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How to Overclock Your Computer’s RAM

RAM often comes from the factory with a lower speed than the silicon is capable of. With a few minutes in your BIOS and a bit of testing, you can get your memory to run faster than the manufacturer’s specifications....

How to Use Pipes on Linux

Use Linux pipes to choreograph how command-line utilities collaborate. Simplify complex processes and boost your productivity by harnessing a collection of standalone commands and turning them into a single-minded team. We sh...

How to Use the chmod Command on Linux

Control who can access files, search directories, and run scripts using the Linux’s chmod command. This command modifies Linux file permissions, which look complicated at first glance but are actually pretty simple once...

What to Do When Your Mac Won’t Shut Down

Macs are like any other computer. Sometimes they won’t start up, and sometimes they won’t shut down. If your Mac is refusing to shut off, here’s how to shut it down anyway—and, hopefully, permanently f...
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