If you’re looking to upgrade or replace your computer, take the same approach as a physician; that is, diagnosis then treatment. Do this:

•     Mac owners: Apple Menu > About this Mac
•     PC owners: Open Start Menu and enter “cmd” in the box.
At the command prompt, run: systeminfo.exe

If you see dates from before the Obama presidency, it’s time for a new computer. Or perhaps your computer isn’t that old but is sluggish and has frustrating freeze tendencies. Programs like PC Pitstop will identify the exact causes of your computer lag.

Whatever the case may be, it’s important to understand your options as you research upgrades and replacements.