PGDCA MSCCS-01 MCA-101
June Examination 2016
MSCCS PGDCA MCA I Year Examination
Computer Fundamentals and System Software
Paper PGDCA MSCCS-01 MCA-101
Time 3 Hours Max. Marks 100
Note: The question paper is divided into three sections B and C. Write answers as per given instructions.
Section A 10 × 2 20
(Very Short Answer Questions)
Note: Answer all questions. As per the nature of the question delimit your answer in one word, one sentence or maximum upto 30 words. Each question carries 2 marks.
List the characteristics of computers.
Name some system software.
What do you mean by refresh rate of a monitor?
Draw the truth table of XOR-gate.
What is the purpose of system call?
What do you mean by critical section?
Convert (1011010)2 into
(viii) Define distributive law in Boolean Algebra.
457
PGDCA MSCCS-01 MCA-101 600 3 (P.T.O.)
PGDCA MSCCS-01 MCA-101 600 3 (Contd.)
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What is unicode?
What do you mean by hard copy?
Section B 4 × 10 40
(Short Answer Questions)
Note: Answer any four questions. Each answer should not
exceed 200 words. Each question carries 10 marks.
Compare primary and secondary memory. Also give example.
Explain the working of modem with neat diagram.
Write short note on Optical Character Recognition
Device.
What is EBCDIC code? How it is different than ASCII code?
What do you mean by process? Discuss various states of a
process and state transition.
Write short note on Demand Paging.
What do you mean by deadlock? Also write necessary
conditions of deadlock.
Discuss various types of printers.
PGDCA MSCCS-01 MCA-101 600 3
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Section C 2 × 20 40
(Long Answer Questions)
Note: Answer any two questions. You have to delimit your each
answer maximum upto 500 words. Each question carries
20 marks.
10) What do you mean by open source software? Explain the file
system of Linux.
11) Consider the following set of process, with the arrival times
and the CPU burst times given in milliseconds.
Process Arrival time Burst time
P1 0 5
P2 1 3
P3 2 3
P4 4 1
What is the average turnaround time for these processes
with the preemptive shortest remaining processing time frist
algorithm?
12) What is MS-DOS? Discuss various internal and external
commands in MS-DOS.
13) What are the various methods to simplify the Boolean
expression? If R are Boolean variables, then simplify
(PQ P.R) R Q).