At first, we should know what kind of computer gadgets for comprising a computer and some other basic knowledge about computers, since we do not have any knowledge about computer, we would be cheated or coaxed by some merchants. Computer case: general parts are stored here; screen: for watching the working process of computer; keyboard and mouse: for imputing useful instructions into computer to let computer work for us; main board: for deciding computer performance; internal storage: for storing data for computers; CPU: center of computing and control of computers; display card: for transmitting data to screen; audio card: for transmitting sounds into loudspeaker box; rigid disc: storage volume of data; CD-driver: for installing some softwares into computers; power line: for supplying power into computer.
choose products of big brands
If we are not experts in computer and do not have too much knowledge about computer, while purchasing PC gadgets, you are advised to choose products of big brands, since big brands would be stable and reliable in quality, post-sale service, and anti-counterfeiting at all, thus big brands are our first choice.
check whether the gadgets are new
There are a lot of merchants who are not honest in the markets, and we should pay more attention when we are purchasing PC gadgets, thus we should check whether the products are new and whether the packaging is opened, if there is any traces of usage, we cannot take this products since they are non-renovated products.
make comparisons of the computer widgets you are going to buy
Before going to markets for buying some certain computer widgets, research on internet is quite important since there are many assessment articles on internet, thus by which we can make comparisons about price, remarks and quality of the computer widget and buy a proper one.