Partial preview of the text
Download DL Past 2080 question and more Exams Digital Logic Design and Programming in PDF only on Docsity!
= €SC114-2080(New) Tribhuvan University Institute of Science and Technology 2080 ed Bachelor Level / First Year/ First Semester/ Science Full Marks: 60 Computer Science and Information Technology (CSC 114) Pass Marks: 24 (Introduction to Information Technology) Time: 3 hours. (NEW COURSE) Candidates are required to give their answers in their own words as for as practicable. The figures in the margin indicate full marks, Section A Te (2x10 = 20) Attempt any TWO questions. 1. Explain hierarchy of different memory types along with figure. What are different types of read only memory? (4 +6) 2. Compare system software with application software. Explain different types of system software in brief. (+7) 3. List some benefits of using computer networks. Explain different types of data transmission media in detail. 3+7) Section B Attempt any Eight questions: (8x5 =40) 4. What is digital computer? Compare digital computers with analog computers. ; (1.5 + 3.5) 5. Explain each component of CPU in brief. (5) 6. Define hard copy and soft copy devices. List any six human data entry devices. ; 2+3 7. What is ASCII? Convert 0.2345 from Base 10 to Base 2. c + 3 8. Explain wearable computing in brief. (5) 9. Define database. What are the benefits of using databases? (1+4) 10. What are different characteristics of multimedia? (5) 11. Define cryptography. Why do we use firewall? ’ (1.5 + 3.5) 12. Write short notes on: a. Instruction Cycle @x25=5) b. BigData 1OST,TU CSC 115-2080(New) Tribhuvan University Institute of Science and Technology 2080 x Bachelor Level / First Year/ First Semester/ Science Full Marks: 60 Computer Science and Information Technology (CSC115) Pass Marks: 24 (C Programming) Time: 3 hours. (NEW COURSE) Candidates are required to give their answers in their own words as for as practicable. The figures in the margin indicate full marks. Section A Attempt any TWO questions. [2x10=20] 1. efine structure and nested structure. Write a program to find out whether the n™ term of the Fibonacci series is a prime number or not. Read the value of 'n from the user and display the result in the main function. Use separate user-defined function to generate n' Fibonacci term and to check whether that number is prime or not. [3+7] \ 2. Explain the relation to array and pointer. Differentiate between call by value and call by reference with a suitable progt : r ; = , 248] — a _} biterenite between source code and abject code. Create a structure named Book with : members Book_Name, Price and Author_Name, then take input for 10 records of Book and print the name of authors having the price of book greater than 1000. [3 +7] Section B Attempt any EIGHT questions [8x5=40] \A\ Describe the different types of I/O functions used in file handling with syntax’ (5] 5f Write a program to read PxQ matrix of integers and find the largest integer of each row and display it. [5] Na Write a program to calculate the factorial of a given number using recursion. [5] V1. Write a program to check wheather the entered word is palindrome or not. Ib) \3 List different types of operators and explain any three of themgs (5] \ lOST,TU 1 ee i ae €SC116-2080(New) Tribhuvan University Institute of Science and Technology 2080 x Bachelor Level / First Year/ First Semester/ Science Computer Science and Information Technology (CSC 116) (Digital Logic) (NEW COURSE) Full Marks: 60 Pass Marks: 24 Time: 3 hours. Candidates are required to give their answers in their own words as for as practicable, The figures in the margin indicate full marks. Section A Attempt any TWO questions. (2x10=20) 1. What is combinational circuit? Design a combinational circuit with four inputs lines that represent a decimal digit in BCD and four output lines that generate the 1’s complement of the input binary patterns. 2+ What is asynchronous counter? Design synchronous counter that counts the sequences of 0- 1-4-6-7 using T flip-flop. : ‘ <2 Smplement the Boolean function F(P,Q,R,S)= = (3,4,6,8,9,14) using: a. 8 to 1 multiplexer b. PLAY. c, Decoder Section B Attempt any EIGHT questions. (8x5=40) XY Perform the following operations: : a. (011101)2-(110011)2 using 2’s complement bd. (89344) 19-(98654) 19 using 9°s complement > If {(P,Q,R,S)= E (3,4,7,8,14) and d(P,Q,R,S)= £(1,6,9,13). Simplify it using K-map and design circuit using minimum number of NAND gates. 6 What is drawback of RS Flipflop? Explain D Flip Flop in detail with Logic Diagram, characteristics table and Characteristics equation, 7 Design a full subtractor with necessary tables and logic diagram. § What is shift register? Explain Abit SISO and PIPO with timing Diagram. 9. Design an asynchronous Mod 11 up counter using T flip flop. - 10. How race condition in JK flip flop can be resolved? Explain. ULWhat is decoder circuit? Design 3 to 8 decoder circuit. 12. Write short notes on: a. State Diagram b. Encoder c. Parallel Adder JOST,TU MTH 117-2080 (New) XX Tribhuvan University Institute of Science nnd ‘Technology 2080 x Bachelor Level / Virst Year/ First Semester/ Science Full Marks: 60 Computer Science and Information Technology (MTEL) Pass Marks: 24 (Mathematics 1) Time: 3 hours, (NEW COURSE) Candidates are required to their answers in their own words as for as practicable. ‘The figures in the margin indicate full marks, Section A (2 x 10 = 20), Attempt apy TWO questions: wire = (4,0,3) and @ = (-2,1,5), find |@[,30, + U and 2@ 4-58. (1-41-4142) Vite (b) Estimate the value of lim, ee [5] 2. (a) The area of the parabola y = a? from (1,1) to (2,4) is rotated about the y-axis, Find the avea of the resulting surface , [5] (b) Pind the solution of the equation y2dy = adx that satisfies the initial condition y(0)= 2. (5) 3,40) As dry air moves upward, it expands and cools. If the ground temperature is 20°C and the temperature at height of 1km is 10°C, express the temperature 7'(in °C) as a function of the height A (in kilometer), assuming that linear model is appropriate. (b) Draw a graph of the function in part (a). What does the slope represent? (c) What is the temperature ot a height of 2.5 km? [54+3-4-2] Section B (8 x 5 = 40), Attempt any EIGHT questions: i t dAtifegrate i a Vfa¥ 41 dry (5) 0 5, Patd the Maclaurin series expansion of f(x) =e at a = 0.~ (5) Find where the function f(v) = 324 — 42% — 122? + 5 is increasing and where it is decreasing « (5) Aina yifa+y=6ry, — (5) 8. Show that y = 2 — i is a solution of the differential equation xy’ 4: y = 2x. [5] Wrketch the graph and find the domain and range of the function f(x),= 2x —1.~ [5] on? {Q-Det termine whether the series PB waa converges or diverges . —~ (5) Ut f(2,y) = 3 + a2y3 = Qy*, find fx(2,1) and fy(2,1). — (5 — iad that the function f(a) = 2? 4+ /7 =a is continuous at a = 4. Daf pi y we” 1OST,TU PHY118-2080 (New)) _3-Galeulae the uncertainty in the momentum of an electron iPuncertainty in its position is | Ao m). [5] 10 A current of 50 A is supplied in a slab of copper 0.5 cm thick and 2 cm wide which is placed ina ser iaanelic field B of 1.5 T. The magnetic field is perpendicular to the plane of the slab and to the current, If the free electron concentration in copper is 8.4 x 10" electrons/m’, what will be the magnitude of the Hall voltage across the width of the slab? {5] 11, Sodium has a body-centered cubic structure with a one-atom basis, The density and the atomic weight Sof sodium are 0.971 g/em*and 23 p/mole, respectively. What is the length of the unit cube of the structure? {5} BAIT output of a digital circuit (y) is given by this expressior y=(C+BA)\A+E+D) where A, B, C and D represent inputs. Draw a circuit of above equation using OR, AND and NOT gate and hence find its truth table, [5] 1OST,TU 
