Linux Was? Wie? Wo? H¨A?
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Current Perspectives on Linux Accessibility Tools for Visually Impaired Users
ЕЛЕКТРОННО СПИСАНИЕ „ИКОНОМИКА И КОМПЮТЪРНИ НАУКИ“, БРОЙ 2, 2019, ISSN 2367-7791, ВАРНА, БЪЛГАРИЯ ELECTRONIC JOURNAL “ECONOMICS AND COMPUTER SCIENCE”, ISSUE 2, 2019, ISSN 2367-7791, VARNA, BULGARIA Current Perspectives on Linux Accessibility Tools for Visually Impaired Users Radka NACHEVA1 1 University of Economics, Varna, Bulgaria [email protected] Abstract. The development of user-oriented technologies is related not only to compliance with standards, rules and good practices for their usability but also to their accessibility. For people with special needs, assistive technologies have been developed to ensure the use of modern information and communication technologies. The choice of a particular tool depends mostly on the user's operating system. The aim of this research paper is to study the current state of the accessibility software tools designed for an operating system Linux and especially used by visually impaired people. The specific context of the considering of the study’s objective is the possibility of using such technologies by Bulgarian users. The applied approach of the research is content analysis of scientific publications, official documentation of Linux accessibility tools, and legal provisions and classifiers of international organizations. The results of the study are useful to other researchers who work in the area of accessibility of software technologies, including software companies that develop solutions for visually impaired people. For the purpose of the article several tests are performed with the studied tools, on the basis of which the conclusions of the study are made. On the base of the comparative study of assistive software tools the main conclusion of the paper is made: Bulgarian visually impaired users are limited to work with Linux operating system because of the lack of the Bulgarian language support. -
Release Notes and Errata
OpenMandriva Lx 4.3rc Release Notes The OpenMandriva Lx teams are pleased to announce the availability of OpenMandriva Lx 4.3rc. Available Media This release is available as a live media DVD or USB flash drive (memory stick), downloadable in ISO format. These are available on our downloads page. USB flash drive installation is usually noticeably faster. As always speed depends on many factors. Live media means you are able to run OpenMandriva Lx straight from a DVD or memory stick (see below) and try it before installing it. You may also install the system to hard disk either from the running live image or from the boot manager. Available ISO files are: •x86_64 KDE Plasma desktop full featured (includes the most common used functionalities, multimedia and office software). •znver1 Plasma: we have also built a version specifically for current AMD processors (Ryzen, ThreadRipper, EPYC) that outperforms the generic (x86_64) version by taking advantage of new features in those processors. znver1 is for the listed processors (Ryzen, ThreadRipper, EPYC) only, do not install on any other hardware. Installable images are offered for the Pinebook Pro, Raspberry Pi 4B, Raspberry Pi 3B+, Synquacer, Cubox Pulse and generic UEFI compatible devices (such as most aarch64 server boards) System requirements OpenMandriva Lx 4.3 requires at least 2048 MB of memory and at least 10 GB of hard drive space (see below for known issues with partitioning). Important Note: Graphics Hardware: The KDE Plasma Desktop requires a 3D graphics card that supports OpenGL 2.0 or above. We recommend using AMD, Intel, Adreno or VC4 graphics chips. -
Assistive Technology for Disabled Persons
International Conference on Recent Advances in Computer Systems (RACS 2015) Assistive Technology for Disabled Persons Aslam Muhammad1, Warda Ahmad2, Tooba Maryam3, Sidra Anwar4 Department of CS &, U. E. T., Lahore, Pakistan ([email protected], [email protected], [email protected]) Martinez Enriquez A. M. Center of Investigation and Advanced Studies (CINVESTAV), D.F. Mexico ([email protected]) Abstract: Assistive technology aims to serve the disabled access Information Technology (IT) – e.g., Braille display, people, who are unable to do their daily routines with ease. Screen readers, voice recognition programs, speech Despite the emphasis on mechanics and the rapid proliferation synthesizer, screen magnifier, teletypewriters conversion of modern devices, little is known about the specific uses of such modem, etc. [30]. These gadgets can include hardware, gadgets introduced now-a-days. Guardians of fully/partially software, and peripherals that assist people with disabilities. sighted and handicapped persons remain indecisive in making selection of required tools. Thus, the purpose of this work is to Almost all the famous operating systems like Windows, help people in choosing the best suited widgets for them. We Linux, and Solaris, etc. have some build-in accessibility conduct a parameterized review and a systematic analysis of features for disabled people e.g. Narrator, Vinux and Windows and Linux based assistive artificial supporting agents. complete mouseless access to the desktop respectively. This study is carried out to show the currently available Along with these build-in features they also provide support assistive crafts, their working, effectiveness, performance, and to wide range of assistive technologies available cost. On this basis of the review, recommendations are given to commercially and for free. -
Architecture
Skolelinux - Architecture Petter Reinholdtsen [email protected] Skolelinux - Architecture by Petter Reinholdtsen Published v0.1, 2002-12-07 Copyright © 2001, 2002, 2003, 2004 Petter Reinholdtsen * Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Public License, Version 2 or any later version published by the Free Software Foundation. Skolelinux is the Debian-edu project’s Custom Debian Distribution (CDD) in development (http://wiki.debian.net/index.cgi?CustomDebian). What this means is that Skolelinux is a version of Debian whose out-of-the box environment gives you a completely configured school-network (In Norway, where Skolelinux was started, the main target group is schools serving the 6-16 years age bracket). This document describes the network architecture and services provided by a Skolelinux installation. Revision History Revision 0.1 2002-12-07 Revised by: pere Table of Contents 1. Network ..................................................................................................................................................1 2. Services ...................................................................................................................................................2 2.1. Thin client services .....................................................................................................................4 3. Administration .......................................................................................................................................5 -
"Debian Edu / Skolelinux Lenny 5.0.6+Edu1 Manual"
"Debian Edu / Skolelinux Lenny 5.0.6+edu1 Manual" November 21, 2010 "Debian Edu / Skolelinux Lenny 5.0.6+edu1 Manual" i CONTENTS CONTENTS Contents 1 Manual for Debian Edu 5.0.6+edu1 Codename "Lenny"1 2 About Debian Edu and Skolelinux1 3 Architecture 1 3.1 Network...............................................1 3.1.1 Main server (tjener)....................................2 3.1.2 Services running on the main server...........................2 3.1.3 LTSP server(s) (Thin client server(s))..........................3 3.1.4 Thin clients.........................................3 3.1.5 Diskless workstations...................................4 3.1.6 Networked clients.....................................4 3.2 Administration...........................................4 3.3 Installation.............................................4 3.4 File system access configuration.................................4 3.5 random notes............................................5 4 Features 5 4.1 New in Debian Edu 5.0.6+edu1 Codename "Lenny" released 2010-10-05..........5 4.2 New features in Debian Edu 5.0.4+edu0 Codename "Lenny" released 2010-02-08.....6 4.3 New features in Debian 5.0.4 upon which Debian Edu 5.0.4+edu0 is based.........7 4.4 New features in the "3.0r1 Terra" release 2007-12-05......................7 4.5 New features in the "3.0r0 Terra" release 2007-07-22......................7 4.6 Features in 2.0 release 2006-03-14.................................8 4.7 Features in "1.0 Venus" release 2004-06-20............................8 4.8 More information on older releases...............................8 5 Requirements 8 5.1 Hardware requirements......................................8 5.2 Hardware known to work.....................................9 6 Requirements for a network setup9 6.1 Default Setup............................................9 6.2 Internet router...........................................9 7 Installation 10 7.1 Where to find additional information............................. -
Download Android Os for Phone Open Source Mobile OS Alternatives to Android
download android os for phone Open Source Mobile OS Alternatives To Android. It’s no exaggeration to say that open source operating systems rule the world of mobile devices. Android is still an open-source project, after all. But, due to the bundle of proprietary software that comes along with Android on consumer devices, many people don’t consider it an open source operating system. So, what are the alternatives to Android? iOS? Maybe, but I am primarily interested in open-source alternatives to Android. I am going to list not one, not two, but several alternatives, Linux-based mobile OSes . Top Open Source alternatives to Android (and iOS) Let’s see what open source mobile operating systems are available. Just to mention, the list is not in any hierarchical or chronological order . 1. Plasma Mobile. A few years back, KDE announced its open source mobile OS, Plasma Mobile. Plasma Mobile is the mobile version of the desktop Plasma user interface, and aims to provide convergence for KDE users. It is being actively developed, and you can even find PinePhone running on Manjaro ARM while using KDE Plasma Mobile UI if you want to get your hands on a smartphone. 2. postmarketOS. PostmarketOS (pmOS for short) is a touch-optimized, pre-configured Alpine Linux with its own packages, which can be installed on smartphones. The idea is to enable a 10-year life cycle for smartphones. You probably already know that, after a few years, Android and iOS stop providing updates for older smartphones. At the same time, you can run Linux on older computers easily. -
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. -
Debian Edu / Skolelinux Wheezy 7.1+Edu0 Manual
Debian Edu / Skolelinux Wheezy 7.1+edu0 Manual May 28, 2016 i CONTENTS CONTENTS Contents 1 Manual for Debian Edu 7.1+edu0 Codename Wheezy1 2 About Debian Edu and Skolelinux1 2.1 Some history and why two names . .1 3 Architecture 2 3.1 Network . .2 3.1.1 The default network setup . .3 3.1.2 Main server (tjener) . .3 3.1.3 Services running on the main server . .3 3.1.4 LTSP server(s) (Thin client server(s)) . .5 3.1.5 Thin clients . .5 3.1.6 Diskless workstations . .5 3.1.7 Networked clients . .5 3.2 Administration . .5 3.2.1 Installation . .5 3.2.2 File system access configuration . .6 4 Requirements 6 4.1 Hardware requirements . .6 4.2 Hardware known to work . .7 5 Requirements for network setup7 5.1 Default Setup . .7 5.2 Internet router . .7 6 Installation and download options8 6.1 Where to find additional information . .8 6.2 Download the installation media for Debian Edu 7.1+edu0 Codename "Wheezy" . .8 6.2.1 netinstall CD image for i386, amd64 . .8 6.2.2 USB flash drive / Blue-ray disc ISO image for i386 and amd64 . .8 6.2.3 Source image . .8 6.3 Request a CD / DVD by mail . .8 6.4 Installing Debian Edu . .9 6.4.1 Select type of installation . .9 6.4.1.1 Additional boot parameters for installations . 12 6.4.2 The installation process . 12 6.4.3 Notes on some characteristics . 14 6.4.3.1 A note on notebooks . -
Introduction to Fmxlinux Delphi's Firemonkey For
Introduction to FmxLinux Delphi’s FireMonkey for Linux Solution Jim McKeeth Embarcadero Technologies [email protected] Chief Developer Advocate & Engineer For quality purposes, all lines except the presenter are muted IT’S OK TO ASK QUESTIONS! Use the Q&A Panel on the Right This webinar is being recorded for future playback. Recordings will be available on Embarcadero’s YouTube channel Your Presenter: Jim McKeeth Embarcadero Technologies [email protected] | @JimMcKeeth Chief Developer Advocate & Engineer Agenda • Overview • Installation • Supported platforms • PAServer • SDK & Packages • Usage • UI Elements • Samples • Database Access FireDAC • Migrating from Windows VCL • midaconverter.com • 3rd Party Support • Broadway Web Why FMX on Linux? • Education - Save money on Windows licenses • Kiosk or Point of Sale - Single purpose computers with locked down user interfaces • Security - Linux offers more security options • IoT & Industrial Automation - Add user interfaces for integrated systems • Federal Government - Many govt systems require Linux support • Choice - Now you can, so might as well! Delphi for Linux History • 1999 Kylix: aka Delphi for Linux, introduced • It was a port of the IDE to Linux • Linux x86 32-bit compiler • Used the Trolltech QT widget library • 2002 Kylix 3 was the last update to Kylix • 2017 Delphi 10.2 “Tokyo” introduced Delphi for x86 64-bit Linux • IDE runs on Windows, cross compiles to Linux via the PAServer • Designed for server side development - no desktop widget GUI library • 2017 Eugene -
Clang & LLVM: How They Can Improve Your Life As a Developer
Clang & LLVM: How they can improve your life as a developer Tilmann Scheller Overview Introduction LLVM Overview Clang Performance Summary What is LLVM? Mature, production-quality compiler framework Modular architecture Heavily optimizing static and dynamic compiler Supports all major architectures (x86, ARM, MIPS, PowerPC, …) Powerful link-time optimizations (LTO) Permissive license (BSD-like) LLVM sub-projects Clang C/C++/Objective C frontend and static analyzer LLDB Next generation debugger leveraging the LLVM libraries, e.g. the Clang expression parser lld Framework for creating linkers, will make Clang independent of the system linker in the future Polly Polyhedral optimizer for LLVM, e.g. high-level loop optimizations and data- locality optimizations Which companies are contributing? ® Who is using LLVM? WebKit FTL JIT Rust Android (NDK, ART, RenderScript) Portable NativeClient (PNaCl) Majority of OpenCL implementations based on Clang/LLVM CUDA, RenderScript LLVM on Linux: LLVMLinux, LLVMpipe (software rasterizer in Mesa), Radeon R300-R900 drivers in Mesa Clang users Default compiler on OS X Default compiler on FreeBSD Default compiler for native applications on Tizen Default compiler on OpenMandriva Lx starting with the next release (2015.0) Debian experimenting with Clang as an additional compiler (94.3% of ~20k packages successfully build with Clang 3.5) Android NDK ships Clang LLVM LLVM IR Scalar optimizations Interprocedural optimizations Auto-vectorizer (BB, Loop and SLP) Profile-guided optimizations Compiler Architecture -
Debian \ Amber \ Arco-Debian \ Arc-Live \ Aslinux \ Beatrix
Debian \ Amber \ Arco-Debian \ Arc-Live \ ASLinux \ BeatriX \ BlackRhino \ BlankON \ Bluewall \ BOSS \ Canaima \ Clonezilla Live \ Conducit \ Corel \ Xandros \ DeadCD \ Olive \ DeMuDi \ \ 64Studio (64 Studio) \ DoudouLinux \ DRBL \ Elive \ Epidemic \ Estrella Roja \ Euronode \ GALPon MiniNo \ Gibraltar \ GNUGuitarINUX \ gnuLiNex \ \ Lihuen \ grml \ Guadalinex \ Impi \ Inquisitor \ Linux Mint Debian \ LliureX \ K-DEMar \ kademar \ Knoppix \ \ B2D \ \ Bioknoppix \ \ Damn Small Linux \ \ \ Hikarunix \ \ \ DSL-N \ \ \ Damn Vulnerable Linux \ \ Danix \ \ Feather \ \ INSERT \ \ Joatha \ \ Kaella \ \ Kanotix \ \ \ Auditor Security Linux \ \ \ Backtrack \ \ \ Parsix \ \ Kurumin \ \ \ Dizinha \ \ \ \ NeoDizinha \ \ \ \ Patinho Faminto \ \ \ Kalango \ \ \ Poseidon \ \ MAX \ \ Medialinux \ \ Mediainlinux \ \ ArtistX \ \ Morphix \ \ \ Aquamorph \ \ \ Dreamlinux \ \ \ Hiwix \ \ \ Hiweed \ \ \ \ Deepin \ \ \ ZoneCD \ \ Musix \ \ ParallelKnoppix \ \ Quantian \ \ Shabdix \ \ Symphony OS \ \ Whoppix \ \ WHAX \ LEAF \ Libranet \ Librassoc \ Lindows \ Linspire \ \ Freespire \ Liquid Lemur \ Matriux \ MEPIS \ SimplyMEPIS \ \ antiX \ \ \ Swift \ Metamorphose \ miniwoody \ Bonzai \ MoLinux \ \ Tirwal \ NepaLinux \ Nova \ Omoikane (Arma) \ OpenMediaVault \ OS2005 \ Maemo \ Meego Harmattan \ PelicanHPC \ Progeny \ Progress \ Proxmox \ PureOS \ Red Ribbon \ Resulinux \ Rxart \ SalineOS \ Semplice \ sidux \ aptosid \ \ siduction \ Skolelinux \ Snowlinux \ srvRX live \ Storm \ Tails \ ThinClientOS \ Trisquel \ Tuquito \ Ubuntu \ \ A/V \ \ AV \ \ Airinux \ \ Arabian -
Business Informatics 2 (PWIN) SS 2021 Lecture 04
Lecture 04 Business Informatics 2 (PWIN) SS 2021 Information Systems III Mobile Information Systems Prof. Dr. Kai Rannenberg Chair of Mobile Business & Multilateral Security Johann Wolfgang Goethe University Frankfurt a. M. Special of the day . “Heads in the Clouds: Measuring the Implications of Universities Migrating to Public Clouds”, v2 (2021-04- 20) . By Tobias Fiebig, Seda Gürses, Carlos H. Gañán, Erna Kotkamp, Fernando Kuipers, Martina Lindorfer, Menghua Prisse, Taritha Sari (TU Delft, TU Wien) . https://arxiv.org/abs/2104.09462 . Typical IS article in general topic and structure . Topic: analysis of information systems of organisations and strategic considerations (in this case universities) . Structure: Introduction, Background, Methodology overview (focus, data set), Data analysis of case(s), Discussion, Limitations, Related work, Conclusion(s), Acknowledgements 2 Agenda . What is Mobility? . Mobile Infrastructure and Ecosystem . Mobile Information Systems . Conclusion on Challenges / Benefits of Mobile IS 3 Mobility What is mobility? Lat. mobilitas: (1) Flexibility, velocity, motion; and as “mobilitas animi”: (mental) fitness (2) But also (and quite ambivalent to (1)) changeability, inconstancy, unstableness [SkuStowPets1998] 4 Mobility . Social implications Mobility not just “humans’ independence from geographical constraints” . Spatial mobility . Temporal mobility . Contextual mobility [KakihaSorens2001] 5 Agenda . What is Mobility? . Mobile Infrastructure & Ecosystem . Mobile Voice & Data Communication Services . Mobile Devices . Smartcards and Subscriber Identity Module (SIM) . Mobile Operating Systems . Mobile Web Apps vs. Mobile Apps . App Markets . Mobile Infrastructure and Ecosystem . Conclusion on Challenges / Benefits of Mobile IS 6 Mobile Voice & Data Communication Services . Mobile device . Base station/mobile station/cell . Connection to the Internet User terminal 7 Mobile Voice & Data Communication Services Fundamental mobile communication services .