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In this tutorial, we will see how we can do additions to signals, multiplying signals (modulation), and applying some basic mathematical functions to see their effect on the original signal.

Why would you spend your free time contributing to open source, especially in the PHP community? Doesn't it seem boring to spend hours every week, or sometimes hours every day putting your time into a project, or into community work? Well, my answer is no! There are endless reasons why it is so much fun to be part of a community, and how we keep each other entertained to keep the sparks lit up in an open source community. read more

Netdata is a real-time resource monitoring tool with a friendly web front-end developed and maintained by FireHOL. With this tool, you can read charts representing resource utilization of things like CPUs, RAM, disks, network, Apache, Postfix and more. It is... Continue Reading →

With the EU's GDPR coming into effect in under two years, ignorance of ‘hidden' data could result in monstrous fines for UK companies, according to new research from Ground Labs. That research adds that such ignorance could increase risks of identity fraud with the billions of personal information residing on PCs, servers and mobile devices.

In this interview I talk with Shauna Gordon-McKeon about her involvement in the free software and free culture communities, her day job, and her upcoming talk Free culture in an expensive world.

A fundamental design feature of Unix-like operating systems is that many of a system’s resources are accessible via the filesystem, as a file. For example the “procfs” pseudo-filesystem offers us access to all kinds of valuable treasures. In this series of articles, I’ll provide an overview of your system processes, explain how to use the “ps” command, and much more.

The impact of a data breach has more significant consequences than ever before, costing organizations between $400 to $500 billion a year, partly due to the expansion of the Internet of Things and the evolving creativity of cyber criminals in today's complex threat landscape.

A recent article on Slashdot points out with some chagrin that the Department of Homeland Security and Department of Veterans Affairs in the United States still use COBOL, originally invented in 1959, based on work by the late Rear Admiral Grace Hopper. The implication is—and has been for some years in the IT community—that COBOL is a completely dead language. Not so! read more

We recently interviewed Arthur Boliva on how he uses Fedora. This is part of a series on the Fedora Magazine in which we profile Fedora users and how they use Fedora to get things done. If you are interested in being... Continue Reading →

In this week's edition, we take a look at a new headset from OSVR, Google's DeepMind playing Montezuma's Revenge for rewards, and two new games out for Linux. Open gaming roundup for June 12-18, 2016 Razer announces HDK2 VR headset supporting OSVR OSVR is an open source ecosystem supporting multiple hardware brands. HDK stands for Hacker Development Kit, but Razer claims the new headset is for developers and gamers alike. read more

Title: This Week in Linux News: OSS Opportunity For New Grads, Why Cloud Foundry is Gaining Traction, & More17 JunLearn more

Open source knowledge is very valuable in today’s job market. The 2016 Open Source Jobs Report from The Linux Foundation clearly showed that hiring managers are placing much value on open source cloud, networking, and security skills. It also showed that DevOps is emerging as a red hot job category.

In this week's Top 5, we highlight tips for getting started with GitHub, alternatives to Adobe Acrobat for PDFs, how to secure your Linux system, thoughts on the Google v. Oracle case, and how to get started using IRC for chat. Top 5 articles of the week 5.An IRC quickstart guide read more

The availability of fairly affordable CNC machines and replacement controller boards with fast microcontrollers and network connectivity makes it a great time to get into CNC. Many options are available including basing your CNC on a 3040 from China or using open source software and open hardware to run the show...

In this week's edition of our open source news roundup, we take a look at 3D-printed lattice for cell culture, open source materials for college courses, and more! Open source news roundup for June 12-18, 2016 read more

This is my October 2007 "SuitWatch" newsletter for Linux Journal. I believe it's the first place I floated the "giant zero" metaphor for the Internet, which I've made a bit of a thing about since then.

PostgreSQL (most people call it Postgres) is an advanced object-relational database management system (ORDBMS). Postgres is an open source database server with more than 18 years of active development which makes Postgres the best choice for enterprise-class applications. In this tutorial, I will show you how to install Postgres on your own server with OpenSUSE Leap as operating system. Then I will install phpPgAdmin so we can manage our Postgres database from the web browser.

A new version of Git was released this week, bringing a number of improvements that will be a welcome sight to software developers.

Aaeon has added extended temperature support to seven embedded boards, including a “PICO-BT01” Pico-ITX SBC with Bay Trail CPUs and optional add-on boards. Aaeon has added wider temperature range options to a number of its embedded SBCs and COMs. Most of these boards originally came out before LinuxGizmos (now HackerBoards) was launched in early 2013. […]

Shortly after the Fedora 24 release, you can upgrade to the newest Fedora Workstation using the built-in Software app (gnome-software). The Software app has always provided the ability to process updates. But to upgrade to the latest Fedora — for example, Fedora 22 to... Continue Reading →