The hard drive
without it cells cannot function
They are the files that your computer call on to start up, or "boot." without these, the computer cannot function properly.
Because then you don't have anything to do with your computer. Software is the applications on your computer.
If you cannot delete it, it is usually important.
All hardware components are important. A computer cannot operate without a power supply, processor, hard drive, mother board, and all other pieces of hardware necessary for it to function. So they are all important.
You cannot get free Gems on Clash of Clans without a computer.
You cannot download Chrome, without your computer's support. It is what you are installing Chrome at.
You cannot use Wacom Cintiq 13HD without a computer. This will have to be downloaded to a computer in order for this to be used.
it cannot function well
You are the center, the core. It cannot function without you.
Both are vital and inseparable to a computer. Without software, the computer cannot do any useful work. Without hardware, the software has nothing to run it.
Without disassembling the computer, you cannot. Go to a computer repairman, and ask him if he can get files off it, or make it turn on.