Question Paper:-Computer Science CLASS +2 MM:-50Marks allotted to each question are indicated against it.Note:-all questions are compulsory.State whether the following statement are true or false: 10*1=10a) OSS stands for open source softwareb) DSS stands for decision supremo system.c) PHP is a scripting language.d) Front end are used for data storage.e) Front end is a user interface where client can make a request.f) Proprietary software is the software that is freely available.g) API stands for application program interfaceh) JDBC stands for java development connectivityi) OBDC stands for open database connectivity.j) System is defined as a collection of people, machine and methods organized to accomplish a set of specific function.

2. What is a user interface? 4*1=4Or What do you mean by a system?3. Differentiate between proprietary software and free software. 6*1=6Or Differentiate between freeware and free software.4. What do you mean by inventory control system? Explain. 6*1=6Or What do you mean by pay accounting system?

5. Explain any three terms 7*1=7 OSS,FSF,OSI,W3C,FLOSS,GNU.

6. What do you mean by personnel management system? Explain 7*1=7Or What are the four building blocks of information system?

7. What do you mean by system development life cycle (SDLC)? 10*1-10Or What are the various symbols used during design a flowchart.

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