This post is an introduction to operating systems (OSs) and an index for other posts with topics related to operating systems. An OS manages the computer hardware resources, so it is important to understand the different hardware components within a…
A partition table or partition scheme is a resource that allocates all partitions within the system. Type of partition table: MBR Master Boot Record (MBR) is older than GPT. GPT Each partition within a GUID Partition Table (GPT) uses a…
Unix-like operating systems (OSs) are those that implements the interface and concepts originally introduced by Unix OS. This post tries to summarize the history of Unix-like OSs and explain relevant software concepts surrounding it. Software Concepts This sections reviews some…
Android is an open source operating system aimed for portable devices, but also present in desktop devices. Its kernel is a modified version of Linux kernel. Android was first released in 2008. This post is an introduction to the operating…
This post shares somes ideas about device management and device administration for operating system Google Android. Device Management Device Administration Android Device Monitor is a component of Android. You might also be interested in…
This post features some security hardening guides or baselines for operating system Google Android. The parent post of this article is Android Security. List of Android Hardening Guides This is a non-exhaustive list of Android Hardening Guides This hardening guides…
Ubuntu, with the default installation, is not able to play some popular videos and audio formats, like the ones from .mp3 audio files, .mp4 video files or streaming videos like YouTube. It is possible to configure Ubuntu to play them,…
There are many Linux distributions or distros. Linux Distribution Families Linux Distribution families featured on this post: Debian-based Debian was released in 1993. Debian was very close to the Free Software Foundation (FSF) during the 90s. Debian-based distros: Ubuntu was…
This post explains how to run software Zemax OpticStudio on Ubuntu. The Ubuntu version that was used for this tutorial was 22.10 (2022), and the Zemax OpticStudio was ZEMAX-EE Optical Design Program (2003). Instructions may vary depending on the version.…
Android is an OS for mobile and tablets developed by Google. This post comments different aspects of Android security, ranging from: Android Security Features Part of the security on Android devices depends on the device itself. Some Google devices like…