- How to Check CPU and GPU Temperature (Windows, macOS, Linux)
Built-in ways to read CPU and GPU temperature: Task Manager, nvidia-smi, lm-sensors and powermetrics, plus what Tjunction max means and how thermal throttling works. - How to Check SSD Health: smartctl, PowerShell and Windows Settings
Read your SSD's own health data: smartctl -a, Get-StorageReliabilityCounter, the Windows drive health page, and what Percentage Used and Available Spare mean. - How Much RAM Do I Need? Measure It Instead of Guessing
Work out how much RAM you need from what you actually run: OS minimums, how to read Task Manager, Activity Monitor memory pressure and free -h, plus dual-channel. - SSD vs HDD vs NVMe: What the Difference Actually Is
SATA SSD, NVMe SSD or hard drive? Interface speed limits (SATA 6 Gb/s vs PCIe x4), M.2 SATA vs M.2 NVMe, TBW endurance, and when an HDD is still the right buy. - USB-C vs Thunderbolt: Connector, Speed and Power Explained
USB-C is a connector shape, not a speed. What USB 5/10/20/40/80Gbps mean, how Thunderbolt 3, 4 and 5 differ, cable wattage, and how to tell what a port does.
Hardware
Storage, memory, CPUs, GPUs, ports and keeping a computer healthy.