Hello Friends my name is hardev singh and i am doing my B.tech from Thapar University Patiala where i am a student of computer engineering .In this article i am going to tell you about the computer organization and system architecture. Friends this is the time of computer and we all use computer in our daily life . Do you even know for a second how this small box can do our work automatically with just one click .For Understanding this you have to learn about the internal structure of the computer. our computer is made of various kind of hardwares like RAM,ROM,Hard disk and many more.