 Desktop Environment è un ambiente desktop estremamente veloce , performante e con un buon risparmio energetico. Gestito da una comunità internazionale di sviluppatori, si presenta con una bella interfaccia, supporto multi-lingua, tasti di scelta rapida standard e funzionalità aggiuntive come la navigazione a schede dei file. LXDE utilizza meno CPU e RAM di altri ambienti desktop. E 'progettato appositamente per i computer cloud con basse specifiche hardware, come i netbook, i dispositivi MID (Mobile ad esempio) o computer datati.
ROX
ROX is a fast, user friendly desktop which makes extensive use of drag-and-drop. The interface revolves around the file manager, or filer, following the traditional Unix view that 'everything is a file' rather than trying to hide the filesystem beneath start menus, wizards, or druids. The aim is to make a system that is well designed and clearly presented. The ROX style favors using several small programs together instead of creating all-in-one mega-applications.
Sugar
The Sugar Learning Platform is a computer environment composed of Activities designed to help children from 5 to 12 years of age learn together through rich-media expression. Sugar is the core component of a worldwide effort to provide every child with the opportunity for a quality education — it is currently used by nearly one-million children worldwide speaking 25 languages in over 40 countries. Sugar provides the means to help people lead fulfilling lives through access to a quality education that is currently missed by so many.
Xfce
Xfce embodies the traditional UNIX philosophy of modularity and re-usability. It consists of a number of components that provide the full functionality one can expect of a modern desktop environment. They are packaged separately and you can pick among the available packages to create the optimal personal working environment.

Comparison of desktop environments

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Reason: please use the first argument of the template to provide a brief explanation. (Discuss in Talk:Desktop environment (Italiano)#)

This section attempts to draw a comparison between popular desktop environments. Note that first-hand experience is the only effective way to truly evaluate whether a desktop environment best suits your needs.

Template:Wikipedia

Overview of desktop environments
Desktop environment Widget toolkit Window manager Terminal emulator File manager Text editor Web browser
E17 Elementary Enlightenment Eterm EFM / Entropy / Evidence N/A Eve
GNOME GTK+ Metacity GNOME Terminal Nautilus gedit Epiphany
KDE Qt KWin Konsole Dolphin Kate / KWrite Konqueror
LXDE GTK+ Openbox LXTerminal PCManFM Leafpad N/A
ROX GTK+ OroboROX ROXTerm ROX-Filer Edit N/A
Xfce GTK+ Xfwm Terminal Thunar Mousepad Midori

Resource cost

In terms of system resources, GNOME and KDE are expensive desktop environments. Not only do complete installations consume more disk space than lightweight alternatives (E17, LXDE, and Xfce) but also more CPU and memory resources while in use. This is because GNOME and KDE are relatively full-featured: they provide the most complete and well-integrated environments.

E17, LXDE, and Xfce, on the other hand, are lightweight desktop environments. They are designed to work well on older or lower-power hardware and generally consume fewer system resources while in use. This is achieved by cutting back on extra features (which some would term bloat).

Environment familiarity

Many users describe KDE as more Windows-like and GNOME as more Mac-like. This is a very subjective comparison, since either desktop environment can be customized to emulate the Windows or Mac operating systems. See Is KDE 'more Windows-like' than Gnome? and KDE vs Gnome for more information. (Linux is Not Windows is also an excellent resource.)

Custom environments

Desktop environments represent the simplest means of installing a complete graphical environment. However, users are free to build and customize their graphical environment in any number of ways should none of the popular desktop environments meet their requirements. Generally, building a custom environment involves selection of a suitable Window Manager and a number of Lightweight Applications (a minimalist selection usually includes a terminal emulator, file manager, and text editor).