The use of Information Technology (IT) is well known. IT has turn into a must for survival of all business houses with growing information technology trends. Computer is main component of an Information Technology network. Todaycomputer technology has infused each sphere of existence of modern man. From medical-diagnosis to railway-reservations and from TV-programmes to satellite-launching, from matchmaking to criminal catching everywhere we witnesssophistication, elegance and efficiency possible just with help of computers. 

You will be introduced to concepts of a simple model of Instruction execution. This model will be improved in later blocks of this course. More details on these terms can be attained from further reading. We have also discussed about main developments at the time ofdifferent periods of computer history.