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today's leftovers

  • New book: The Official Raspberry Pi Handbook 2021
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  • CodeBug Connect IoT development board is designed for young makers (Crowdfunding)

    In 2015, a UK-based team launched a mini IoT development board called CodeBug. The same team has now come up with the CodeBug Connect IoT Development Board. CodeBug Connect is a new wearable micro-computer that brings IoT to everyone and aimed at educators and young makers.

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    IBM reportedly cutting 10,000 employees from European services unit
                 
                   

    International Business Machines Corp. is planning to eliminate about 10,000 jobs from its European services unit to cut costs ahead of a spinoff of the division next year, according to a report today from Bloomberg.

                   

    The job cuts would affect about 20% of IBM staff in the region, with the biggest cuts coming to offices in the U.K. and Germany. Offices in Poland, Slovakia, Italy and Belgium will also reportedly see their headcounts cut as well.

  • Failed States of Conscience

    Keen leads the reader through three stages in the journey toward his unsettling conclusions – Web 1.0, Web 2.0 and Web 3.0, which roughly correspond to the past, present and future of the Internet’s development. He begins with Web 1.0, reminding us of the Internet’s paranoia-driven beginnings. There might not be the online environment we have all come to depend on if not for the US military panic over the Soviet launching of the Sputnik satellite in 1959, which demonstrated an unimagined first-strike capability and made militarists aware of the catastrophic vulnerabilities of the national telecommunications system.

    Keen details the discovery and implementation of two still-key electronic protocols – TCP/IP – that would allow any two computers anywhere in the world to speak and share with one another. It was rather like a Westphalian treaty for data, which provided standardization of rules – protocols – making communication uniform and universal, as the system reduced all human languages to logical data bits. Once generals were certain they’d developed a system of networked computers capable of reliably talking to one another even in the event of nuclear war – they called it ARPANET – they breathed a sigh of relief from within the padded walls of the Cold War policy known as Mutally Assured Destruction (MAD).

  • I Rest My Case

    Jeff Rothenberg's seminal 1995 Ensuring the Longevity of Digital Documents focused on the threat of the format in which the documents were encoded becoming obsolete, and rendering its content inaccessible. This was understandable, it was a common experience in the preceeding decades. Rothenberg described two different approaches to the problem, migrating the document's content from the doomed format to a less doomed one, and emulating the software that accessed the document in a current environment.

    The Web has dominated digital content since 1995, and in the Web world formats go obsolete very slowly, if at all, because they are in effect network protocols. The example of IPv6 shows how hard it is to evolve network protocols. But now we are facing the obsolescence of a Web format that was very widey used as the long effort to kill off Adobe's Flash comes to fruition. Fortunately, Jason Scott's Flash Animations Live Forever at the Internet Archive shows that we were right all along. Below the fold, I go into the details.

today's howtos

  • How to install SNAP on Linux Mint 20 - Linux Shout

    The snap universal package management has been removed by the Linux Mint 20 developers. Yes, out of the box, you can’t use the SNAP command as we do in Ubuntu. [...] However, we can install most of the available Debian packages using the APT package manager, yet, if any of us still want to use the SNAP on Linux Mint, we can do that because being on the open-source OS, we are not bounded to any particular thing and it’s our choice what to use and what to not. Therefore, if any one of you is interested then here is the tutorial on it.

  • How to install PHP 8 on CentOS 8 & RHEL 8

    In this article, you will learn how to install the latest PHP version 8 on CentOS 8, RHEL 8 Linux distributions. PHP is one of the most popular server-side scripting languages. Most of the websites on the internet are using PHP including Facebook, Yahoo, Wikipedia. There are many frameworks that are also built with PHP, like WordPress, Codeigniter, Laravel, etc. Even this website is using PHP. This blog is built on the WordPress framework which is written in PHP. So let’s go through the complete guide on how to install the latest stable release of PHP 8.0 on CentOS and REHL.

  • How To Install Pantheon Desktop on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Pantheon Desktop on Ubuntu 20.04 LTS. For those of you who didn’t know, Pantheon is a default desktop environment for Elementary OS. It is developed by the same team that builds the elementary OS. It is written from scratch using Vala and the GTK3 toolkit and is widely known for its highly polished appearance. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step by step installation of Pantheon Desktop on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian based distribution like Linux Mint.

  • How to check who's logged in to your linux machine - The Linux Juggernaut

    If you have a linux server, It is absolutely necessary to know how to check the users that are logged in to your system and what they are doing. To do that, you have to get yourself familiar with number of different linux commands. In this guide, we will show you how to identify the user accounts on a linux system using commands like whoami, id, and more.

  • How To Install Xtreme Download Manager on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Xtreme Download Manager on Ubuntu 20.04 LTS. For those of you who didn’t know, Xtreme Download Manager is a free and open-source download manager. XDM is cross-platform and is available for Linux, Windows, and Mac. It is also compatible with all major web browsers such as Google Chrome, Mozilla Firefox Quantum, Opera, Vivaldi, and many popular browsers. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step by step installation of Xtreme Download Manager on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian based distribution like Linux Mint.

  • cpupower-GUI – A Simple Graphical Tool to Adjust CPU Frequency | UbuntuHandbook

    CPUPower-GUI is a simple graphical utility allows to change the frequency limits of your cpu and its governor. With the tool, you can easily change the frequency settings based on CPU core by adjusting the sliders and clicking apply button. You can also change the cpu governor profiles, Performance and Balanced. And the profiles can be selected easily from the system tray indicator menu.

  • Enable Timestamp For History Command In Zsh In Linux - OSTechNix

    Enabling timestamp in history command output helps us to find when a certain command is executed in Linux. We already have seen how to enable timestamp in Bash history. Today let us see how to enable timestamp for history command in Zsh shell in Linux.

  • How to Resize LVM Partition Inside an Extended Partition

    Resizing a logical volume in Linux is not very difficult and can be achieved through very straightforward approach.

Graphics: RenderDoc and Zink

  • RenderDoc 1.11 Released As The Leading Open-Source, Cross-Platform Graphics Debugger - Phoronix

    RenderDoc 1.11 is out as the newest feature release for this leading open-source graphics debugger supporting platforms from Linux to Windows to the Nintendo Switch to even Google's Stadia and supporting all major graphics APIs. 

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  • Mike Blumenkrantz: Starting Over

    Up until now, I’ve been relying solely on my Intel laptop’s onboard GPU for testing, and that’s been great; Intel’s drivers are robust as hell and have very few issues. On top of that, the rare occasions when I’ve found issues have led to a swift resolution. Certainly I can’t complain at all about my experience with Intel’s hardware or software. But now things are different and strange because I received in the mail a couple weeks ago a shiny AMD Radeon RX 5700XT. Mostly in that it’s a new codebase with new debugging tools and such. Unlike when I started my zink journey earlier this year, however, I’m much better equipped to dive in and Get Things Done.

  • Zink OpenGL-On-Vulkan Development Now Being Done On RADV With Navi GPU

    Mike Blumenkrantz who has spent most of the year working on the "Zink" Gallium3D code for allowing universal OpenGL over Vulkan translation and took this Mesa code to OpenGL 4.6 compatibility and in some cases 90%+ the performance of a native OpenGL driver is now working on Zink development from a Radeon Navi graphics card with the RADV driver, which may in turn help uncover bugs and areas of optimizations for the open-source Radeon driver stack.  Blumenkrantz, who is now being funded by Valve as another Linux graphics driver developer and at least for now will continue devoting significant amounts of time to Zink, has switched his development system from using Intel graphics with the ANV Vulkan driver to now in large part using a Radeon RX 5700 XT "Navi" graphics card with RADV. 

Why Aren’t Viruses a Problem on Chrome OS?

Chrome OS has a reputation for being virus-proof. Google likes to boast about how secure its operating system is compared to others. Are Chromebooks really immune to viruses, though? And, if so, how do they achieve this? Allow us to explain. First, let’s consider what a computer virus actually is. Viruses fall under the umbrella of “malware.” They’re destructive because they inject a code into a file (usually, one that’s executable), and when that file is run, the malicious code is released. Once the code is released on your system, it can do any number of malicious things, like destroy data, overwrite files, or even replicate itself and spread to other systems. Read more