Since it is new, there are no files there that would make a PC perform slow. Every computer is supposed to perform fast. If not, return it and change to another computer.
Networking of computers is a fast changing subject. There is no 1 answer
Microsoft is making the new surface computer. Check out more at this website: http://www.microsoft.com/surface/
If you mean processing cores (the brain of the computer that makes everything talk to eachother) it depends on the computer. Most have one or 2, the higher end computers have 4 to 8. Super fast computers have 16 but cost thousands of dollars.
Apple makes fans for computers. This is why there is a plethora of Mac fanatics.
Friendly's.
first generation computers were not fast and were less reliable.
analog computers
How fast a computer is or can proccess
the transmission makes it go fast
computers
asus
Typical home computers can have 4-8 GB of RAM.. (very new one can have up to 12 GB). Large servers can usually have hundreds of GB RAM, and with clustering up to several thousand GB RAM. The computer has several requirements to run fast, the most basic: processor: makes application and calculations fast graphics card: makes games and graphics fast memory: allows you to have lots of programs or large datasets active at one time without the computer slowing down.