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KDE Display Manager
KDE Display Manager (KDM) is a display manager (a graphical login program) developed by KDE for the windowing systems X11. KDE Display Manager was based on the source code of X display manager and was the default display manager of the KDE Software Compilation, until it was retired in KDE Plasma 5 in favour of SDDM. KDM allowed the user to choose a desktop environment or window manager at login. KDM used the Qt application framework. It is configurable via KDE's System Settings; its appearance can be customized by the user. The default KDM login screen had a list of users. Each entry was comprised in the user's username, personal name (if available), and an icon. Next to the list is a greeting and a picture. One of the customization options is to replace the picture with an analog clock. From this screen the user can also run a user management tool, shut down or reboot the computer, or restart the X Window System. See also * getty – a non-graphical login program * Simple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C (programming Language)
C (''pronounced like the letter c'') is a General-purpose language, general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie, and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems, device drivers, protocol stacks, though decreasingly for application software. C is commonly used on computer architectures that range from the largest supercomputers to the smallest microcontrollers and embedded systems. A successor to the programming language B (programming language), B, C was originally developed at Bell Labs by Ritchie between 1972 and 1973 to construct utilities running on Unix. It was applied to re-implementing the kernel of the Unix operating system. During the 1980s, C gradually gained popularity. It has become one of the measuring programming language popularity, most widely used programming languages, with C compilers avail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Window Manager
A window manager is system software that controls the placement and appearance of windows within a windowing system in a graphical user interface. Most window managers are designed to help provide a desktop environment. They work in conjunction with the underlying graphical system that provides required functionality—support for graphics hardware, pointing devices, and a keyboard—and are often written and created using a widget toolkit. Few window managers are designed with a clear distinction between the windowing system and the window manager. Every graphical user interface based on a windows metaphor has some form of window management. In practice, the elements of this functionality vary greatly. Elements usually associated with window managers allow the user to open, close, minimize, maximize, move, resize, and keep track of running windows, including window decorators. Many window managers also come with various utilities and features such as task bars, program launch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ubuntu (operating System)
Ubuntu ( ) is a Linux distribution based on Debian and composed mostly of free and open-source software. Ubuntu is officially released in three editions: ''Desktop'', ''Server'', and ''Core'' for Internet of things devices and robots. All the editions can run on the computer alone, or in a virtual machine. Ubuntu is a popular operating system for cloud computing, with support for OpenStack. Ubuntu's default desktop changed back from the in-house Unity to GNOME after nearly 6.5 years in 2017 upon the release of version 17.10. Ubuntu is released every six months, with long-term support (LTS) releases every two years. , the most-recent release is 22.10 ("Kinetic Kudu"), and the current long-term support release is 22.04 ("Jammy Jellyfish"). Ubuntu is developed by British company Canonical, and a community of other developers, under a meritocratic governance model. Canonical provides security updates and support for each Ubuntu release, starting from the release date and unt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LightDM
LightDM is a free and open-source X display manager that aims to be lightweight, fast, extensible and multi-desktop. It can use various front-ends to draw User Interface, also called ''Greeters''. It also supports Wayland. LightDM is the default display manager for Edubuntu, Xubuntu and Mythbuntu since 11.10 release, for Lubuntu since 12.04 release until 16.10, for Kubuntu beginning with 12.10 until 15.04 for Linux Mint and Antergos. Features Features include: * codebase with very few dependencies * supports different display technologies (X11 and Wayland through Mir) * Supports remote login (incoming – XDMCP, VNC, outgoing – XDMCP, pluggable) * Comprehensive test suite. * standards-compliance (PAM, logind, etc.) * well-defined interface between the server and user interface * cross-desktop (greeters can be written in any toolkit) * well-defined greeter API allowing multiple GUIs * support for all display-manager use-cases, with plug-ins where appropriate LightDM has a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GNOME
A gnome is a mythological creature and diminutive spirit in Renaissance magic and alchemy, first introduced by Paracelsus in the 16th century and later adopted by more recent authors including those of modern fantasy literature. Its characteristics have been reinterpreted to suit the needs of various story tellers, but it is typically said to be a small humanoid that lives underground. Diminutive statues of gnomes introduced as lawn ornaments during the 19th century grew in popularity during the 20th century and came to be known as garden gnomes. History Origins The word comes from Renaissance Latin ''gnomus'', which first appears in ''A Book on Nymphs, Sylphs, Pygmies, and Salamanders, and on the Other Spirits'' by Paracelsus, published posthumously in Nysa in 1566 (and again in the Johannes Huser edition of 1589–1591 from an autograph by Paracelsus). The term may be an original invention of Paracelsus, possibly deriving the term from Latin ''gēnomos'' (itself represen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GNOME Display Manager
GNOME Display Manager (GDM) is a display manager (a graphical login manager) for the windowing systems X11 and Wayland. The X Window System by default uses the XDM display manager. However, resolving XDM configuration issues typically involves editing a configuration file. GDM allows users to customize or troubleshoot settings without having to resort to a command line. Users can pick their session type on a per-login basis. GDM 2.38.0 is the last version that features customization with themes; subsequent releases do not support themes. Software architecture GDM is a display manager that implements all significant features required for managing attached and remote displays. GDM was written from scratch and does not contain any XDM or X Consortium code. Components GDM comprises the following components: * Chooser – a program used to select a remote host for managing a display remotely on the attached display (gdm-host-chooser) * Greeter – the graphical login window (pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Getty (Unix)
getty, short for "get tty", is a Unix program running on a host computer that manages physical or virtual terminals (TTYs). When it detects a connection, it prompts for a username and runs the 'login' program to authenticate the user. Originally, on traditional Unix systems, getty handled connections to serial terminals (often Teletype machines) connected to a host computer. The ''tty'' part of the name stands for ''Teletype'', but has come to mean any type of text terminal. One ''getty'' process serves one terminal. In some systems, for example, Solaris, ''getty'' was replaced by ttymon. Personal computers running Unix-like operating systems, even if they do not provide any remote login services, may still use ''getty'' as a means of logging in on a local virtual console. Instead of the ''login'' program, ''getty'' may also be set up by the system administrator to run any other program, for example pppd ( point-to-point protocol daemon) to provide a dial-up Internet connectio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reboot (computing)
In computing, rebooting is the process by which a running computer system is restarted, either intentionally or unintentionally. Reboots can be either a cold reboot (alternatively known as a hard reboot) in which the power to the system is physically turned off and back on again (causing an initial boot of the machine); or a warm reboot (or soft reboot) in which the system restarts while still powered up. The term restart (as a system command) is used to refer to a reboot when the operating system closes all programs and finalizes all pending input and output operations before initiating a soft reboot. Terminology Etymology Early electronic computers (like the IBM 1401) had no operating system and little internal memory. The input was often a stack of punch cards or via a Switch Register. On systems with cards, the computer was initiated by pressing a start button that performed a single command - "read a card". This first card then instructed the machine to read more cards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shutdown (computing)
To shut down or power off a computer is to remove power from a computer's main components in a controlled way. After a computer is shut down, main components such as CPUs, RAM modules and hard disk drives are powered down, although some internal components, such as an internal clock, may retain power. Implementations The shutdown feature and command is available in Microsoft Windows, ReactOS, HP MPE/iX, and in a number of Unix and Unix-like operating systems such as Apple macOS. Microsoft Windows and ReactOS In Microsoft Windows and ReactOS, a PC or server is shut down by selecting the item from the Start menu on the desktop. Options include shutting down the system and powering off, automatically restarting the system after shutting down, or putting the system into stand-by mode. Just like other operating systems, Windows has the option to prohibit selected users from shutting down a computer. On a home PC, every user may have the shutdown option, but in computers o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Analog Clock
A clock or a timepiece is a device used to measure and indicate time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month and the year. Devices operating on several physical processes have been used over the millennia. Some predecessors to the modern clock may be considered as "clocks" that are based on movement in nature: A sundial shows the time by displaying the position of a shadow on a flat surface. There is a range of duration timers, a well-known example being the hourglass. Water clocks, along with the sundials, are possibly the oldest time-measuring instruments. A major advance occurred with the invention of the verge escapement, which made possible the first mechanical clocks around 1300 in Europe, which kept time with oscillating timekeepers like balance wheels., pp. 103–104., p. 31. Traditionally, in horology, the term ''clock'' was used for a strik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Name
A personal name, or full name, in onomastic terminology also known as prosoponym (from Ancient Greek πρόσωπον / ''prósōpon'' - person, and ὄνομα / ''onoma'' - name), is the set of names by which an individual person is known, and that can be recited as a word-group, with the understanding that, taken together, they all relate to that one individual. In many cultures, the term is synonymous with the ''birth name'' or ''legal name'' of the individual. In linguistic classification, personal names are studied within a specific onomastic discipline, called anthroponymy. In Western culture, nearly all individuals possess at least one ''given name'' (also known as a ''first name'', ''forename'', or ''Christian name''), together with a ''surname'' (also known as a ''last name'' or ''family name''). In the name "Abraham Lincoln", for example, ''Abraham'' is the first name and ''Lincoln'' is the surname. Surnames in the West generally indicate that the individual be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Username
A user is a person who utilizes a computer or Computer network, network Service (systems architecture), service. A user often has a user account and is identified to the system by a username (or user name). Other terms for username include login name, screenname (or screen name), account name, nickname (or nick) and handle, which is derived from the identical citizens band radio term. Some software products provide services to other systems and have no direct end users. End user End users are the ultimate human users (also referred to as Operator (profession), operators) of a software product. The end user stands in contrast to users who support or maintain the product such as sysops, database administrators and computer technicians. The term is used to abstract and distinguish those who only use the software from the developers of the system, who enhance the software for end users. In user-centered design, it also distinguishes the software operator from the client who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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