CS101 Midterm Solved Paper 2009 -5

Introduction to Computing- CS101 Midterm Solved Paper-5

Spring 2009

Question No: 1    ( M a r k s: 1 )    

 Vacuum tubes were replaced by.

       ► Punch cards

       ► Transistors

       ► Micro Processors

       ► Resistors

   

Question No: 2    ( M a r k s: 1 )  

 Today’s computers are based on the technology of  _______.

       ► Punch cards

       ► Vacuum tubes

       ► Transistors

       ► Resistors

      Transistors the term transistor; a voltage- or current-controlled resistor. It is the key component in all modern electronics. In digital circuits, transistors are used as very fast electrical switches, and arrangements of transistors can function as logic gates, RAM-type memory and other devices. In analog circuits, transistors are essentially used as amplifiers.

Question No: 3    ( M a r k s: 1 )  

 Browser is a __________________ used for browsing.

       ► Tool

       ► Component

       ► Device

       ► None of the given choices

   

Question No: 4    ( M a r k s: 1 )   

It represents the ________________ flow chart element.

       ► Process

       ► Input or Output

       ► Decision

       ► Connector

   

Question No: 5    ( M a r k s: 1 )   

 Which of the following number system is used by microprocessor? 

       ► Binary

       ► Decimal

       ► Octal

       ► Hexadecimal

   

Question No: 6    ( M a r k s: 1 )   

 Hexadecimal number system is based on ------------------- digits.

       ► 2

       ► 8

       ► 12

       ► 16

 
There are 16 Hexadecimal digits. They are the same as the decimal digits up to 9, but then there are the letters A, B, C, D, E and F in place of the decimal numbers 10 to 15:
http://www.mathsisfun.com/hexadecimals.html 

Question No: 7    ( M a r k s: 1 )   

 Java script interact with user through______________.

       ► Special control

       ► Internet explorer

       ► Event handlers

       ► Java script does not interact with user

   

Question No: 8    ( M a r k s: 1 )    

 Programs that are typically started from a shell (or automatically via a scheduler) are called:

       ► Batch programs

       ► Event-driven programs

       ► Sequential programs

       ► Application programs

   Batch Programs

These are typically started from a shell (or automatically via a scheduler) and tend to follow a pattern of: Initialize internal data

  

Question No: 9    ( M a r k s: 1 )   

 A new cell using HTML is added in table row by.

       ► <TC>…</TC>

       ► <TR>…</TR>

       ► <TD>…</TD>

       ► <NC>…</NC>

      http://www.w3schools.com/tags/tag_table.asp

Question No: 10    ( M a r k s: 1 )   

 Waterfall is a ________ life-cycle model.

       ► Spiral

       ► Sequential

       ► Circular

       ► Spherical

   The sequence of phases (or the life-cycle mode) that SW developers follow. This one is called the “Waterfall” model

Question No: 11    ( M a r k s: 1 )  

 What will be the result of the following formula in Spreadsheet application ?

SUM(A2:A3) =_________(Assume that  A2 = 25 A3 = 75)

       ► 25

       ► 50

       ► 75

       ► 100

   

Question No: 12    ( M a r k s: 1 )   

 A ____________ operating system allows many users to take advantage of the computer's resources, simultaneously.

       ► Single user

       ► Multi- user

       ► Single tasking

       ► Multi tasking

   

Question No: 13    ( M a r k s: 1 )   

 When we use <INPUT  type=“password”>, what will happen? 

       ► Text will not be visible

       ► Text will be in normal format

       ► Text will be in **** format

       ► Text will be in #### format

   

Question No: 14    ( M a r k s: 1 )  

 The world first computer program was written to compute: bernoulli’s sequence.

       ► Multiple sequence

       ► Bernoulli’s sequence

       ► Increasing sequence

      Babbage: the father of computingAda: the mother?Wrote a program for computing the Bernoulli’s sequence on the Analytical Engine -

world’s 1st computer program

Question No: 15    ( M a r k s: 1 )   

 The first Web browser with a GUI was generally available in:

       ► 1992

       ► 1993

       ► 1994

       ► 1995

   The word "browser" seems to have originated prior to the Web as a generic term for user interfaces that let you browse (navigate through and read) text files online. By the time the first Web browser with a graphical user interface was generally available (Mosaic, in 1993), the term seemed to apply to Web content, too.

Question No: 16    ( M a r k s: 1 )   

 ASCII WHITE is the fastest Super computer which can perform __________ calculations in one second.

       ► 1.3 billion

       ► 1.3 trillion

       ► 1.3 miillion

       ► 1.3 thousand

   

Question No: 17    ( M a r k s: 1 )  

 Monitor is an example of.

       ► Input Device

       ► Processing Device

       ► Output Device

       ► Storage Device

Question No: 18    ( M a r k s: 1 )   

 Forms can be submitted through _________ methods.

       ► INCLUDE, POST

       ► INCLUDE, GET

       ► GET, POST

       ► SEND, POST

   

Question No: 19    ( M a r k s: 1 )  

 _______ is responsible for all the essential operations like basic house keeping, task scheduling, etc. Also contains low-level HW interfaces

       ► Hardware

       ► Device Manager

       ► Kernel

       ► Device Driver
Kernel:
The heart of the OS
Responsible for all the essential operations like basic house keeping, task scheduling, etc.
 

Question No: 20    ( M a r k s: 1 )   

 Which of the following is NOT an Application Software.

       ► Word Processor

       ► Web Browser

       ► Windows XP

       ► MS Excel

   

Question No: 21    ( M a r k s: 1 )   

 Bit-mapped graphics is also known as _______ graphics.

       ► Vector

       ► Raster

       ► Scalar

       ► Simple

   

Question No: 22    ( M a r k s: 1 ) 

 A set of stand alone productivity applications designed to work together known as ______________ .

       ► Productivity software suites

       ► Compiled software

       ► Secure software

       ► Intelligent software

   Productivity SW Suites

A set of stand-alone productivity applications designed to work easily with each other Share a common UI

Question No: 23    ( M a r k s: 1 )   

 ____________ is used to terminate all JavaScript statements.

       ► Colon

       ► Semicolon

       ► Underscore

       ► Apostrophe
 

      Semicolon ;Terminate all JavaScript statements with a semicolon. It is not always necessary, but highly recommended.

   

Question No: 24    ( M a r k s: 1 )    

 By today's standards, the Mark-I was slow and requiring 3 to 5 seconds for a multiplication operation. True

       ► True

       ► False

   

Question No: 25    ( M a r k s: 1 )    

 There are_________________ rules to write the Pseudo Code.

       ► Standard

       ► No standard

       ► Pre-defined

       ► Strict

   

Question No: 26    ( M a r k s: 1 )    

 In flow charts, there is only one entry point in conditions while there is/are__________ exit points.

       ► 1

       ► 2

       ► 3

       ► 4

   

Question No: 27    ( M a r k s: 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    ( M a r k s: 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    ( M a r k s: 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    ( M a r k s: 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    ( M a r k s: 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    ( M a r k s: 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