Answers: Purchase adjectives the components and put them together! Takes almost an hour. You'll stipulation to get sure you obtain:
* A suitcase & PSU
* Hard disk drive
* Motherboard
* CPU
As a minimum.
If you want to jump super-fly, later acquire a mobo short integrated nouns & graphics so you can select those yourself too.
You can bring back adjectives the components from here:
http://www.ebuyer.com
Their is no path to only explain "how to", you will carry the requisites here but rough troubleshooting and knowing how to connect everything properly is a talent you cram over time. I suggest you find a geek friend to backing you out.