System Architecture

I thought of explaining my learning on System Architecture to my brother Abhinav.

Following is the conversation:

Me: Hi

Abhinav : wasup!!

Me: Howz your college rolling?

Abhinav : Its going well.

Me : hmm..I have got an assignment to explain system architecture in BIS to one person.

Abhinav : BIS???

Me : Business Information Systems

Me : And obviously you will be my guinea pig as always..hahahaa

Abhinav : Okies!!!

Abhinav : Hope you dont kill me in your experiment..lols

Me: So lets start. It is the representation of a system in which the hardware and software components are designed to work together in particular fashion. It helps us in identifying that which software or application is running on which hardware.

Abhinav : Can u explain more on it.

Me: In simple words, the physical device which we can touch is a hardware and software is a written program which is stored in your system.

Abhinav : Ok. Now I am getting something.

Me: The architecture or the way they are put together to work can be majorly done in 3 ways: single tier, two tier and multi-tier or n-tier.

Single Tier is a system where both the data and the application is on the same machine. For eg: your laptop. Abhinav : That was simple to understand. What about the rest architectures?

Me : Next comes the two tier way. In this, database and application are on different platform, which means that the data is stored in a server and application is stored in individual machines .The user’s machine is connected to the server through LAN.

Abhinav : Ok. What about the last one?

Me: Multi tier is divided into three parts : presentation tier, data access tier and the data tier. Most of the data takes place between the data server and the application server. Client software on the machine is replaced by web browser. The client and the server is connected through internet .It is very cost effective and mostly used at corporate level.

Abhinav : Okies. I got some idea about system architecture. I will try reading more in detail about this. Thanks for the update.

Me: I hope u read more and understand it better.

Me: Take care and have fun..

Abhinav : Yup!! bye.