Linux Journal | June 2010 | Issue
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Red Hat Y Derivadas
Red Hat y derivadas Alberto Molina Coballes IES Gonzalo Nazareno 29 de octubre de 2020 Índice Red Hat Distribuciones derivadas Principales diferencias con Debian 1 8 Red Hat. Principales hitos. Red Hat Inc. Creada en 1993/1994 (Bob Young y Marc Erwing) 1994: Se publica Red Hat Linux (RHL) 1999: Sale a bolsa 2003: Se abandona RHL y surge RHEL 2003: Aparece Fedora (comunidad apoyada por RH) 2004: Aparece CentOS (proyecto independiente) 2014: Red Hat acuerda apoyar a CentOS 2019: IBM anuncia la compra Red Hat en octubre de 2018 por 34.000 millones de $ 2 8 Red Hat. Modelo de negocio Inicialmente software Unix y Linux Se centra en soluciones de software libre Siempre utilizando el término “open source” Ofrece soporte, consultoría, formación y certicación en sus tecnologías Una de las empresas que más contribuye en proyectos de software libre Trabaja típicamente con grandes clientes 3 8 Red Hat. Principales adquisiciones 2000 Cygnus 2003 Sistina (GFS, LVM, DM) 2006 JBoss 2008 Qumranet (KVM, SPICE) 2011 Gluster 2012 ManageIQ 2014 Inktank (Ceph) 2014 e-Novance (OpenStack) 2015 Ansible 2018 CoreOS 4 8 Red Hat. Principales productos Sistemas: RHEL, Satellite Virtualización, Hiperconvergencia Cloud: OpenStack, OpenShift Middleware: JBoss Almacenamiento: Ceph y Gluster Automatización: Ansible www.redhat.com/es/technologies/all-products 5 8 Versiones de RHEL Años Versión Núcleo 2002-2005 2.1 (1-7) 2.4.9 2003-2007 3 (1-9) 2.4.21 2005-2011 4 (1-9) 2.6.9 2007-2014 5 (1-11) 2.6.18 2010- 6 (1-10-. ) 2.6.32 2014- 7 (1-7-. -
Genesi Pegasos II Debian Linux by Maurie Ommerman CPD Applications Freescale Semiconductor, Inc
Freescale Semiconductor AN2739 Application Note Rev. 1, 03/2005 Genesi Pegasos II Debian Linux by Maurie Ommerman CPD Applications Freescale Semiconductor, Inc. Austin, TX This application note is the fourth in a series describing the Genesi Contents Pegasos II system, which contains a PowerPC™ microprocessor, 1. Introduction . 1 and the various applications of the system. 2. Terminology . 2 3. Starting Debian Linux . 2 4. Logging in as a Normal User . 6 5. Window Managers . 14 1 Introduction 6. Other User Applications . 19 7. Root User . 20 This application note describes the Debian Linux Operating 8. References . 43 System and many of the commands. Linux has a variety of ways 9. Document Revision History . 43 to accomplish most tasks. This document will show only one way to perform the actions described here. There are other ways. Also, there is usually a GUI way to accomplish most tasks, however, this paper presents command line methods for most tasks. GUI are nice, but they hide what is really happening. When the network is set up with a GUI, how the files are actually affected is not seen, but using the line commands allows feedback on exactly what is happening. This is not a complete guide to Debian Linux, but is a collection of useful things to help both the experienced and novice become quickly adept at using Debian Linux. © Freescale Semiconductor, Inc., 2005. All rights reserved. Terminology 2 Terminology The following terms are used in this document. CUPS Common Unix Printing System Architecture Debian One of the versions of Linux IDE A type of hard drive, which allows up to 2 drives on each channel Linux OS Linux operating system SCSI A type of hard drive, which allows up to 8 drives on each channel Shell A software construct to allow separate users and jobs within the same user to have a separate environment to avoid interfering with each other USB Universal serial bus Yellow Dog One of the versions of Linux 3 Starting Debian Linux Use the boot option 2 for the 2.4 kernel and option 3 for the 2.6 kernel, option 4 for the 2.6.8 kernel. -
Amiga NG Nr 0
Amiga.org.pl komputer Amiga współcześnie Spis treści AMIGA legenda informatyki 2 Retro 4 Emulacja 6 Współczesna Amiga nowej generacji 11 MorphOS 17 AROS 24 Amiga dzisiaj Zainteresowanie komputerem Amiga jest nieprzemijające. Niezależnie od tych, którzy mają Amigę “od zawsze”, biegnie współcześnie jej nieprzerwany rozwój, i to wielotorowo. Oprócz tego możemy cieszyć się różnymi hobbystycznymi rozwinięciami, pozwalającymi w sposób bardziej wygodny korzystać z rozrywki w formie retro. Amiga dzisiaj to “amigowanie”, wielka różnorodność i wiele smaków 1 Amiga retro AMIGA legenda informatyki AMIGA - pierwszy na świecie komputer multimedialny. Premiera w 1985 r. Wcześniej były inne innowacyjne konstrukcje (np. firmy Xerox czy Lisa firmy Apple) ale to Amiga wnosiła fenomenalną na ówczesne czasy grafikę, animację i dźwięk. Architektura komputera to specjalizowane układy odciążające procesor. artyści Andy Warhole i Debby Harry przy pierwszej Amidze Rewelacją był też wielozadaniowy system operacyjny. Prasa branżowa potraktowała wtedy Amigę jako zabawkę, nie wiadomo było co z tym robić. Ten pierwszy model nazywał się po prostu Amiga, potem nazywano go Amiga 1000. Projekt wraz z zespołem który go stworzył, z genialnym Jayem Minerem na czele, trafił pod skrzydła CBM (Commodore Business Machines), giganta w tamtym okresie jeśli chodzi o produkcję komputerów na świecie. Kolejne modele pojawiły się 2 lata później – dopiero one odniosły sukces. Amiga 2000 i Amiga 500, oparte na podobnych podzespołach, okienkowy graficzny interfejs – Workbench jednocześnie rozdzieliły pierwotną koncepcję na dwie linie komputerów – “duże” i “małe” Amigi. 2 Amiga retro “Duże” Amigi przypominały PC, były to desktopy, umożliwiające rozbudowę za pomocą kart rozszerzeń. Za sprawą rozszerzenia Video Toaster stały się na jakiś czas standardem w edycji wideo. -
Ixchariot® Performance Endpoints
IxChariot® Performance Endpoints Release 7.10 913-0951 Rev. A December 2009 Copyright © 2009 Ixia. All rights reserved. This publication may not be copied, in whole or in part, without Ixia’s consent. RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the U.S. Government is subject to the restrictions set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and FAR 52.227- 19. Ixia, the Ixia logo, and all Ixia brand names and product names in this document are either trademarks or registered trademarks of Ixia in the United States and/or other countries. All other trademarks belong to their respective owners. The information herein is furnished for informational use only, is subject to change by Ixia without notice, and should not be con- strued as a commitment by Ixia. Ixia assumes no responsibility or liability for any errors or inaccuracies contained in this publica- tion. Corporate Ixia Worldwide Headquarters Web site: www.ixiacom.com Headquarters 26601 W. Agoura Rd. General: [email protected] Calabasas, CA 91302 Investor Relations: [email protected] USA Training: [email protected] +1 877 FOR IXIA (877 367 4942) Support: [email protected] +1 818 871 1800 (International) +1 818 595 2599 (FAX) +1 818 871 1805 For the online support form, go to: [email protected] http://www.ixiacom.com/support/inquiry/ EMEA Ixia Europe Limited Support: [email protected] One Globeside, Fieldhouse Lane +44 1628 405797 Marlow, SL7 1HZ For the online support form, go to: United -
Computer Demos—What Makes Them Tick?
AALTO UNIVERSITY School of Science and Technology Faculty of Information and Natural Sciences Department of Media Technology Markku Reunanen Computer Demos—What Makes Them Tick? Licentiate Thesis Helsinki, April 23, 2010 Supervisor: Professor Tapio Takala AALTO UNIVERSITY ABSTRACT OF LICENTIATE THESIS School of Science and Technology Faculty of Information and Natural Sciences Department of Media Technology Author Date Markku Reunanen April 23, 2010 Pages 134 Title of thesis Computer Demos—What Makes Them Tick? Professorship Professorship code Contents Production T013Z Supervisor Professor Tapio Takala Instructor - This licentiate thesis deals with a worldwide community of hobbyists called the demoscene. The activities of the community in question revolve around real-time multimedia demonstrations known as demos. The historical frame of the study spans from the late 1970s, and the advent of affordable home computers, up to 2009. So far little academic research has been conducted on the topic and the number of other publications is almost equally low. The work done by other researchers is discussed and additional connections are made to other related fields of study such as computer history and media research. The material of the study consists principally of demos, contemporary disk magazines and online sources such as community websites and archives. A general overview of the demoscene and its practices is provided to the reader as a foundation for understanding the more in-depth topics. One chapter is dedicated to the analysis of the artifacts produced by the community and another to the discussion of the computer hardware in relation to the creative aspirations of the community members. -
GAME CAREER GUIDE July 2016 Breaking in the Easy(Ish) Way!
TOP FREE GAME TOOLS JULY 2016 GAME FROM GAME EXPO TO GAME JOB Indie intro to VR Brought to you by GRADUATE #2 PROGRAM JULY 2016 CONTENTS DEPARTMENTS 4 EDITOR’S NOTE IT'S ALL ABOUT TASTE! 96 FREE TOOLS FREE DEVELOPMENT TOOLS 2016 53 GAME SCHOOL DIRECTORY 104 ARRESTED DEVELOPMENT There are tons of options out there in terms INDIE DREAMIN' of viable game schools, and this list is just the starting point to get you acquainted with the schools near you (or far from you, if that’s what STUDENT POSTMORTEM you prefer!). 32 BEGLITCHED 72 VIRTUALLY DESIGNED NYU Game Center students Alec Thomson and Jennu Jiao Hsia discuss their IGF Award- VR has quickly moved from buzzword, to proto- winning match three game about insecurity type, to viable business. This guide will help you within computers, and within ourselves. get started in VR development, avoiding some common pitfalls. FEATURES 78 SOUNDS GOOD TO ME! 8 BREAKING IN THE EASY(ISH) WAY! Advice for making audio (with or without) How attending expos can land you a job. an audio specialist. 18 ZERO TO HERO Hey! You want to learn low poly modeling but 84 A SELLER’S MARKET don’t know where to start? Look no further! Marketing fundamentals for your first game. With this guide, we hope to provide a good introduction to not only the software, but 90 INTRO TO GAME ENGINES also the concepts and theory at play. A brief discussion of some of the newest and most popular DO YOU NEED A PUBLISHER? 34 game engines. -
QDK - QPKG Development Kit
QDK - QPKG Development Kit Makes Simple Things Easy and Hard Things Possible Copyright 2010 Michael Nordström Table of Contents QDK - QPKG Development Kit.......................................................................................................................1 Preface..............................................................................................................................................................3 Intended Audience...........................................................................................................................3 Conventions.....................................................................................................................................3 Installation of QDK..........................................................................................................................................4 QPKG Configuration File.................................................................................................................................5 Installation Script..............................................................................................................................................8 Generic Installation Script...............................................................................................................8 Package Specific Installation Functions........................................................................................10 Order of Execution.........................................................................................................................13 -
Safe Upgrade of Embedded Systems Arnout Vandecappelle
Safe upgrade of embedded systems Arnout Vandecappelle © 2012 Essensium N.V. This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License http://mind.be/content/Presentation_Safe-Upgrade.pdf or .odp You never know where your product will be used High-precision GNSS receiver Safe upgrade Arnout Vandecappelle You never know where your product will be used Safe upgrade Arnout Vandecappelle What if you install new firmware on remote systems? Safe upgrade Arnout Vandecappelle What if you install new firmware on remote systems? Murphy's Law Safe upgrade Arnout Vandecappelle What if you install new firmware on remote systems? Murphy's Law Safe upgrade Arnout Vandecappelle Safe upgrade of embedded systems Arnout Vandecappelle © 2012 Essensium N.V. This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License http://mind.be/content/Presentation_Safe-Upgrade.pdf or .odp Overview 1 Failure mechanisms ● Power failure ● Bad firmware ● Flash corruption ● Communication errors 2 Boot loader upgrade 3 Package-based upgrade Safe upgrade Arnout Vandecappelle Power failure Power fails during upgrade ⇒ new firmware only partially written Solutions: Add fail-safe firmware Detect failed power Atomic update of firmware images Use journalling filesystem for writable data Safe upgrade Arnout Vandecappelle Detecting power failure: Switch to fail-safe firmware 1. Boot current firmware fail- boot current config safe loader firmware files FW Safe upgrade Arnout Vandecappelle Detecting power failure: Switch to fail-safe firmware 2. Switch to fail-safe fail- boot current config safe loader firmware files FW Safe upgrade Arnout Vandecappelle Detecting power failure: Switch to fail-safe firmware fail- boot new config safe loader firmware files FW 3. -
Computer Architectures an Overview
Computer Architectures An Overview PDF generated using the open source mwlib toolkit. See http://code.pediapress.com/ for more information. PDF generated at: Sat, 25 Feb 2012 22:35:32 UTC Contents Articles Microarchitecture 1 x86 7 PowerPC 23 IBM POWER 33 MIPS architecture 39 SPARC 57 ARM architecture 65 DEC Alpha 80 AlphaStation 92 AlphaServer 95 Very long instruction word 103 Instruction-level parallelism 107 Explicitly parallel instruction computing 108 References Article Sources and Contributors 111 Image Sources, Licenses and Contributors 113 Article Licenses License 114 Microarchitecture 1 Microarchitecture In computer engineering, microarchitecture (sometimes abbreviated to µarch or uarch), also called computer organization, is the way a given instruction set architecture (ISA) is implemented on a processor. A given ISA may be implemented with different microarchitectures.[1] Implementations might vary due to different goals of a given design or due to shifts in technology.[2] Computer architecture is the combination of microarchitecture and instruction set design. Relation to instruction set architecture The ISA is roughly the same as the programming model of a processor as seen by an assembly language programmer or compiler writer. The ISA includes the execution model, processor registers, address and data formats among other things. The Intel Core microarchitecture microarchitecture includes the constituent parts of the processor and how these interconnect and interoperate to implement the ISA. The microarchitecture of a machine is usually represented as (more or less detailed) diagrams that describe the interconnections of the various microarchitectural elements of the machine, which may be everything from single gates and registers, to complete arithmetic logic units (ALU)s and even larger elements. -
Efika MX Smarttop Manual
E N G L I S H E S P A Ñ O L F R A N Ç A I S D E U T S C H Congratulations on purchasing an Efika MX Cloud Computer. S U P P O R T For access to software updates, product news and our development blog, please visit www.efikamx.info For technical discussions, developer support and resources, please visit www.powerdeveloper.org Package Contents Before you set up your computer, please ensure that your product package includes the following items. • Efika MX Cloud Computer (Smarttop) • User Manual • AC Adapter & Power Cord First Use Instructions Before you use your Efika MX Cloud Computer for the first time, please read the safety chapter included in this user manual. Software Information The default username and password on the provided OS installation is as follows. Username: oem Password: oem For additional documentation about your operating system, please visit www.efikamx.info Product Overview Power Button 3G SIM Slot USB Ports SD / MMC Card Slot DC-IN HDMI RJ45 Audio Out Mic In (Display) (Ethernet) Product Specifications Processor Freescale i.MX515, 800MHz Memory DDR2 512MB, up to 200MHz Graphics & Video Embedded 2D / 3D AMD Core Module Hardware Video Codec Full HW accelerated HD720 playback Display Modes HDMI (version 1.2a) 720P Memory Card MMC, SD, push / push type, by esdhc Slot (Enhanced Multi-Media Card Secure Digital Host Controller) Storage Device SSD 8G Connectivity Ethernet support (default) WLAN 802.11 b/g/n support (optional) or 3G / UMTS support (optional) LED Status Booting (Blue) Indicator System on (Green) DISK IO (flickering) Interface 1x RJ 45 (10/100M) 1 x Audio jack : Audio out 1 x Mic - In 1x DC - In 2x USB 2.0 ports 1x HDMI port 1x SIM slot (optional with WWAN SKU) 20 pin connector for debugging (optional) Audio 1x Built-in speaker (1.5 W) Power Max power consumption: 15 watt Management Power off: Press 4 times AC adapter Output: 12V DC, 3A, 36W Input : 100~240V AC, 50 - 60Hz universal Dimensions / Size: 160*115mm Weight Height: 20mm Weight 250g Temperature Working: 0°C~+40°C Step-by-Step Setup 1. -
Ward Library Technology Plan.Pdf
Ward Town Library Technology Implementation Plan Submitted 27 May 2010 LIS 4100 Library and Information Technologies Professor Shimelis Assefa Ellwood Colahan EXECUTIVE SUMMARY The Ward Town Library was established in 1974 and serves as an informal book exchange for a community of approximately 380 people in and around the small, isolated mountain town of Ward, Colorado. In the more than thirty-five years of its existence, the library has become an important cultural institution in the town, but the collection has never been cataloged and circulation has never been managed. The only technology used in the library now is an old phonograph and an electric typewriter. This plan envisions an ultra-low-budget technology implementation in the Ward Library that will make available the most important functionalities of a modern library without requiring large investments in hardware, software, or staff training. Highlights of the plan include the following: Acquisition of four desktop computer workstations and a battery-equipped netbook computer to be used in case of power outages. Broadband Internet access with all-wireless networking. Cataloging and organizing the hundreds of items in the library using the free online service, LibraryThing. Online browsing and searching with LibraryThing in high- or low-graphics mode. Managing circulation with LibraryThing. Regular local export of online catalog data from Librarything to ensure operability during power or Internet service interruptions. Implementation of a library web portal with 2.0 features like commenting, chat, and embedded catalog search, using all-free resources. An all-open-source software environment. A program of technology instruction. Simple procedures: no bibliographic or technological training necessary for library staff. -
Introduction to Free Software-SELF
Introduction to Free Software Jordi Mas Hernández (coordinador) David Megías Jiménez (coordinador) Jesús M. González Barahona Joaquín Seoane Pascual Gregorio Robles XP07/M2101/02708 © FUOC • XP07/M2101/02708 Introduction to Free Software Jordi Mas Hernández David Megías Jiménez Jesús M. González Barahona Founding member of Softcatalà and Computer Science Engineer by the Professor in the Department of Tele- of the telematic network RedBBS. Universitat Autònoma de Barcelona matic Systems and Computation of He has worked as a consultant in (UAB, Spain). Master in Advanced the Rey Juan Carlos University (Ma- companies like Menta, Telépolis, Vo- Process Automatisation Techniques drid, Spain), where he coordinates dafone, Lotus, eresMas, Amena and by the UAB. PhD. in Computer Sci- the research group LibreSoft. His Terra España. ence by the UAB. Associate Profes- professional areas of interest include sor in the Computer Science, Multi- the study of free software develop- media and Telecommunication De- ment and the transfer of knowledge partment of the Universitat Oberta in this field to the industrial sector. de Catalunya (UOC, Spain) and Di- rector of the Master Programme in Free Software at the UOC. Joaquín Seoane Pascual Gregorio Robles PhD. Enigeer of Telecommunicati- Assistant professor in the Rey Juan ons in the Politechnical University Carlos University (Madrid, Spain), of Madrid (Spain). He has worked where he acquired his PhD. de- in the private sector and has al- gree in February 2006. Besides his so taught in the Computer Scien- teaching tasks, he researches free ce Faculty of that same university. software development from the Nowadays he is professor in the De- point of view of software enginee- partment of Telematic Systems En- ring, with special focus in quantitati- gineering, and has taught courses ve issues.