Once we understand the basics of stock, its necessary to understand how the trade takes place.
As an individual, we can tarde in the stock market with the help of brokers. Brokers help us place the orders in the exchange, who inturn places us in the buy / sell queue. Once the order details match that of the buyer or seller, the trade is executed. The trade is settled post the trading hours.
We need to anaylse the market before investiong. Techinical analysis backed by risk reqard ratio is very important. Based on teh analysis, we can take either short, long position in the market.