"Leave your computer on all the time, or shut it off when it's not in use; does it really make a difference? If you've been asking yourself this question, then you'll be happy to hear that you can choose whichever way you want. You just need to understand the ramifications of your choice and take a few precautions to ensure you get the longest life you can from your computer.
The most important precaution is to add a UPS (Uninterruptible Power Supply), no matter which method you choose.
A UPS can protect your computer from many of the dangers it's likely to face.
The Things That Can Harm Your Computer
All of the parts that make up your computer have a limited lifetime. The processor, RAM, and graphics cards all experience aging caused by, among other things, heat and temperature. Additional failure modes come from the stress of cycling a computer on and off.
But it's not just your computer's semiconductors that are affected. Mechanical components, such as the ones in hard drives, optical drives, printers, and scanners, are all affected by the power cycling they may undergo when your computer is turned off or on. In many cases, peripherals, such as printers and external drives, may have circuitry that senses when your computer is powered on or off, and initiates the same condition, turning the device on or off as needed."
Check out the full article at: https://www.lifewire.com/shut-computer-down-or-not-4135231