T o learn SQL Server the first most important thing is to learn about Windows Operating System. Here is a basic overview of what you should know about windows to learn SQL Server. Client and server: First of all we need to understand what are Clients and Servers. As the name suggests, clients are meant for requesting services and servers for providing services. It is not necessary to have separate hardware for residing client and server, it can be on the same hardware. When they are on different hardware they communicate with the help of network which can be either cable or wireless media. Components of Computer: Among the different components of a computer there are four components which you need to know before learning SQL Server as these are components that play a great role in the working of SQL Server. These components are: CPU RAM Hard disk Network CPU: In CPU we basically mean processor whose speed is measured in GHz(Giga Hertz). If we talk about pr...