Nothing Special   »   [go: up one dir, main page]

BCS 11

Download as pdf or txt
Download as pdf or txt
You are on page 1of 5

No.

of Printed Pages : 5 BCS-011

BACHELOR OF COMPUTER APPLICATIONS


(BCA) (Revised)
Term-End Examination
June, 2022

BCS-011 : COMPUTER BASICS AND PC SOFTWARE

Time : 3 hours Maximum Marks : 100


(Weightage : 75%)

Note : Question number 1 is compulsory and carries


40 marks. Attempt any three questions from the
rest.

1. (a) Perform the following operations : 5


(i) Convert (235)10 to binary
(ii) Convert (10·3750)10 to binary
(iii) Convert (1011101)2 to decimal
(iv) Convert (FABC)16 to binary
(v) Convert (A5)16 to decimal

(b) What will be the storage capacity of a


2·5 inch diameter disk pack having 4 plates
with each surface of the plate having
2048 tracks and each track having
512 sectors ? A sector can store 1024 bytes
of data. 3
BCS-011 1 P.T.O.
(c) Explain the von Neumann Architecture
with the help of a diagram. 4
(d) Explain two features of the software that
will be needed for each of the following
operations : 6
(i) Keeping track of files and directories.
(ii) Translating high level language
program to machine language.
(iii) Identify and remove computer virus.

(e) Write an algorithm and draw the


flowchart for finding the sum of the first
10 odd numbers. 7

(f) Given the following IP addresses and


Subnet mask, find the Net-ID : 3
(i) IP address 10.1.5.7 with subnet mask
255.0.0.0
(ii) IP address 192.168.1.05 with subnet mask
255.255.255.0

(g) Explain the purpose of the following


Networking devices. : 6
(i) Network Interface Card
(ii) Modem
(iii) Repeater

(h) List any six advantages of e-learning. 3

(i) List two advantages and one disadvantage


of using Inkjet Printer. 3

BCS-011 2
2. (a) Define the term Instruction in the context
of a computer processor. Explain the role of
control unit for execution of an instruction. 5
(b) Differentiate between the following : 10
(i) Static RAM and Dynamic RAM
(ii) RAM and ROM
(iii) Hard disk and Magnetic tapes
(iv) DVD and CD
(c) What is the role of a port in a computer ?
Explain the use of (i) Parallel port, and
(ii) Serial port in a computer. 5

3. (a) Explain the terms client and server in


the context of client/server architecture.
Explain the three-tier client/server
architecture with the help of a diagram. 5
(b) What is an Open-source Software ? List
any two objectives of an Open-source
movement. List the name and purpose of
any four Open-source Software. 5
(c) Define the following in the context of an
Operating System : 6
(i) Batch Processing
(ii) Graphical User Interface
(iii) Multiprogramming
(iv) Time-Sharing System
BCS-011 3 P.T.O.
(d) Given the values of three variables as
x = 5, y = 8 and z = 13, what would be
the output of the following expressions in
C programming language ? 4

(i) x==y
(ii) (x + y) = = z
(iii) y < z
(iv) x ! = z

4. (a) Explain the terms in the context of


Computer Network : 6
(i) Half Duplex
(ii) Channel
(iii) Packet Switching
(iv) Bandwidth

(b) Explain the characteristics of Local Area


Networks. How are LANs different from
WANs ? 5

(c) What is a URL in the context of Internet ?


Explain with the help of an example. Also
explain the role of DNS with the help of an
example. 4

(d) Explain the characteristics of the following : 5


(i) WIKI
(ii) Social Networking

BCS-011 4
5. Explain any five of the following with the help of
an example or a diagram, wherever required : 54=20

(a) Security Threats on Internet

(b) TCP/IP Model

(c) Object-Oriented Programming Language

(d) Perverse Software

(e) Subroutine and Functions

(f) Memory Hierarchy

(g) Classification of Printers

(h) Features of Spreadsheet Software

BCS-011 5 P.T.O.

You might also like