Software design sits at the technical kernel of the software engineering process and is applied regardless of the development paradigm and area of application. Design is the first step in the development phase for any engineered product or system. The designer's goal is to produce a model or representation of an entity that will later be built. Beginning, once system requirement have been specified and analyzed, system design is the first of the three technical activities -design, code and test that is required to build and verify software. The importance can be stated with a single word "Quality." Design is the place where quality is fostered in software development. Design provides us with representations of software that can assess for quality. Design is the only way that we can accurately translate a customer's view into a finished software product or system. Software design serves as a foundation for all the software engineering steps that follow. Without a strong design we risk building an unstable system - one that will be difficult to test, one whose quality cannot be assessed until the last stage.

Though computer word is very common these days in India and almost this gadget is holding good position every house may be poor or rich. Students are very much dependent upon this machine being this is a subject in school education. Teachers often advise students to get assignment done on computer but yet not in every school. Most of the schools are going with smart education where e-books are used. Computer may be common in India yet unable to develop a taste of doing with the system. Every user is dependent on technicians to get their system operation. Some times operating system sets down and other times hardware lost its function. To get a new computer is not a problem but to maintain is the a cause of concern. We being playing with computer since 1987, understand the full operation and understand the functional language. To make aware of the parts, assembly section and some what repair of the gadget at home as how to do it. Some of the components not used these days are not included in this book like floppy drive, floppy disks etc. One should know the computer one is going to buy for use at home, office.

These days one can not think life without computer. Every moment is concerned of this gadget for its beautifulness and dependency from a childhood to end of life. This may be for entertainment to education and at later stage life support gadgets. We can be aspect any thing with computer it is users perception. Though computer hardware is the collection of various physical components of the computer like the computer itself, input/output devices, printers and other peripheral devices yet user feel its interaction. Two computer can be put to talk each other and this is what is Net Working. A computer network, often simply referred to as a network, is a collection of computers and devices connected by communications channels that facilitates communications among users and allows users to share resources with other users. In net working Communication of data propagation and processing of signals are made transmitting and receiving the signals is labeled Data Communication.

Since the incoming of computer in this world there has been craze to peep into another computer whatever the operating system may be. Computer professionals tried their best to do this and their labor came out with positive results. At every stage the motive behind with the investigators remained to share the information of one computer with another. Basically Networking or connecting computers together to share information, has long been one of the more difficult areas of basic computing to get a grasp on, mainly because it is one of those points at which the generally friendly user interface of your average Windows box starts showing cracks, or possibly gaping holes ready to swallow up the unsuspecting user.

Stress is a feeling that's created when we react to particular events. It's the body's way of rising to a challenge and preparing to meet a tough situation with focus, strength, stamina, and heightened alertness. The events that provoke stress are called stressors, and they cover a whole range of situations-everything from outright physical danger to making a class presentation or taking a semester's worth of your toughest subject. We all experience episodic stress - getting ready for a major exam, completing an important paper, perhaps getting ready for an important interview. However, a continuous "state" of stress should not become a way of life. A student's life in India is subjected to different kinds of stressors, such as the pressure of academics with an obligation of success, uncertain future and difficulties envisaged for integration into the system. These students face social, emotional and physical and family problems which may affect their learning ability and academic performance. Some of them find it hard to cope with the stress and lag behind, while others see the pressure as challenge to work harder.