Operating Systems

From Bare Metal to Containers: A Developer's Guide to Execution Environments

From Bare Metal to Containers: A Developer’s Guide to Execution Environments

Ever had that dreaded ‘but it works on my machine!’ moment? The culprit is often a subtle difference in the execution environment—the …

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Beyond 127.0.0.1: You Own 16 Million Loopback Addresses

Beyond 127.0.0.1: You Own 16 Million Loopback Addresses

Many developers use localhost and 127.0.0.1 interchangeably, assuming loopback is limited to a single address. However, the IPv4 specification …

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The `1ms` Lie: Why `sleep()` Breaks Real-Time Code—Resolution & Jitter Fixed

The 1ms Lie: Why sleep() Breaks Real-Time Code—Resolution & Jitter Fixed

If you’ve ever built a real-time system, a data simulator, or a game loop, you’ve tried using sleep() to control timing. And if …

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How a Program Binary Becomes a Running Process

How a Program Binary Becomes a Running Process

Have you ever stopped to think about what really happens when you run a program? Not just clicking “Run” or executing a command in the …

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