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Plasma on Mobile Devices
Plasma on Mobile devices Application Ecosystem MC Bhushan Shah KDE Developer Agenda ● Initial development of the Plasma Mobile ● Basic architecture details ● Advantages to KDE community ● Application ecosystem and development ● Future for Plasma Mobile ● Challenges Introduction ● KDE developer and sysadmin ● Plasma Mobile maintainer and lead developer ● Employed by Bluesystems GmbH ● From Vadodara, India KDE ● Previously known as the K Desktop Environment ● Now community, which creates free software for end users ● Several products including Plasma, KDE Frameworks, KDE applications. Plasma Mobile ● Announced in the July 2015 ● Vision of providing completely free and open-source mobile platform which respects user’s privacy and freedom. ● Initial prototype on the LG Nexus 5. Initial Development ● LGE Nexus 5 as reference device ● Ubuntu Touch 15.04 (vivid) as base system ● Makes use of the Android binary blobs / drivers ● Can also run on the desktop system for development Basic architecture details ● KWin wayland as compositor ● DRM/GBM or hwcomposer backends ● plasmashell and mobile shell package ● QtQuickControls2 and Kirigami for application development Advantages to KDE community ● Several performance improvements ● Better touch input support in applications and shell ● Improvements in Wayland support ● More modular and re-usable user interfaces Application ecosystem and development ● QtQuickControls2 and Kirigami as toolkit ● CMake/QMake as a buildsystem ● Various bundle formats as well as native distribution packaging for the distribution -
Ultumix GNU/Linux 0.0.1.7 32 Bit!
Welcome to Ultumix GNU/Linux 0.0.1.7 32 Bit! What is Ultumix GNU/Linux 0.0.1.7? Ultumix GNU/Linux 0.0.1.7 is a full replacement for Microsoft©s Windows and Macintosh©s Mac OS for any Intel based PC. Of course we recommend you check the system requirements first to make sure your computer meets our standards. The 64 bit version of Ultumix GNU/Linux 0.0.1.7 works faster than the 32 bit version on a 64 bit PC however the 32 bit version has support for Frets On Fire and a few other 32 bit applications that won©t run on 64 bit. We have worked hard to make sure that you can justify using 64 bit without sacrificing too much compatibility. I would say that Ultumix GNU/Linux 0.0.1.7 64 bit is compatible with 99.9% of all the GNU/Linux applications out there that will work with Ultumix GNU/Linux 0.0.1.7 32 bit. Ultumix GNU/Linux 0.0.1.7 is based on Ubuntu 8.04 but includes KDE 3.5 as the default interface and has the Mac4Lin Gnome interface for Mac users. What is Different Than Windows and Mac? You see with Microsoft©s Windows OS you have to defragment your computer, use an anti-virus, and run chkdsk or a check disk manually or automatically once every 3 months in order to maintain a normal Microsoft Windows environment. With Macintosh©s Mac OS you don©t have to worry about fragmentation but you do have to worry about some viruses and you still should do a check disk on your system every once in a while or whatever is equivalent to that in Microsoft©s Windows OS. -
Affinity Photo-Digikam Summer 2020
UCLA Research Workshop Series Summer 2020 Affinity Photo & digiKam Anthony Caldwell What is Affinity Photo? Wikipedia: Affinity Photo is a raster graphics editor Serif: If you could create your own photo editing software, it would work like this. What is digiKam? Wikipedia: digiKam is a free and open-source image organizer and tag editor digiKam: digiKam is an advanced open-source digital photo management application that provides a comprehensive set of tools for importing, managing, editing, and sharing photos and raw files. Color Color Space Wikipedia: A color space is a specific organization of colors. In combination with physical device profiling, it allows for reproducible representations of color, in both analog and digital representations. Color depth The human eye can distinguish around a million colors Color depth 1-bit color 2 colors 2-bit color 4 colors 3-bit color 8 colors 4-bit color 16 colors 5-bit color 32 colors 8-bit color 256 colors 12-bit color 4096 colors High color (15/16-bit) 32,768 colors or 65,536 colors True color (24-bit) 16,777,216 colors Deep color (30-bit) 1.073 billion 36-bit approximately 68.71 billion colors 48-bit approximately 281.5 trillion colors Note: different configurations of software and hardware can produce different color values for each bit depth listed Color Space Commission internationale de l’éclairage 1931 color space Image Source: https://dot-color.com Color Space Additive color mixing Image Source: https://en.wikipedia.org Color Space K Subtractive color mixing Image Source: https://en.wikipedia.org Color Space The Lab Color Space Image Source: https://docs.esko.com/ Color Space Color Space Comparison Image Source: https://www.photo.net Affinity Photo and digiKam… Questions? Anthony Caldwell UCLA Digital Research Consortium Scholarly Innovation Labs 11630L Charles E. -
KDE Free Qt Foundation Strengthens Qt
How the KDE Free Qt Foundation strengthens Qt by Olaf Schmidt-Wischhöfer (board member of the foundation)1, December 2019 Executive summary The development framework Qt is available both as Open Source and under paid license terms. Two decades ago, when Qt 2.0 was first released as Open Source, this was excep- tional. Today, most popular developing frameworks are Free/Open Source Software2. Without the dual licensing approach, Qt would not exist today as a popular high-quality framework. There is another aspect of Qt licensing which is still very exceptional today, and which is not as well-known as it ought to be. The Open Source availability of Qt is legally protected through the by-laws and contracts of a foundation. 1 I thank Eike Hein, board member of KDE e.V., for contributing. 2 I use the terms “Open Source” and “Free Software” interchangeably here. Both have a long history, and the exact differences between them do not matter for the purposes of this text. How the KDE Free Qt Foundation strengthens Qt 2 / 19 The KDE Free Qt Foundation was created in 1998 and guarantees the continued availabil- ity of Qt as Free/Open Source Software3. When it was set up, Qt was developed by Troll- tech, its original company. The foundation supported Qt through the transitions first to Nokia and then to Digia and to The Qt Company. In case The Qt Company would ever attempt to close down Open Source Qt, the founda- tion is entitled to publish Qt under the BSD license. This notable legal guarantee strengthens Qt. -
Rkward: a Comprehensive Graphical User Interface and Integrated Development Environment for Statistical Analysis with R
JSS Journal of Statistical Software June 2012, Volume 49, Issue 9. http://www.jstatsoft.org/ RKWard: A Comprehensive Graphical User Interface and Integrated Development Environment for Statistical Analysis with R Stefan R¨odiger Thomas Friedrichsmeier Charit´e-Universit¨atsmedizin Berlin Ruhr-University Bochum Prasenjit Kapat Meik Michalke The Ohio State University Heinrich Heine University Dusseldorf¨ Abstract R is a free open-source implementation of the S statistical computing language and programming environment. The current status of R is a command line driven interface with no advanced cross-platform graphical user interface (GUI), but it includes tools for building such. Over the past years, proprietary and non-proprietary GUI solutions have emerged, based on internal or external tool kits, with different scopes and technological concepts. For example, Rgui.exe and Rgui.app have become the de facto GUI on the Microsoft Windows and Mac OS X platforms, respectively, for most users. In this paper we discuss RKWard which aims to be both a comprehensive GUI and an integrated devel- opment environment for R. RKWard is based on the KDE software libraries. Statistical procedures and plots are implemented using an extendable plugin architecture based on ECMAScript (JavaScript), R, and XML. RKWard provides an excellent tool to manage different types of data objects; even allowing for seamless editing of certain types. The objective of RKWard is to provide a portable and extensible R interface for both basic and advanced statistical and graphical analysis, while not compromising on flexibility and modularity of the R programming environment itself. Keywords: GUI, integrated development environment, plugin, R. -
Anexaminationofthebenefitsofus
An Examination 1 Running head: AN EXAMINATION OF THE BENEFITS OF USING OPEN SOURCE An Examination of the Benefits of Using Open Source Software in Schools Charles E. Craig, Jr. Tennessee Tech University July 21, 2011 An Examination 2 Abstract This research is an examination of ways that open source software can bring educational value and significant cost savings to K-12 schools. Existing case studies and other research are examined. Particular attention is given to K-12 schools which have implemented the free and open source Linux operating system to replace Microsoft Windows on older computers, as well as schools which have replaced Microsoft Office with OpenOffice. An Examination 3 Table of Contents Abstract …………………………………………………………………………………………2 List of Tables/Figures ………………………………………………………………………….. 4 Chapter I. Introduction …………………………………………………………………………..5 Chapter II. Methodology ………………………………………………………………………...8 Chapter III. A Comparison and Contrast of Proprietary Software and Open Source Software …9 Chapter IV. Educational Benefits of Open Source Software …………………………………..12 Chapter V. Cost Benefits of Open Source Software ……………………………………….…..29 Chapter VI. Summary, Conclusions, Recommendations …………...………………………….33 References ……………………………………………………………………………………...38 An Examination 4 List of Tables/Figures TABLES: Table 1. A Comparison of RAM and CPU Usage in Various Linux Desktop Environments and Window Managers …………………………………………………………………...….14 FIGURES: Figure 1. The Ubuntu Linux desktop……………………………………………………………13 Figure 2. A screenshot of the LibreOffice Writer word processor running in Linux……………17 Figure 3. A screenshot of the Kalzium periodic table software ..……………………………….18 Figure 4. Kanagram ……………………………………………………………………………..19 Figure 5. KGeography ………………………………………………………………………..…20 Figure 6. The KStars desktop planetarium ………………………………………………..…….21 Figure 7. The TuxMath interactive educational game …………………………………………..22 Figure 8. TuxPaint ……………………………………………………………………………....23 Figure 9. Peppermint OS Two running on an eight year old Dell desktop ……………………..35 Figure 10. -
Introduction to Linux
Presentation to U3A - Linux Introduction 8 June 2019 – Terry Schuster - [email protected] What is Linux? https://en.wikipedia.org/wiki/Linux https://www.iotforall.com/linux-operating-system-iot-devices/ In simple terms, Linux is an operating system which was developed to be a home-built version of UNIX, one of the first operating systems which could be run on different brands of mainframe computers with quite different types of hardware. Linux has developed to the extent that it is the leading operating system on servers and other big iron systems such as mainframe computers, and the only OS used on TOP500 supercomputers (since November 2017, having gradually eliminated all competitors). It is used by around 2.3 percent of desktop computers. The Chromebook, which runs the Linux kernel-based Chrome OS, dominates the US K–12 education market. In the mid 2000’s, Linux was quickly seen as a good building block for smartphones, as it provided an out- of-the-box modern, full-featured Operating System with very good device driver support, and that was considered both scalable for the new generation of devices and had the added benefit of being royalty free. It is now becoming very common in IoT devices, such as smart watches/refrigerators, home controllers, etc. etc. BTW, Tux is a penguin character and the official brand character of the Linux kernel. Originally created as an entry to a Linux logo competition, Tux is the most commonly used icon for Linux, although different Linux distributions depict Tux in various styles. The character is used in many other Linux programs and as a general symbol of Linux. -
KDE Plasma 5
Arvo Mägi KDE Plasma 5 Tallinn, 2017 1 Sissejuhatus KDE töökeskkonnale pani aluse saksa programmeerija Matthias Ettrich 14.10.1996. 2016. a oktoobris sai populaarne KDE seega 20. aastaseks. Hea ülevaate KDE ajaloost annab artikkel „19 Years of KDE History: Step by Step.” KDE 4.14 ilmumisega oli KDE saavutanud kasutusküpsuse, kuid edasine areng kippus takerduma – vaja oli põhimõttelisi uuendusi. Otsustati võtta kasutusele iseseisvatel moodulitel põhinev KDE 5 arhitektuur – Qt/Frameworks. Kõik KDE rakendusprogrammid, sh Plasma 5 töölaud, kasutavad ainult konkreetse rakenduse jaoks vajalikke mooduleid. Varem kasutati kõigi rakenduste jaoks ühist suurt teeki, mis raskendas muudatuste tegemist ja pidurdas arendustööd. Qt on C++ programmeerimiskeskkond. Pikaajalise toega Qt 5.9 LTS ilmus 31. mail 2017. KDE Frameworks on 70 moodulist koosnev komplekt, mis lihtsustab Qt keskkonnas KDE programmide koostamist. Frameworks veaparandused ja täiendused ilmuvad iga kuu. KDE Plasma 5 töölaud põhineb KDE Frameworksil (KF5). Töölaua veaparandused ilmuvad iga kuu, vajadusel mitu korda kuus, uued versioonid kord kvartalis. Plasma 5.8 LTS, mis on pikaajalise toega (18 kuud), ilmus 4.10.2016, veidi enne KDE 20. aastaseks saamist. Plasma 5.10 ilmus 30.05.2017. Järgmine pikaajalise toega Plasma 5.12 ilmub 2018. a jaanuaris. Plasma 5 töölaud on pälvinud palju kiitvaid hinnanguid ja sobib igapäevaseks tööks. Eeldab kaasaegset, mitme tuumaga protsessori ja piisava mäluga (vähemalt 4 GB) arvutit. SSD kettalt töötab välkkiirelt. Töölaud on keskkond rakendusprogrammide käivitamiseks ja kasutamiseks. KF5-le on üle viidud kõik KDE põhirakendused (failihaldur Dolphin, pildinäitaja Gwenview, konsool Konsole, teksti- redaktor Kate, ekraanitõmmise võtja Spectacle, videoredaktor Kdenlive, plaadikirjutaja K3b jt). Need on KDE Applications koosseisus, mille uued versioonid ilmuvad kolm korda aastas, veaparandused kord kuus. -
Free As in Freedom
Daily Diet Free as in freedom ... • The freedom to run the program, for any purpose (freedom 0). Application Seen elsewhere Free Software Choices • The freedom to study how the program works, and adapt it to Text editor Wordpad Kate / Gedit/Vi/ Emacs your needs (freedom 1). Access to the source code is a precondition for this. Office Suite Microsoft Office KOffice / Open Office • The freedom to redistribute copies so you can help your Word Processor Microsoft Word Kword / Writer Presentation PowerPoint KPresenter / Impress neighbor (freedom 2). Spreadsheet Excel Kexl / Calc • The freedom to improve the program, and release your Mail & Info Manager Outlook Thunderbird / Evolution improvements to the public, so that the whole community benefits (freedom 3). Access to the source code is a Browser Safari, IE Konqueror / Firefox precondition for this. Chat client MSN, Yahoo, Gtalk, Kopete / Gaim IRC mIRC Xchat Non-Kernel parts = GNU (GNU is Not Unix) [gnu.org] Netmeeting Ekiga Kernel = Linux [kernel.org] PDF reader Acrobat Reader Kpdf / Xpdf/ Evince GNU Operating Syetem = GNU/Linux or GNU+Linux CD - burning Nero K3b / Gnome Toaster Distro – A flavor [distribution] of GNU/Linux os Music, video Winamp, Media XMMS, mplayer, xine, player rythmbox, totem Binaries ± Executable Terminal>shell>command line – interface to type in command Partition tool Partition Magic Gparted root – the superuser, administrator Graphics and Design Photoshop, GIMP, Image Magick & Corel Draw Karbon14,Skencil,MultiGIF The File system Animation Flash Splash Flash, f4l, Blender Complete list- linuxrsp.ru/win-lin-soft/table-eng.html, linuxeq.com/ Set up Broadband Ubuntu – set up- in terminal sudo pppoeconf. -
Pourquoi Utiliser Gnu/Linux Et Des Logiciels
Réponse politique : pour ne pas laisser une seule entreprise contrôler l'utilisation de l'informatique. POURQUOI UTILISER GNU/LINUX ET La mainmise d'une entreprise en situation de quasi-monopole sur plusieurs secteurs de DES LOGICIELS LIBRES A L'ECOLE ? l'informatique a des conséquences importantes, dont l'imposition faite d'utiliser des logiciels spécifiques et des formats de fichiers propriétaires. Le maintien de ce genre de quasi-monopole tient à plusieurs phénomènes dont : ➢la pré installation d'un seul système d'exploitation sur l'écrasante majorité des ordinateurs. ➢l'utilisation de formats de fichiers propriétaires fermés contraignant à employer exclusivement les logiciels spécifiques associés pour pouvoir les lire et les éditer. * ➢une politique de marketing auprès des structures éducatives et de formation. C'est ce dernier point qui nous intéresse plus particulièrement. Définition : Un logiciel libre est un logiciel dont la licence donne à chacun la liberté d'utiliser, d'étudier, de modifier, de dupliquer, de donner et de vendre ledit logiciel. Un exemple : Si les produits de chez Microsoft sont si populaires, ils doivent en partie leur Cette notion s'oppose à celle de logiciel propriétaire. succès à l'école : les enseignants ont Word ; donc ils l'utilisent à l'école, et l'enseignent aux élèves. Quand les élèves sont adultes, ils connaissent Word, donc ils achètent Il existe des logiciels libres dans de nombreux domaines : bureautique (Open Office, Word. De toutes façons, leur futur employeur réclame un CV au format Word, donc il Koffice, Abiword...), navigation internet (Firefox, Dolphin...), graphisme (Gimp, Inkscape), faut Word. Pourquoi l'employeur réclame-t-il un document Word ? Parce qu'il utilise Word vidéo (Cinelerra, Kdenlive...), éducation (Gcompris, AbulEdu...), et également des systèmes à son bureau, car il a été à la même école que les autres élèves.. -
Why Be a KDE Project? Martin Klapetek David Edmundson
Why be a KDE Project? Martin Klapetek David Edmundson What is KDE? KDE is not a desktop, it's a community „Community of technologists, designers, writers and advocates who work to ensure freedom for all people through our software“ --The KDE Manifesto What is a KDE Project? Project needs more than just good code What will you get as a KDE Project? Git repository Git repository plus „scratch repos“ (your personal playground) Creating a scratch repo git push –all kde:scratch/username/reponame Git repository plus web interface (using GitPHP) Git repository plus migration from Gitorious.org Bugzilla (the slightly prettier version) Review Board Integration of git with Bugzilla and Review Board Integration of git with Bugzilla and Review Board Using server-side commit hooks ● BUG: 24578 ● CCBUG: 29456 ● REVIEW: 100345 ● CCMAIL: [email protected] Communication tools Mailing lists Wiki pages Forums Single sign-on to all services Official IRC channels #kde-xxxxx (on Freenode) IRC cloak me@kde/developer/mklapetek [email protected] email address Support from sysadmin team Community support Development support Translations (71 translation teams) Testing support (Active Jenkins and EBN servers, plus Quality Team) Project continuation (when you stop developing it) KDE e.V. support Financial and organizational help Trademark security Project's licence defense via FLA Promo support Stories in official KDE News site (Got the Dot?) Your blog aggregated at Planet KDE Promo through social channels Web hosting under kde.org domain Association with one of the best -
KDE Galaxy 4.13
KDE Galaxy 4.13 - Devaja Shah About Me ●3rd Year Alienatic Student at DA- !"# Gandhinagar ●Dot-editor %or KDE &romo "ea' ●Member of KDE e.(. ●&a))ion for Technology# Literature ●+un the Google Developer Group in !olle$e ●-rganizin$ Tea' of KDE Meetup# con%./de.in 14 -/ay, sooooo....... ●Ho1 many of you are %an) of Science Fiction3 ●Astronomy3 ● 0o1 is it Related to KDE3 ●That i) precisely 1hat the talk is about. ●Analogy to $et you to kno1 everythin$ that you should about ● “Galaxy KDE 4.13” 4ait, isn't it 4.14? ●KDE5) late)t ver)ion S! 4.14 6 7ove'ber 8914 ●KDE Soft1are !o',ilation ::.xx ●Significance o% +elea)e) ●- -r$ani.ed# )y)te'atic co',ilation o% %eature) < develo,'ent) ●- 2ive )erie) of relea)e) till date. ●7o Synchronized +elea)e) Any lon$er: ● - KDE 2ra'e1ork) > ?'onthly@ ● - KDE &la)'a > ?3 'onth)@ ● - KDE Ap,lication) ?date ba)ed@ ●Au)t *i/e Ap, (er)ion) But, 1hat am I to do o% the Galaxy 7umber? ●4ork in a "eam ●4ork acros) a Deadline ●-%;ce Space Si'ulation ●Added 'petus %or Deliverin$ your 2eature) ●You 1ork a) a ,art of the C!oreD Developer "ea' ● nstils Discipline ●Better +e),onse# Better 2eedbac/ ●Better Deliverance ●Synchronized 1ork with other C)ea)onedD developer) Enough of the bore....... ●Ho1 do $et started3 ● - Hope you didn't )nooze yesterday ● +!# Subscribe to Mailing Lists ●Mentoring Progra') ●GsoC# Season of KDE, O2W Progra') ●Bootstra,pin$ Training Session) Strap yourself onto the Rocket ●And Blast O%%......... ● ● ● Entered A 4ormhole and Ea,ped into the KDE Galaxy ●No1 what? ●Pick a Planet to nhabit ●But....