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I compared virtual RAM with real RAM on my Windows PC - here's what the numbers told me

Rising RAM prices have made upgrading your PC more expensive. Virtual RAM is a less expensive way of boosting an older computer's performance. Virtual RAM has limited use cases because it can't match ...
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Your Linux system is secretly using your hard drive as RAM, and that's a good thing

It's not just a waste of disk space. It can speed up your system.