How many computers are offering?
They are offering five computers

What is the price of the cheapest computer?
The computer is cheaper than 2500

What is the price of the computer and what is more expensive?
The price is 4000 and is a computer Samsung N150

What computers are the same price?
Packard Bell computer and computer dats uk/031 Lenovo Idea Pad S10-2

Operating system "that have these computers?
The computers have the Windows 7