Git and GitHub for Beginners: Your First Repository, Branch and Push
A hands-on Git and GitHub beginner guide with real terminal output: init, commit, branch, diff, merge, .gitignore, SSH keys and your first push.
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NTFS Explained: Features, Limits, Permissions and Repair
How NTFS works inside, the features admins use (ACLs, journaling, compression, EFS, shadow copies), its limits, and how to inspect and repair a volume.
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exFAT vs NTFS vs APFS/HFS+ vs ext4: Which File System to Use
NTFS, exFAT, APFS/HFS+ and ext4 compared, which operating systems can read and write each, and which to pick for USB drives, Macs and Linux servers.
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What Is a Hardware Abstraction Layer (HAL) and Why Does It Matter?
What the Hardware Abstraction Layer does, where hal.dll sits in Windows, how Linux and Android achieve the same goal, and why it matters for portability.
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History of Windows: Every Major Version From 1.0 to Windows 11
A dated tour of Windows from 1.0 to 11: the DOS-based line, the NT line, internal version numbers, and why NT won.
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Linux Distributions Explained: How to Choose the Right Distro
The main Linux families (Debian, Red Hat, SUSE, Arch), release models, popular distros compared, and a simple guide to choosing one.
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History of Linux: From a 1991 Hobby to Running the Cloud
How Unix, the GNU Project and a student hobby in 1991 became Linux, with the milestones from Debian and Red Hat to Android and containers.
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Free Software vs Open Source vs Copyleft: What the Difference Means
Free software, open source and copyleft explained: where they came from, the four freedoms, and how GPL, MIT and AGPL licences differ in practice.
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Bits, Bytes, KB, MB, GB, TB: Data Storage Units Explained
Bits, bytes and every unit up to petabytes, why 1 TB shows as 931 GB in Windows, and how to convert between megabits and megabytes.
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How a Computer Works: A Beginner Guide From Power Button to Screen
Follow one click from bits and transistors through boot, the CPU fetch-decode-execute cycle, memory and the operating system to the screen.
