This is a Question Papers of Mumbai University for B.Sc.IT Student of Semester - I [Fundamentals of Digital Computing] (Revised Course). [Year - January / 2017] . . .Solution Set of this Paper is Coming soon..

1. F u n d a m e n t a l s o f D i g i t a l C o m p u t i n g
Q u e s t i o n P a p e r ( J a n u a r y – 2 0 1 7 ) [ R e v i s e d C o u r s e ]
1 | Page
M u m b a i B . S c . I T S t u d y
F a c e b o o k | T w i t t e r | I n s t a g r a m | G o o g l e + | Y o u T u b e
– Kamal T.
Time: 3 Hours Total Marks: 100
N.B.: (1) All Questions from 1 to 7 are Compulsory.
(2) Figure To right indicate the marks.
Q.1 Attempt Both The Question: (10 Marks)
(A) What is Operating System? Explain its types. (5)
(B) What is ROM? Explain various types of ROM. (5)
Q.2 Attempt Any Three From The Following: (15 Marks)
(A) What is Number System? Explain various types of Number System. (5)
(B) Perform following conversion operation:
(1111.10111)2 = (? )10 and (121)8 = (? )10.
(5)
(C) Solve following:
(1010.1100)2 ∗ (111)2 and (1110111)2 = (1001)2.
(5)
(D) Convert the following:
(176)10 = (? )16 and (762)8 = (? )16.
(5)
Q.3 Attempt Any Three From The Following: (15 Marks)
(A) Solve the given minterm using K – MAP and also draw Circuit.
𝑓(𝐴, 𝐵, 𝐶) = ∑ 𝑚 (0, 1, 2, 3, 5, 7)
(5)
(B) Explain Basic Gates using truth table and also draw circuit for them. (5)
(C) Prove Demograms Theorem using truth table. (5)
(D) Prove the following Boolean function using truth table (𝐴 + 𝐵) (𝐴 + 𝐵) = 𝐴. (5)
Q.4 Attempt Any Three From The Following: (15 Marks)
(A) What is Multiplexer? Explain working of 4:1 multiplexer. (5)
(B) What do you mean by Adder? Explain Half Adder Circuit. (5)
(C) What is Subtractor? Explain full Subtractor Circuit. (5)
(D) What is Demultiplexer? Explain. (5)
Q.5 Attempt Any Three From The Following: (15 Marks)
(A) Explain S-R Flip Flop. (5)
(B) What is Register? Name their types. (5)
(C) Explain concept of One Bit Memory Cell. (5)
(D) Explain D-Types Flip Flop. (5)

2. F u n d a m e n t a l s o f D i g i t a l C o m p u t i n g
Q u e s t i o n P a p e r ( J a n u a r y – 2 0 1 7 ) [ R e v i s e d C o u r s e ]
2 | Page
M u m b a i B . S c . I T S t u d y
F a c e b o o k | T w i t t e r | I n s t a g r a m | G o o g l e + | Y o u T u b e
– Kamal T.
Q.6 Attempt Any Three From The Following: (15 Marks)
(A) Explain Basic Organization of Computer. (5)
(B) Write short note on Hard Disk. (5)
(C) Explain concept of Cache Memory with the help of diagram. (5)
(D) What is Input Device? Explain any four Input Device. (5)
Q.7 Attempt Any Three From The Following: (15 Marks)
(A) State the advantages of Linux OS. (5)
(B) Explain the term Single User, Single Tasking and Multiuser and Multitasking. (5)
(C) Write notes on Real Time Operating System. (5)
(D) Explain Distributed Operating System. (5)