No.
of Printed Pages : 6 BCS–011
BACHELOR OF COMPUTER
APPLICATIONS (BCA) (REVISED)
Term-End Examination
December, 2023
BCS-011 : COMPUTER BASICS AND
PC SOFTWARE
Time : 3 Hours Maximum Marks : 100
(Weightage : 75%)
Note : (i) Question No. 1 is compulsory and carries
40 marks.
(ii) Attempt any three questions from the
Question No. 2 to 5.
P. T. O.
[2] BCS–011
1. (a) Convert the following as asked : 6
(i) (0.0125)10 to equivalent binary
(ii) (10011111)2 to equivalent decimal
(iii) (FA5)16 to equivalent binary
(iv) (1001 0110 1110)2 to equivalent
hexadecimal
(b) A computer system has large RAM, still it
requires secondary storage. Why ?
Explain. 4
(c) Explain the use and characteristics of the
following input-output devices : 4
(i) Bar Code Reader
(ii) Speaker and Microphone
(d) Explain why an operating system is needed
in a computer system. Differentiate
between the system software and
application software. 5
[3] BCS–011
(e) What is an algorithm ? What are the three
control statements in the context of
algorithm ? Explain each statement with
the help of an example. 7
(f) List any two features of a spreadsheet
software. 2
(g) Explain the ring topology of local area
networks. List its advantages and
disadvantages. 6
(h) Explain the purpose of any four folders
that are available in an email software. 4
(i) List any four features of a social
networking website. 2
2. (a) What are the different components of a
computer ? Explain the role of each
component with the help of a diagram. 6
P. T. O.
[4] BCS–011
(b) Differentiate between the following : 8
(i) CD-ROM and Hard disk
(ii) Seek time and Latency time in the
context of access time
(iii) Cache memory and Main memory
(iv) Transistor and Vacuum tube
(c) What is a port ? Explain the uses of
parallel port, serial port, universal serial
bus and SCSI port. 6
3. (a) Explain the three-tier client-server
architecture with the help of a diagram. 5
(b) What is multiprogramming ? How is it
different from batch processing ? Explain. 5
(c) Explain the concept of one-dimensional
and two-dimensional arrays with the help
of an example pseudo code of each. 5
[5] BCS–011
(d) Explain the features of word processing
application. 5
4. (a) Explain the characteristics of a Wide Area
Network. How is a WAN different to a
LAN ? Explain. 5
(b) What is the need of TCP/IP ? What is a
URL ? How is URL different to an IP
address ? Explain with the help of an
example. 5
(c) What is the role of a browser software ?
What is a search engine ? How does a
search engine collects information about
web page ? 5
(d) What are the characteristics of a WIKI ?
What are the different advantages of using
a WIKI ? 5
P. T. O.
[6] BCS–011
5. Explain the following with the help of a
diagram/example; if needed : 5×4=20
(a) Features of E-learning
(b) Perverse Software
(c) Features of project management software
(d) Different types of printers
(e) Disk checkers and disk defragmenters
BCS–011
