Tech Docs
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Landauer’s Principle is a fundamental law of physics that establishes the minimum possible amount of energy required to irreversibly change or erase one bit of information in a computational process. This principle is rooted in the second law of thermodynamics, which states that any logically irreversible operation, such as resetting a bit from one state to…
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The taskkill command is a powerful Windows OS CLI tool that allows users to forcefully terminate running processes directly from the terminal. Unlike the Task Manager’s graphical interface, taskkill gives users precise control over which processes to end, either by using the process name (also called the image name) or its unique process ID (PID).…
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For the past month or so there were several bitaxe devices at my micro data center that indicated they were in a state of overheating. You will see a tab on your dashboard that says “Bitaxe has overheated – See settings.” It is likely that your machine needs a firmware update. While I did create…
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Memory modules come in different physical sizes depending on the device they’re intended for. DIMM (Dual Inline Memory Module) is the standard memory format used in desktop computers, while SODIMM (Small Outline DIMM) is the compact version used in laptops, mini-PCs, and some all-in-one systems. Both types serve the same function—providing volatile memory that supports…
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If your SupraHex unit is not appearing on your mining pool dashboard, it’s likely due to outdated or incompatible firmware. To resolve this issue: Check for the latest firmware release by clicking the Check in the settings section of your miners graphical user interface (GUI). After the Download of the “esp-miner.bin” and “www.bin” files upload…
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The /var directory in Linux is where variable, constantly changing files are stored. It contains logs, mail spools, databases, temporary caches, and other files that grow or update as the system runs. Subdirectories like /var/log hold system logs, /var/spool manages queued jobs like print tasks or mail, and /var/tmp temporarily holds files that should survive…
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Economist Peter Schiff has publicly criticized Michael Saylor’s characterization of Bitcoin as “digital energy.” Schiff questioned the practicality of using Bitcoin to generate power, contrasting it with crude oil’s essential role in preventing mass starvation. Michael Saylor, Executive Chairman of MicroStrategy, has previously described Bitcoin as “digital energy,” suggesting that it conserves energy in cyberspace…
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The mkfifo command in Linux is used to create named pipes, also known as FIFOs (First In, First Out). Unlike regular files, a FIFO behaves like a pipe that allows data to flow between processes. You can think of it as a communication tunnel where one process writes data and another reads it. For example,…
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The locate command in Linux is used to quickly search for files by name across the entire filesystem. Unlike the find command, which actively searches through directories in real-time, locate uses a prebuilt index from a database (usually updated with the updatedb command). This makes it incredibly fast and efficient. For example, typing locate passwd…
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In Linux, path shortcuts help users move through the file system quickly and efficiently. These symbols are used in the terminal to reference common directory locations without typing the full path. These shortcuts are essential for navigation, scripting, and system administration. Mastering them helps Linux+ candidates work faster and with more precision across different directories.…
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The /opt directory is used in Linux for installing optional or third-party software that is not part of the default package management system. Many commercial applications or special-purpose tools are installed into /opt to keep them separate from system-managed software. If you install proprietary software like VMware or a custom application, it may place its…
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The /mnt directory in Linux serves as a traditional location for temporarily mounting filesystems. Unlike /media, which is mostly used for automatic mounting of USBs and other external devices, /mnt is primarily used by system administrators for manual mounts during maintenance, recovery, or troubleshooting. When you need to access another drive or partition for testing…
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