BCS-011 - Solved Assignment 2016-2017 IGNOU BCA

Question 1: (Covers Block 1)

(a)

A person has written a program for analysis of data. The program and data are available in written form with the person. List steps of activities that the person will have to follow to run the program on the data using a Computer. Also, explain the function of each component of a computer.

(b)

What is RAM in the context of computer? Why is it needed? What is SRAM and its role in a computer? A computer has primary memory still it requires hard disk, why? Explain the storage organization of a Hard disk and access time for it.

(c)

Convert the following numbers as directed

(i) Decimal 325.6125 into binary and hexadecimal

(ii) Decimal 32768 into hexadecimal and binary

(iii) Character s and T to ASCII and Unicode

(iv) Hexadecimal AAA1 to decimal and binary

(d)

A 2 inch disk has 8 recording surfaces (4 plates), this disk has 512 tracks with each track having 512 sectors of 512 bytes each. Calculate the capacity and recording density for the disk. This disk rotates at a speed of 6000 rpm and has an average seek time of 10ms; what will be the average access time of the disk?

(e)

Compare and contrast the following printing technologies

(i) Impact versus non-impact printer

(ii) Inkjet versus Laser printer

(iii) Character versus dot matrix printers

(iv) Line printers versus page printer

(f) Explain the characteristics/functions of any four input

devices.

(g) Explain the uses of following Software:

(i) Disk backup

(ii) Disk management

(iii) Disk Checker

(iv) System restore

Question 2: (Covers Block 2)

(a) What is cloud Computing? Explain with the help of an

example. What are the features, advantages and

disadvantages of cloud computing? Differentiate between

cloud computing and Internet based architecture.

(b) Explain the features and uses of the following computer

software:

(i) Anti-virus programs

(ii) Debuggers

(iii) Device drivers

(iv) Multimedia Authoring applications

(c) What is the need of Operating system for a Computer

System? Explain the file management, I/O Management and

memory management in the context of Operating system with

the help of an example.

(d) Differentiate between the following

(i) Process and Thread

(ii) Serial Processing and Simple Batch processing

(iii)Timesharing and Multiprogramming operating systems

(iv) Unix and Windows

(e) Draw a flow chart and write an algorithm for a program that

adds 10 even numbers starting from 2. (You must use

looping).

(f) Define the following terms in the context of programming

with the help of an example:

(i) Data Types

(ii) Arrays

(iii)Subroutines and functions

(iv) Logical and relational operators

(g) Explain the following with the help of an example/diagram, if

needed:

(i) Open Source Software Licensing

(ii) Timesheet Management

(iii) Use of Primary Key in a table of a database

(iv) Use of chart and macros in MS-Excel

Question 3: (Covers Block 3)

(a) What are the advantages of using computer Networks? What

is a twisted pair cable? What are its characteristics? Compare

and contrast the features of twisted pair cable to optical fiber

cable in the context of data transmission.

(b) A company has one single office building having about 1000

rooms in a city from where it controls all its operations. What

kind of network the company should make for its office? The

company makes about 100 dealers all over the county; what

kind of network company should make to communicate with

dealers? Justify your answer.

(c) Explain the concept of DNS. Explain the components of an

IP address with the help of an example. What is the

significance of network mask? Explain with the help of an

example.

(d) Explain the functioning of a search engine. You want to identify

the latest developments in the area of Internet. Make a search

phrase which may give you good result.

(e) List major security threats while using email, chat and social

networking. How can you reduce the risk due to these

threats?

(f) Explain the following in the context of Internet and its

applications, giving their features and uses:

(i) E-learning

(ii) Social Networking

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