Download Latest All
Books Midterm Past Papers virtual university of Pakistan
CS101 Final term
Past Papers Download, We are providing the latest virtual
university Midterm Past Papers short notes in PDF to
facilitate students in their studies. Short Notes covered most of the main
topics from handouts and lectures.
“As you know, most students prepare these Midterm
Past Papers to clear concepts and study smart in an easy
way.
This note explains very importantly long and short questions, MCQS with their
answers, lecture concept, and details covered in provided short notes.
Short notes are arranged according to VU subjects. Easy to download yours
subjects most important short notes that help you in virtual university exams.
Dear
Students Here we Provided Virtual University All Books Short
Notes Assignment
Solutions PDF Updated & Highlighted at one place according to
subjects. Download the latest VU Handouts in your required
subject. Download virtual university all subjects Handouts, handouts mean
a document given to students that contains information about a particular
subject, so here I will provide you with Virtual University All Subjects
Handouts in PDF Format. But at this page you will get all subjects or
courses handouts. After a huge research, these handouts are designed to
help you people in such way that will help you to get more than 75%
marks Insha’Allah. DOWNLOAD THE Latest Vu Assignment Solutions
in your required subjects.
Step 1
You can see Final term past papers file PDF Given
below
Step 2
Select Your File and Click to Download
.jpg)
CS101 Final term Past Papers
Download Final term Past Papers File
.jpg)
Q29
What is the name of HTML tag, that has Href attribute and What is the Purpose
of Href?
Solution:
<A HREF = “action” > label </A>
It is used to to create Links between pages, or we can used it as “mailto”
function.
Q30
Write three characteristics of JavaScript.
Solution:-
(1) JavaScript has numerous operators, classified in many categories.
(2) Terminate all JavaScript statements with a semicolon. It is not always
necessary, but
highly recommended.
(3) JavaScript ignores any extra white spaces or line breaks that you put in
the code
(4) Although JavaScript allows variable declaration, it does not require it -
except in the case
Q31
Give reasons why we need semantic web?
Solution:-
Whereas, today’s Web’s content is designed for humans to read; the Semantic
Web’s content
will be designed for computers to understand meaningfully. However, the
Semantic Web is not a replacement but an extension of the present Web, in which
info is given
well defined meaning
Q32
What are the two key features of UNDO command in MS-Excel ?
Solution:
1. Allows you to recover from your mistakes
2. Allows you to experiment without risk
Question No: 27 ( Marks: 1 )
What is the Brute Force Strategy?
Answer:. A staretegy in which all possible combinations are examined and best
among them is
selected. Brute force (also known as brute force cracking) is a trial and error
method used by
application programs to decode encrypted data such as passwords or Data
Encryption
Answer: The raw data that make up the root of data types are called "literals." These are, in
effect, literally what they represent themselves to be. Numbers, strings, and Boolean values
make up the core set of literals in JavaScript. Little mystery exists with literals, but important
differences exist between them. In JavaScript, data types include strings, which are simply
quoted characters, numbers, Boolean, Objects and even a type which has no value at all, Null.
Since JavaScript is a loosely typed language, you don't neccessarily need to know what type of
data every value is (although it certainly helps).
Every piece of data in these categories is known as a value. When a value is referred to
outright in a statement, it is called a literal value. For the same reason people are identified by
names as opposed to "human" or "person", literal values can be named in order to make
repeated reference to them practical, efficent and readable. These names are called variables.
Literals can be of several types. Some of them are:
Array Literals
Boolean Literals
Floating-Point Literals
Integers
Object Literals
String Literals
Question No: 27 ( Marks: 1 )
Define URL
URL(Uniform resource locator)
URL (Uniform Resource Locator, previously Universal Resource Locator) - is the
address of a file (resource) accessible on the Internet. The type of file or
resource depends on the Internet application protocol.
Examples of URLs: http://vu.edu.pk
http://www.yahoo.com
Question No: 28 ( Marks: 1 )
What is Randomized Algorithm?
Randomized Algorithm:
Any algorithm whose behavior is not only determined by the input, but also
values produced by a random number generator
These algorithms are often simpler and more efficient than deterministic
algorithms for the same problem. And because of there simplicity they are easier
to analyze which is the most important thing in the decision making of an
algorithm.
Question No: 29 ( Marks: 2 )
What was the name of first super computer. When it was introduced?
CRAY1 is the first computer and it was introduced in 1973
Question No: 30 ( Marks: 3 )
How a designer makes Structured Design?
Structured Design is known as a Top-down design.
The designed first conceives about the High level design and then further
designs the details of the high level design components and it goes on and on.
Making small changes in the functionality of the systems sometimes leads to
major re-design exercise. Structured design separates the functionality from
programs data and that’s why program’s deisgned by this methodology are
difficult to maintain.
Question No: 31 ( Marks: 5 )
Why microprocessor uses the binary number system and not the decimal or any
other number system?
The processor is the logic of a computer and functions comparably to a human
central nervous system, directing signals from one component to another and
enabling everything to happen. A microprocessor is made from miniaturized
transistors and other circuit elements on a single
semiconductor integrated circuit (IC) . These are made up oof semiconductor and
silicon.
Microprocessor are composed of components which has only two states either 0
or 1. Binary number system is also composed of these two states.
Microprocessor till today only understand the machine language and machine
language is only based on binary number system. Even today’s 64 bit
microprocessors are also based on this technology.
Question No: 32 ( Marks: 5 )
Why do we need an Interactive Form in a webpage?
1. Interactive forms are used to gather user data and interact with the user.
2. Forms can be made interactive with the use of client side scripting and server
side sciprting.
3. In HTML, <FORM> </FORM> tag is used to insert the form in a web page and it
always lie in <BODY></BODY> html tag.
4. without form’s web site is only “READ ONLY”.
5. with the help of forms a user and can search the contents, place order for goods
and services.
6. Forms can be simple or very complex, based on the requirement.
7.
forms can contain a single element or many e.g text area, buttons
8. Question No: 27 ( Marks: 1 )
9.
What is the key feature of batch programs?
10.
11. Batch files are useful for running a sequence of executables automatically
12. Question No: 28 ( Marks: 1 )
13. Name two languages which are used for client side scripting?
14. JAVASCRIPPT /NETSCAPE
15.
16. Question No: 29 ( Marks: 2 )
17. What is the purpose of MODEM ?
18.
19. THE PURPOSE OF MODEM IS MODULATE AND DEMODULATE THE ELECTRONIC
ANALOG PULSES OF THE COMPUTER TO PULSES THE PHONE SYSTEM M CAN HANDEL.
20.
21. Question No: 30 ( Marks: 3 )
22. What is Home Page of a web site?
23.
24. The pages of a website can usually be accessed from a simple Uniform
Resource Locator (URL) called the homepage. The URLs of the pages
organize them into a hierarchy, although hyper linking between them
conveys the reader's perceived site structure and guides the reader's
navigation of the sit
25.
26. Question No: 31 ( Marks: 5 )
27. Why microprocessor uses the binary number system and not the decimal or any
other number system?
28.
29. At this point in computer science we only have two 'digital' states, which is that any
bit can only be either on or off.
30. The on/off is commonly used to represent yes/no.(On(1) = Yes, Off(0) = No)
31. A microprocessor can only see if a signal is there or is missing, in other
words, if the signal is on or off, or a bit is a 1 or a 0.
32.
33.
34. Question No: 32 ( Marks: 5 )
35. What is the difference between Interactive-mode and Batch-mode Application
Software?
36. Batch files are useful for running a sequence of executables automatically and are often
used by system administrators to automate tedious processes while interactive mode
applications attract the attention of user this kind of applications can not execuate untill
37.
User have interest to execure and complete the process.
Question No: 27 ( Marks: 1 )
What is the key feature of object-oriented design?
ANSWER: The key feature of object-oriented design is that it treats every thing as object having
properties and methods. These objects are separately treated and designed and once designed
it can be used in any other system. So once designed can be used many times.
Question No: 28 ( Marks: 1 )
Write one purpose of using spreadsheets ?
ANSWERS: Purpose of spreadsheets is that it can do calculations on data accurately.
Question No: 29 ( Marks: 2 )
List down two advantages of writing Pseudo Code
Answers: The advantages of pseudo code are:
• It is quite similar to human language so easy to understand.
• It is close to real code so easy to write real code from it.
Question No: 30 ( Marks: 3 )
How can we calculate total number of rows in the truth table?
ANSWER: The formula for calculating number of rows in truth table is 2
Where n = number of inputs
Question No: 31 ( Marks: 5 )
Differentiate between Vector graphics and Bit-mapped graphics.
ANSWER:
VECTOR GRAPHICS
1. Treat everything as an object
2. Is resolution independent
3. Relatively small size
4. Example: Corel Draw
Question No: 32 ( Marks: 5 )
n
BIT MAPPED IMAGES
Write differences between Shareware and trail ware software.
1. Treats everything as a bit map.
2. Resolution dependent
3. Large files
4. Example: Microsoft Paint
ANSWER:
SHAREWARE
1. These are shared freely.
2. It is given without payment ahead of
time.
TRIALWARE
1. Software is offered for a trial period.
2. When the period is expired it is no
more in use.
CS101 Solved Subjective Part Midterm
Question No: 31 ( Marks: 1 )
What does TCP/IP stand for?
Transmission Control Protocol
Question No: 32 ( Marks: 1 )
Why there is a need to use primary key in database ?
Primary Key is a field that uniquely identifies each record stored in a table
Question No: 33 ( Marks: 2 )
What is image processing ?
Image Processing:
A branch of computer science concerned with manipulating and enhancing computer
graphics
Question No: 34 ( Marks: 2 )
Define testing with respect to programming..
Testing: The tasks performed to determine the existence of defects
Question No: 35 ( Marks: 3 )
How can we define a computer screen?
Question No: 36 ( Marks: 3 )
What is difference between Design and System Architecture?
System
A collection of elements which working together produces a result not achieved by
the things alone
System Architecture
The structure
(in terms of components, connections, constraints) of a product or a process
Question No: 37 ( Marks: 3 )
Write JavaScript code to convert the number 236.2363611111556 into currency format and
JavaScript statement to show output.
a = 236.2363611111556;
b = a.toString( ) ;
decimalPos = b.indexOf( ".", 0 ) ;
c = b.substring( 0, decimalPos + 3 ) ;
document.write( c ) ;
Question No: 38 ( Marks: 5 )
Show output of the following code:
for (i=0; i<=10; i++)
{
document.write("The number is " + i);
document.write("<br />");
}
Question No: 39 ( Marks: 5 )
What is a Relational Database? Give the names of any three RDBMS software. (2+3)
Relational Databases
• Databases consisting of two or more related tables are called relational databases
• A typical relational database may have anywhere from 10 to over a thousand tables
• Each column of those tables can contain only a single type of data (contrast this
with spreadsheet columns!)
• Table rows are called records; row elements are called fields
• A relational database stores all its data inside tables, and nowhere else
• All operations on data are done on those tables or those that are generated by table
operations
• Tables, tables, and nothing but tables!
RDBMS
• Relational DBMS software
• Contains facilities for creating, populating, modifying, and querying relational
databases
• Examples:
–Access
–FileMaker Pro
–SQL Server
–Oracle
Question No: 40 ( Marks: 10 )
Define the following terms.
¬ Object
¬ Event Handler
¬ Local Variable
¬ Scope of Variable
¬ Array
Object
A named collection of properties(data, state) & methods (instructions, behavior)
Event Handler
An event handler is a command which calls a function when an event happens, such as the user clicking a
button
Local Variable
Declaring variables (using the var keyword) within a function, makes them local•They are available
only
within the function and hold no meaning outside of it
Scope of Variable
Defining the space in which a variable is effective is known as
defining the scope of a variable. A variable can be either local or global in scope
Array
Question No: 27 ( Marks: 1 )
What is the Brute Force Strategy?
Answer:. A staretegy in which all possible combinations are examined
and best among them is selected. Brute force (also known as brute
force cracking) is a trial and error method used by application
programs to decode encrypted data such as passwords or Data
Encryption Standard (DES) keys, through exhaustive effort (using brute
force) rather than employing intellectual strategies.
Question No: 28 ( Marks: 1 )
What is java script?
Answer: JavaScript is an object-oriented scripting language used to
enable programmatic access to objects within both the client
application and other applications.
It is primarily used in the form of client-side JavaScript, implemented
as an integrated component of the web browser, allowing the
development of enhanced user interfaces and dynamic websites
Question No: 29 ( Marks: 2 )
How can you explain control unit?
Answer: Control unit is a computerized part of the speech processor.
Most of the controls, such as program, volume and sensitivity, are
located on the control unit.
Question No: 30 ( Marks: 3 )
How a designer makes Structured Design?
Answer: Structured Design: Materials and member type, size, and
configuration to carry loads in a safe and serviceable fashion.
In general, structural design implies the engineering of stationary
objects such as buildings and bridges, or objects that may be mobile
but have a rigid shape such as ship hulls and aircraft frames tructural
design involves at least five distinct phases of work, project
requirements, materials, structural scheme, analysis, and design
It is insufficient in most cases, for the designer to consider a solution,
a design. He should evaluate several alternate designs and choose the
best in the sense of maximizing such technical objectives as
efficiency, reliability, and maintainability while satisfying such design
constraints as memory size and response time.
Question No: 31 ( Marks: 5 )
What is Turing machine? Who invented it and also explain how a
Turing test is conducted?
Answer: A Turing machine is a theoretical device that manipulates
symbols contained on a strip of tape. Despite its simplicity, a Turing
machine can be adapted to simulate the logic of any computer
algorithm, and is particularly useful in explaining the functions of a
CPU inside of a computer. The "Turing" machine was designed by Alan
Turing in 1937.
The Turing test is a proposal for a test of a machine's ability to
demonstrate intelligence. It proceeds as follows a human judge
engages in a natural language conversation with one human and one
machine, each of which tries to appear human. All participants are
placed in isolated locations. If the judge cannot reliably tell the
machine from the human, the machine is said to have passed the test.
In order to test the machine's intelligence rather than its ability to
render words into audio, the conversation is limited to a text-only
channel such as a computer keyboard and screen.
If a computer pass the test ,we can say that a machine can think.
Question No: 32 ( Marks: 5 )
What are JavaScript literal and what are its types?
Answer: The raw data that make up the root of data types are called
"literals." These are, in effect, literally what they represent themselves
to be. Numbers, strings, and Boolean values make up the core set of
literals in JavaScript. Little mystery exists with literals, but important
differences exist between them. In JavaScript, data types include
strings, which are simply quoted characters, numbers, Boolean,
Objects and even a type which has no value at all, Null. Since
JavaScript is a loosely typed language, you don't neccessarily need to
know what type of data every value is (although it certainly helps).
Every piece of data in these categories is known as a value. When a
value is referred to outright in a statement, it is called a literal value.
For the same reason people are identified by names as opposed to
"human" or "person", literal values can be named in order to make
repeated reference to them practical, efficent and readable. These
names are called variables.
Literals can be of several types. Some of them are:
Array Literals
Boolean Literals
Floating-Point Literals
Integers
Object Literals
String Literals
Question No: 27 ( Marks: 1 )
Define URL
URL(Uniform resource locator)
URL (Uniform Resource Locator, previously Universal Resource
Locator) - is the address of a file (resource) accessible on the Internet.
The type of file or resource depends on the Internet application
protocol.
Examples of URLs:
http://vu.edu.pk
http://www.yahoo.com
Question No: 28 ( Marks: 1 )
What is Randomized Algorithm?
Randomized Algorithm:
Any algorithm whose behavior is not only determined by the input, but
also values produced by a random number generator
These algorithms are often simpler and more efficient than
deterministic algorithms for the same problem. And because of there
simplicity they are easier to analyze which is the most important thing
in the decision making of an algorithm.
Question No: 29 ( Marks: 2 )
What was the name of first super computer. When it was introduced?
CRAY1 is the first computer and it was introduced in 1973
Question No: 30 ( Marks: 3 )
How a designer makes Structured Design?
Structured Design is known as a Top-down design.
The designed first conceives about the High level design and then
further designs the details of the high level design components and it
goes on and on.
Making small changes in the functionality of the systems sometimes
leads to major re-design exercise. Structured design separates the
functionality from programs data and that’s why program’s deisgned by
this methodology are difficult to maintain.
Question No: 31 ( Marks: 5 )
Why microprocessor uses the binary number system and not the
decimal or any other number system?
The processor is the logic of a computer and functions comparably to a
human central nervous system, directing signals from one component
to another and enabling everything to happen. A microprocessor is
made from miniaturized transistors and other circuit elements on a
single
semiconductor integrated circuit (IC) . These are made up oof
semiconductor and silicon.
Microprocessor are composed of components which has only two
states either 0 or 1. Binary number system is also composed of these
two states.
Microprocessor till today only understand the machine language and
machine language is only based on binary number system. Even today’s
64 bit microprocessors are also based on this technology.
Question No: 32 ( Marks: 5 )
Why do we need an Interactive Form in a webpage?
1.
Interactive forms are used to gather user data and interact with
the user.
2. Forms can be made interactive with the use of client side
scripting and server side sciprting.
3.
In HTML, <FORM> </FORM> tag is used to insert the form in a
web page and it always lie in <BODY></BODY> html tag.
4.
without form’s web site is only “READ ONLY”.
5.
with the help of forms a user and can search the contents, place
order for goods and services.
6.
Forms can be simple or very complex, based on the requirement.
7.
forms can contain a single element or many e.g text area,
buttons
Question No: 31 ( Marks: 1 )
In programming, what is a loop?
In computer science a for loop is a programming language statement
which allows code to be repeatedly executed. A for loop is classified
as an iteration statement.
Question No: 32 ( Marks: 1 )
What are the other names of function? Any one.
Routine , procedure , sub prograam
Question No: 33 ( Marks: 2 )
How JavaScript Arrays are heterogeneous ?
Arrays are heterogeneous in java script because at the same time
stimultanously they can hold elements of multiple data types
Question No: 34 ( Marks: 2 )
What is the database?
Data base is a collection of organized data in a proper way that
computer can quickly search for any desired data item , its an easy
way of allowing of manipulation of data,they are design in such a way
that access to any desired data can be identified and reached quickly
and easy , they are generally consist of collection of interrelated files
Question No: 35 ( Marks: 3 )
Differentiate between LAN and WAN with one example of each.
Lan is a local area network where as wan is a wide area network
Lan can be used in a specific areas with limited computers where as
wan can be used on computers shared by large distances
For example lan can be used on pc s or an organization located in one
building but wan can be used on large scales like banks all over or in
any Large communication systems
Question No: 36 ( Marks: 3 )
What are Trojan Horses ?
Trojen horses are a kind of cyber crime , they are v harmful to
computer because they are stand alone programme and the look like
what they are not like any thing amusing or not harmless like games..
Question No: 37 ( Marks: 3 )
Elaborate Rester Graphics with examples.
A raster graphics image, digital image, or bitmap, is a data file or
structure representing a generally rectangular grid of pixels, or points
of color, on a computer monitor, paper, or other display device.
To illustrate the matter further - here's the letter "J":
J
Look closely at it... Take a magnifying glass to it if you like. You see a
"J", the computer sees something more like this, where '.' represents a
zero and 'X' represents a one:
....X
....X
....X
....X
....X
....X
....X
X...X
X...X
.XXX.
Where you see a zero, the computer instructs its video hardware to
paint the current background color. A one calls for the current
foreground color. Yes, it is actually a bit more complicated, but it all
basically boils down to one bit or the other making a distinction
between the colors of adjacent pixels, which together form an image.
Question No: 38 ( Marks: 5 )
What are the important properties, methods and event handlers of
image object?
The primary use of the image object is to download an image into the
cache before it is needed to display , image object can be used to
create different kinds of animations or to display one of several images
based on the desired requirement , in java script image object can be
used to display the required pre loaded image
Properties of image object is
: height , width ,hspace ,vspace , src ,
name border etc
Methods :none
Event handlers:on aboart , onload, onerror etc
Question No: 39 ( Marks: 5 )
Write the JavaScript code for the Function
SumOddNumbers(maxNumber) that can add non-negative odd numbers
up to maxNumber and return their sum.
Function sum odd numbers(maxnumber){var sum=0;
For(i=0; <maxNumbers;I++)
{
{
if(i / 2 == 1 || i == 1)
sum += i;
}
return sum;
}
Question No: 40 ( Marks: 10 )
Write a note on :
· Coding guidelines
· Guidelines for developing short programs.
· Coding guidelines
· • Always use semicolons to end statements
· • Indent blocks of code (2 to 5 spaces)
· • Identifiers
· • Use the camel back scheme
· • Variables: nouns
· • Functions: verbs
· • Comment Liberally
· • Make them descriptive but concise
·
Gudelines for developing short programs.
· • Read and understand the problem
· • Do you have all the required data?
· • No: Get it
· • Else assume it. State it explicitly
· • Do the design
Question No: 41 ( Marks: 10 )
write a note on each of the following:
a. Vector or Object-Oriented Graphics:
b. Bit-Mapped or Raster Graphics:
A:In Vector or object oriented graphic everything drawn is treated as
object. objects retain their identity after they are drawon. these
objects can later be moved, stretched, duplicated, deleted,etc. they
are resolution independent and have relatively small file size. the
examples are: swf, svg, wmf, ps
brass_ibrahim: Vector graphics is the use of geometrical primitives
such as points, lines, curves, and shapes or polygon(s), which are all
based on mathematical equations, to represent images in computer
graphics.
brass_ibrahim: The term "vector graphics" is mainly used today in the
context of two-dimensional computer graphics Virtually all modern 3D
rendering is done using extensions of 2D vector graphics techniques
.Virtually all modern 3D rendering is done using extensions of 2D
vector graphics techniques
B:Bit-Mapped or Raster Graphics:
Treats everything that is drawn as a bit-map
If an object is drawn on top of another, it is difficult to move just one of
them while
leaving the other untouched
Changing the resolution often requires considerable touch-up work
Relatively large file size
Examples: gif, jpg, bmp
masood.tariq: Bit-Mapped or Raster Graphics:
Treats everything that is drawn as a bit-map
If an object is drawn on top of another, it is difficult to move just one of
them while
leaving the other untouched
Changing the resolution often requires considerable touch-up work
Relatively large file size
Examples: gif, jpg, bmp
28 objectives were from old papers out of 30.
What is Array? Marks 2
what is computer prrofessional? Marks 2
define onLoad and onUnload? Marks 2
waht is time bomb? Marks 2
what is bandwidth? Marks 2
"while" loop is more preferable than "For" loop? Marks 3
sementic web and present web? Marks 3
can we replace a human doctor by Expert system? Marks 5
Difference Internt and intranet? Marks 5
ways of navigation Heuristics? Marks 5
event handling?
Define network organization and its advantages? Marks 10
Coding Guidline and guidlines for short programs? Marks 10
Dewelop a web page that displays six thumbnails
images. A main image should be changed to a large
version of thumbnail as soon as the mouse moves
over the thumbnail. Write complete html and java script? Marks 10
characteristics of Internet? Marks 10
Profile and responsibilities of Team Leader? Marks 10
due to computer how many jobs are available and
how many jobs are eliminated? Marks
Today was my CS101 Paper. The Subjective Quizzes are as under:
1. How many members are in operational team and what there key
resposibilities
2. What is Computer Screen?
3. What are weaknesses of the web?
4. Characteristics of Internet (Any Five)?
5. Breifly describe
Telnet
VoIP
Instant Messaging
FTP
IP/TCP
6. Describe the organizational structure?
7. What is image process
8. Pixel?
Today I had CS 101 Paper.There were 41 questions.30 objective and 11
descriptive.Few of the questions were:
3 attributes of event handler
Difference between Internet and Intranet
Function
Commonsense to avoid viruses and explain antivirus
TCP/IP
An attack on Yahoo servers
Spreadsheets
Codes for uploading file
Hierarchy in an organization
Team lead
COO
Developer
Businessess monitoring their employees
'+' operator
Image in Javascript
Question No: 17 ( Marks: 2 )
Write the major types of softwares with examples?
Answer..
System SW
System software is responsible for controlling, integrating, and
managing the individual
hardware components of a computer system.
System software performs tasks like transferring data from memory to
disk, or rendering
text onto a display Specific kinds of system software include loading
programs, operating
systems, device drivers, compilers, assemblers, linkers, and utilities.
Software libraries that perform generic functions also tend to be
regarded as system
software. System software stored on non-volatile storage on integrated
circuits is usually
termed firmware. These generally perform the background tasks in a
computer. These
programs, many times, talk directly to the HW.
Application SW
Programs that generally interact with the user to perform work that is
useful to the user.
These programs generally talk to the HW through the assistance of
system SW.
Question No: 18 ( Marks: 2 )
What is the major difference between paragraph <p> and Line Break
<BR> tags?
<P> … </P>
Paragraph
<BR>
Line break
Question No: 19 ( Marks: 2 )
Why PASCAL was designed and what is the problem with PASCAL?
Answer,,
Pascal is very good for writing well-structured and readable programs,
but it is not as
flexible as the C programming language
C++ embodies powerful object-oriented features, but it is complex and
difficult to learn
What changes in the field of computer languages can we expect in the
near future
Question No: 20 ( Marks: 3 )
What are the key requirements of E-commerce Software?
Answer..
E-Commerce Software
Key requirements:
Reliability
Security
Ability to handle 1000’s of transactions, simultaneously
Question No: 21 ( Marks: 3 )
Write down the pseudo code for the following flow chart.
Answer…. Pseudo code
Flowcharts
Actual code
Pseudo Code
Language that is typically used for writing algorithms
Similar to a programming language, but not as rigid
The method of expression most suitable for a gi
Question No: 22 ( Marks: 5 )
(a) Write down two positive features of client-side scripting.
Answet..
Reduced server load as it does not have to send messages to the
user’s browser about
missing or incorrect data
Reduced network traffic as the form’s data is sent only once instead of
many to’s and
fro’s
Question No: 17 ( Marks: 2 )
What is Ockham’s Razor principle ?
Answer…
When choosing among competing, successful solutions to a problem,
choose the one which is the least
complex
This principle is called the “Ockham’s Razor,” after William of Ockham -
famous 13-th
century English philosopher
Question No: 17 ( Marks: 2 )
Explain briefly the different techniques that are used to embed
JavaScript code in a web page?
Answer., Client-side JavaScript code is embedded within HTML
documents in a number of ways:
• Between a pair of <script> and </script> tags
• From an external file specified by the src attribute of a
<script> tag
• In an event handler, specified as the value of an HTML
attribute such as onclick or onmouseover
• As the body of a URL that uses the special javascript:
protocol
The following sections document each of these JavaScript
embedding techniques in more detail. Together, they explain all
the ways to include JavaScript in web pages -- that is, they
explain the allowed structure of JavaScript programs on the
client side.
Question No: 18 ( Marks: 2 )
What is an interpreter? Write its one benifit over compiler.
Answere
Interpreter is a program that executes instructions written in a highlevel
language
An interpreter translates high-level instructions into an intermediate
form, which it then
executes. In contrast, a compiler translates high-level instructions
directly into machine
language
Compiled programs generally run faster than interpreted programs.
compilation stage during which the whole of the high-level code is
translated into
machine instructions in one go. This process can be time-consuming if
the program is
long.
The interpreter can immediately execute high-level programs, without
waiting for the
completion of the translation process
The choice of which language to use can also depend on the:
-Type of computer the program is to run on,
- Expertise of the programmer
Interpreters: immediate response, but execute code slowly.
Compilers: Takes longer to compile, but super-fast execution.
Question No: 19 ( Marks: 2 )
Whether response time of a microprocessor is greater or less than that
of RAM?
A microprocessor incorporates most or all of the functions of a
computer's central processing unit (CPU) on a single integrated
circuit (IC, or microchipThe first microprocessors emerged in the
early 1970s and were used for electronic calculators, using
binary-coded decimal (BCD) arithmetic in 4-bit words. Other
embedded uses of 4-bit and 8-bit microprocessors, such as
terminals, printers, various kinds of automation etc, followed
soon after. Affordable 8-bit microprocessors with 16-bit
addressing also led to the first general-purpose microcomputers
from the mid-1970s on.
During the 1960's, computer processors were often constructed
out of small and medium-scale ICs containing from tens to a few
hundred transistors. The integration of a whole CPU onto a single
chip greatly reduced the cost of processing power. From these
humble beginnings, continued increases in microprocessor
capacity have rendered other forms of computers almost
completely obsolete (see history of computing hardware), with
one or more microprocessors used in everything from the
smallest embedded systems and
handheld devices to the largest
mainframes and supercomputers.
Since the early 1970s, the increase in capacity of
microprocessors has been a consequence of Moore's Law, which
suggests that the complexity of an integrated circuit, with
respect to minimum component cost, doubles every two years
In the late 1990s, and in the high-performance microprocessor
segment, heat generation (TDP), due to switching losses, static
current leakage, and other factors, emerged as a leading
developmental constraint
Question No: 20 ( Marks: 3 )
Write formula for the following expression.
1)
If we want to add the value from cell C3 to C10 we can
write
2) If we want to add the value of C2 to the value of C4 and
than multiply by C6 , the formula is written for
1.answer formula
=sum(c3:c10) then enter
=(c2+c10Xc6) then enter
Question No: 22 ( Marks: 5 )
What is software life cycle?
SW Life-Cycle
The sequence of phases a SW goes through from the concept to
decommissioning
It is important to think about all those phases before the design work
starts
Thinking about the future phases generally results in:
Shorter delivery times
Reduced costs of development
A system of higher quality
A Case in Point
I didn’t discuss with the customer the specs of the HW & OS before
developing a
particular e-commerce SW.
I wrote it for the HW/OS that was easily available to me.
Unfortunately that HW/OS combination differed from what was easily
available to the
client Result: Huge amount of rework. Higher cost. Delayed delivery.
Lower quality.
Therefore, now before designing a SW system, I first write down the
installation manual,
and get it OK’d by the customer. I do the same with the Operation &
Maintenance
manual as well.
Question No: 23 ( Marks: 5 )
Elaborate greedy algorithm definition with solid example in favour and
one counter example?
An algorithm that always takes the best immediate, or local solution
while finding an
answer
Greedy algorithms may find the overall or globally optimal solution for
some
optimization problems, but may find less-than-optimal solutions for
some instances of
other problems
KEY ADVANTAGE: Greedy algorithms are usually faster, since they
don't consider the
details of possible alternatives
Greedy Algorithm: Counter Example
During one of the international cricket tournaments, one of the teams
intentionally lost a
match, so that they could qualify for the next round
If they had won that particular match, some other team would have
qualified
This is an example of a non-greedy algorithm
Greedy Algorithm: Example
A skier skiing downhill on a mountain wants to get to the bottom as
quickly as possible
What sort of an algorithm should the skier be using?
The greedy-algorithm approach will be to always have the skies
pointed towards the
largest downhill slope (
dy/dx), at all times
What is the problem with that approach?
In what situations that will be the best algorithm?
In which situations would it perform poorly?
Insert text: Allows you to insert text anywhere in the document.
delete text: Allows you to erase characters, words, lines, or pages as easily
as you can cross them out on paper.
cut and paste : Allows you to remove (cut) a section of text from one place
in a document and insert (paste) it somewhere else.
copy : Allows you to duplicate a section of text.
page size and margins : Allows you to define various page sizes and
margins, and the word processor will automatically readjust the text so that it
fits.
search and replace : Allows you to direct the word processor to search for a
particular word or phrase. You can also direct the word processor to replace
one group of characters with another everywhere that the first group appears.
word wrap : The word processor automatically moves to the next line when
you have filled one line with text, and it will readjust text if you change the
margins.
print: Allows you to send a document to a printer to get hardcopy.
file management : Many word processors contain file management
capabilities that allow you to create, delete, move, and search for files.
font specifications: Allows you to change fonts within a document. For
example, you can specify bold, italics, and underlining. Most word
processors also let you change the font size and even the typeface.
footnotes and cross-references: Automates the numbering and placement of
footnotes and enables you to easily cross-reference other sections of the
document.
graphics graphics: Allows you to embed illustrations and graphs into a
document. Some word processors let you create the illustrations within the
word processor; others let you insert an illustration produced by a different
program.
headers , footers , and page numbering: Allows you to specify customized
headers and footers that the word processor will put at the top and bottom of
every page. The word processor automatically keeps track of page numbers
so that the correct number appears on each page.
layout : Allows you to specify different margins within a single document
and to specify .
.jpg)
.jpg)
.jpg)
.jpg&description=CS101 Final term Past Papers SUBJECTIVE UPDATED 2023){kind=link}
0 Comments