Because not all version of an OS will run on all hardware. For instance you can not run MacOS on normal PC hardware (it has to be an Apple manufactured PC). Also modern versions of Windows (eg Windows 7) will not necessarily run on old hardware and Old versions of Windows may nor work on new hardware.
It is imperative for you to switch off the computer before installing any hardware. You should also be sure to unplug your computer before touching the inside.
is the plan you follow before installing new hardware-
Just follow the directions that come with the hardware. Every piece of hardware I have added in the last 20 years had instructions on how to install the hardware. Be sure to read them COMPLETELy before starting to install anything. This ASSUMES the person has the documentation. If you want a more specific answer, then the question needs to be more specific as to which hardware that one is installing.
If there is an error, it can do a large amount of damage.
The expected lifespan for computer hardware before it starts to depreciate in value is typically around 3 to 5 years.
the purpose of testing hardware prior to installing an operating system is to check what the spec is on the system. if the hardware does not match the criteria of the spec then your computer may encounter errors on your hardware.
Before installing an operating system, you need to consider how big you hard drive is. You also need to consider what types of programs you will be using.
To ensure proper countersinking when installing hardware on your project, use a countersink bit that matches the size of the hardware's head. Drill a shallow hole at the installation site before driving in the hardware to create a flush finish. Be careful not to drill too deep to avoid damaging the surface.
No, but you should turn off and unplug your computer before opening it for any reason.
Yes, unless you use a separate partition.
Format your computer's hard drive
you computer will be slower than before you install ubuntu....