# BCS-011 Computer Basics and PC Software Solved Assignment 2018-2019

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Course Code : BCS-011
Course Title : Computer Basics and PC Software
Assignment Number : BCA (R1)-011/Assignment/2018-19
Maximum Marks : 100
Last Date of Submission : 15th October, 2018 (For July, 2018 Session)
15st April, 2019 (For January, 2019 Session)

# BCS-011 Computer Basics and PC Software

Course Code : BCS-011
Course Title : Computer Basics and PC Software
Assignment Number : BCA (R1)-011/Assignment/2018-19
Maximum Marks : 100
Last Date of Submission : 15th October, 2018 (For July, 2018 Session)
15st April, 2019 (For January, 2019 Session)

Q.1 a) What is the role of following components of a Computer System:
(i) Control Unit
(ii) Arithmetic Logic Unit
(iii)Ports and Connectors
(iv) Motherboard

b) What is an instruction in the context of a Microprocessor? How does a microprocessor instruction specify data and operations? Explain with the help of an example.
c) A computer system was designed to have a good latest processor and I/O devices, however the designer of the computer did not put any RAM in it.
The computer does have a hard disk of 1 tera-byte. Will this computer be able to execute programs? Explain giving justification in support of your answer.

d) Convert the following numbers as directed
(i) Decimal 198.25 into binary and hexadecimal
(ii) Decimal 444566 into binary and hexadecimal
(iii) String Maximum Limit 500% ” to ASCII and Unicode string
(iv) Hexadecimal ABCDEF to decimal and binary
e) How are the tracks on magnetic disk different than that of Optical disks?
Consider one optical and one magnetic disks have identical number of tracks and equal size sectors, will these two disks have same size? Justify your answer.
f) Compare and contrast the following technologies
(i) SRAM and DRAM
(ii) USB and Serial Port
(iii)Joystick and Mouse
(iv) Projection displays and LED display

g) Explain the characteristics/functions of the following I/O devices:
(i) Inkjet printer
(ii) Power Connecter
(iii)Video Card
Q.2 a) Explain the Internet Based Software Architecture with the help of a block diagram. How is this architecture different than that of 3-tier client server architecture? Explain.

b) What is a file and directory in the context of a computer? What are the activities
involved in the file management? Explain how file management is different than the Memory Management.
c) Explain the features and uses of the following in the context of computer software and programming:
(i) Assembler
(ii) Interpreter
(iii)Subroutine
(iv) Function
d) Differentiate between the following:
(i) Kernel of an Operating system and Non-resident portion of Operating system
(ii) Command line interface and Graphical user interface of Operating system
(iv) Computer Virus and Computer Worms

e) Draw a flow chart and write an algorithm for a program that multiplies all two
digit odd numbers. (You must use looping).

f) Explain the purpose of each segment marked (i) to (vi) of the following program.

What this program will do?
(i) int i;
int marks[20];
(ii) for (i=0; i<20; i ) {
(iii) printf ( Enter the number );
scanf ( %d , &marks [i];
(iv) if (marks[i] < 40) printf( “Not Successful “);
(v) if (marks[i] >= 40) && (marks[i] < 60)) printf( “Passed in Second
Division);
(vi) if (marks[i] >= 60 printf( “Passed in First Division);
}

g) List which of the software will be required for the following situation. Explain the steps that are needed to be performed in order to solve the situation in question.
(i) You need to send invitation to about 200 students for a workshop.
(ii) A software project has to be managed such that there is no delay.
(iii) Student data and their marks are to be stored such that any query may be made on the data easily.
(iv) You need to show the visual form of data about the progress of an organisation.
Q.3 (a) Explain the following terms in the context of computer networks:
i) Message switching
ii) Simplex transmission
iii) Optical Fiber

(b) A new company which supplies food packets in a locality has to set up a network in its sales office employing 10 parallel ordering stations. It has a large number of person who supplies the food packet at the destination (maximum distance 2 kms from the office). What kind of network the company should make for its sales office? Justify your answer.
(c) List all the activities that you as well as various servers will perform when you check your result from IGNOU website. Explain the role of TCP/IP in this process.

(d) Why is a networking software has layers? List and define the role of each layer of ISO-OSI model.

(e) You want to find about the Universities that offer Programmes in Computer Science and Information Technology but does not offer programmes in Medical Science. Make efficient query or queries that will show the desired result as above. Also explain the activities performed by a search engine.
(f) Explain the following in the context of Internet and its applications:
(i) Security threats on Internet
(ii) E-learning processes

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