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Purism has published the full specifications for the Librem 5. Key hardware and features: Processor: i.MX8M (4 cores, 1.5GHz), GPU supports OpenGL/ES 3.1, Vulkan, OpenCL 1.2; RAM: 3 GB; Internal storage: 32 GB eMMC; MicroSD slot (supports memory cards up to 2 TB); 5.7" IPS TFT display with a resolution of 720×1440; Removable battery 3500 mAh; Wi-Fi: 802.11abgn (2.4GHz + […]
The InterSystems IRIS database management system supports interesting structures for data storage — globals. Essentially, these are multi-level keys with various additional perks such as transactions, fast functions for traversing data trees, locks, and its own language, ObjectScript. More about globals in the article series "Globals — the swords and sorcery for data storage": Trees. Part 1 Trees. Part 2 Sparse arrays. Part […]
1. Learn to Google Being a programmer means learning how to find answers to your questions. By mastering the art of effective Googling, you will save a lot of time spent on development. 2. Promise less, but deliver more than promised It's better to inform your team that a task will take three weeks and complete it in two, rather than the other way around. By following this principle, you will build trust […]
The Linux kernel 5.3 includes changes that add extra protection for ioctl calls related to the floppy driver, which has been marked as abandoned, indicating that testing will cease. The driver is considered outdated, as it is hard to find functioning hardware for testing — all modern external drives typically use USB interfaces. Meanwhile, […]
Security researchers from Armis have revealed information about 11 vulnerabilities (PDF) in the TCP/IP stack IPnet, used in the VxWorks operating system. The vulnerabilities have been assigned the code name "URGENT/11." These vulnerabilities can be exploited remotely by sending specially crafted network packets, and for certain issues, an attack may be possible even when accessed through firewalls and NAT (for example, if the attacker […]
In previous sections (1, 2), we discussed globals as trees; in this part, we will consider globals as sparse arrays. A sparse array is a type of array in which most values take on the same value. In practice, it is common to encounter extremely large sparse arrays such that it makes no sense to occupy memory with identical elements. Therefore, implementing sparse arrays is sensible […]
Beginning — see part 1. 3. Variants of structures when using globals. A structure like an ordered tree has various specific cases. Let’s examine those that hold practical value when working with globals. 3.1 Special case 1. A single node without branches. Globals can be used not only as arrays but also as regular variables. For example, as a counter: Set ^counter […]
The true database global variables — globals — have long been recognized, yet few know how to use them effectively or may not possess this superweapon at all. If globals are utilized for the specific tasks in which they excel, outstanding results can be achieved, either in performance or in simplifying problem-solving (1, 2). Globals are a special type of […]
In the search for ways to enhance the efficiency of energy sector enterprises and other industrial facilities that use equipment burning fossil fuels (steam boilers, hot water boilers, technological furnaces, etc.), the question of utilizing the potential of flue gases is not typically prioritized. Meanwhile, relying on existing calculation standards developed decades ago and established benchmarks for key performance indicators […]
Before the introduction of Google Assistant on the Android mobile platform, there was a feature called 'Voice Search,' which was closely integrated with the main search engine. In recent years, all innovations have centered around the virtual assistant, leading the Google development team to completely replace the 'Voice Search' function on Android. Until recently, interaction with 'Voice Search' could be done through the Google app, a special widget […]
The release of the Python library for scientific computing, NumPy 1.17, has taken place. This library is focused on working with multidimensional arrays and matrices and offers a large collection of functions implementing various algorithms related to matrix usage. NumPy is one of the most sought-after libraries used for scientific calculations. The project code is written in Python, with optimizations implemented in C, and it is distributed […]
Seven years after the last major release, version 2.3.0 of the GNU Stow package management system has been released, utilizing symbolic links to separate package content and related data into individual directories. The Stow code is written in Perl and, starting from this release, is distributed under the GPLv3 license (previously, the GPLv2 license was used). Stow features a simple and […]