People also have heard of brokers who are legally licensed authorities from stock exchanges to provide trade assistance to traders who link traders with stock exchanges. Without licensed broker an online trading is not possible. Online stock brokers who are members of stock exchanges provide guidance to investors of their investment in stocks and link them to stock exchanges where companies are listed willing to sell their stocks publicly. Investors having good knowledge of stocks trading only looking for an account opening facility or broker help who place their order to stock exchanges through by online system or by phone. Investors without knowledge or interest in stock exchanges overall market trading and only interest in making money usually rely totally on brokers to invest their money in stocks and earn profits for them. Brokers act an agent and get lot of financial details from investors and then according to their experiences and knowledge invest money of investors in particular stock to earn a suitable profit for an investor. In short, we can say brokers are main body who spend plenty of time in building clients who are willing to invest and companies listed with stock exchanges.Here the most interesting thing in trading stocks online is not just ends up to brokers rather there are few things which every investor have to know before going to invest their precious money online in stocks. One main and most necessary thing which every investor should have to know is how the stock exchanges conduct such complex trading online. Stock Exchanges where lot of publicly trading companies stocks are listed uses good and well designed computer systems which are responsible for conducting trade for buyers and sellers. Stocks exchanges have lot of computerized systems for millions of brokers inside and all over the world. Online brokers have their own well designed computer system for taking orders of investors and for conducting payments of money for buying and selling of stocks. Brokers with their own system for order placement usually help them in keeping track of customer’s financial records and allow them to buy or sell stocks by their own will. Brokers track each customer’s transactions and see whether customers are not violating the terms and conditions and also their systems not allowed customers to buy stocks more than their financial money in their accounts. 
Stocks exchanges having their specific place within trading cities of a country where market makers and brokers have an access to the well designed system. Exchanges have a computer system that match buyer and sellers prices and usually connect them to a final point which is a matching engine. Besides, stock exchanges also provides lot of other services like record keeping and backup services, they also provide one of the main service is that price quote service. With price quote service stock exchanges keep record of all buying and selling stocks of companies and show their prices on a single platform which allows brokers to inform their customers of every minute price of share within trading time and trading week. Exchanges got buyers and sellers bidding through brokers and their highly system quickly matches the buyers and sellers price and give information back to brokers and then from brokers back to investors which results in the final transaction between buyers and sellers.Sellers got their selling price through matching engine of stock exchanges and buyers buy stocks of their interested price which they are in fact willing to buy. Too many sellers and too many buyers often meets at one price where both willing to sell and buy stocks. Investors without or little help of brokers must be very well familiar with the overall trading platforms used for buying and selling stocks and as well have fully knowledge of overall stocks markets and their trends. Furthermore, well knowledge of past share prices of stocks and future predictions of their rise or fall in prices. Without proper knowledge and trading investment may be very risky for some investors. Getting full knowledge of overall all stocks trading ways is really necessary for earning good profit through stocks.
