#1
21st November 2014, 01:49 PM
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Computer Science Papers for West Bengal School Service Exam
I have complete graduation in Computer Science and now wan to give West Bengal School Service Exam so please give me previous years question papers for preparation?
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#2
21st November 2014, 03:35 PM
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Re: Computer Science Papers for West Bengal School Service Exam
Here I am giving you some previous years question papers of West Bengal School Service Computer Science Exam for your prepration. a) Why should one study octal & hexadecimal systems when the digital machine understands only binary system? b) Simplify the Boolean equation (A + AB). c) Where do we use signed binary number? d) Convert decimal 1000 to octal and hexadecimal system. e) What is the utility of floating point representation of numbers? f) Write the truth table of 2-input Ex-NOR gate. g) How NOT gate function can be obtained from NOR gate? h) Explain where do we use MUX? I) What is the function of an Encoder? j) Define with example, a combinational circuit. k) Draw a labelled block diagram of a -ve edge triggered J-K Flip Flop. l) Explain difference between volatile and Non-volatile memories. m) Explain what you mean by secondary memories. n) What are the applications of D-Flip Flop? o) Where do we use DC PRESET and DC CLEAR terminals in Flip Flops? a) A resistor has a colour band sequence gray, blue, orange and gold. What is the range of its value so as to satisfy manufacturer’s tolerance? b) What do you mean by self inductance? c) Define turns ratio in a transformer? d) What do you mean by intrinsic semiconductor? e) Which is better in a rectifier circuit – vaccum diode or semiconductor diode? f) Which logic gate produces high output when both the inputs are same? g) What do you mean by Universal logic gates? h) Define Demultiplexer. What do you mean by flip flop? j) What is binary counter?. k) What is micro processing unit (MPU)? l) What is the direction of information flow in address bus in a microprocessor? m) What is the function of accumulator? n) Define opcode? o) What is the instruction to load the register B? a. Differentiate between data and information with suitable examples. b) Explain with example procedure to convert octal number to binary number. List two devices which can be used as input as well as output device. What do you understand by write protection of floppies and how is it done? e) What are the disadvantages of OMR? f) What do you understand by spooling? g) What is batch processing? h) Define multiprogramming. Differentiate between RAM and ROM. j) What is a cache memory? Distinguish between L1 and L2 cache. k) Differentiate between single user and multi-user system. l) If on the DOS prompt, ABC is typed and on the disk (say C:>), there are three files ABC.COM, ABC.EXE and ABC.BAT. Which of the three files will be executed? Why? m) What is warm booting? n) List four facilities provided by Internet through WWW? o) What is the role played by modem in networking? Detailed previous years question papers for preparation of West Bengal School Service Computer Science Exam. |