Software engineering

 

Now we discus about software engineering it has a very interesting field.  In Modern life a number of people are take interest in this field.  After reading this interest post we will be able to make new software.  Before we can move this topic first of all we discus about the software and engineering separately.

software engineering

Software engineering

Here first we talk about the software is an anything give to system or nodes of solving our problem.  It may be in the form package or customize.  Software are not just the code write in the program it like a document.

No doubt now a day, software is use in every field of life.  It plays a vital role in the field of business, investigation, search and engineering.  We see daily routine of life games. These games are make with coding use is software.

In last the word engineering means is use to produce the product using scientific method.

Part for software

Some more complex software is like a IEEE provide the authentic response for computer relate issues.

Software engineering is the combination of some tools are use to make a new software.  With the help of these tools we use some technique for software.  These things are use for the production of software is as follow:

•  First one the user must be a expert in computer language.
•  Second one user should be able to design the language.
• Programmer technique play a vital role
• Tools
•  Testing
•  Implement
• Maintain
•  Development

Before all of these points a programmer should be well structure.  A well-structure program should be characteristics:

The program should be a reliable.

Good quantity software

Should be a cost effective

Well performance

Economics relation with software is very important.  When engineer develop a software first thing in mind this software is economically is feasible or not.  In this situation the main challenge for programmer the software should be a user interface, well design and cost effective.

Balance act

In software engineering the word balance means the software should be GUI means graphical user interface, cost effective means cheap, reliable etc.  For a trader and future time software important features are should eye catch and well design.  A programmer faces some tension like a cost vs. reliability and cost vs. efficiency.  In this situation the software engineer should keep a balance for facing computer issues.

Software is can be dividing into 25 various software.  They can have ten thousands of projects are uses in software develop which ten of them are as follow:

• A project manager should necessary
•  Requirements engineering
• Design
• code
• Test
• Quality software
• Configurations software
• Integrates’

Rest of activities 

In last we discus about some important technique and steps for developing of eye catch software are as follow:

One of them is preliminary investigation, for any type of software investigation should be necessary.  After the it next process is start system analysis, analysis may be a positive or negative it depend on view of the people.

Third phase is very important system design. In this phase the software should be cost-effective and reliable. Fourth phase is entering coding for the execution of program.

After the coding of program next stage is rules are implementing and in last maintain software for future time.

 Software Requirements

Requirement is the first necessary stage for creating a eye catch software.  It is a looping process for the customer to provide the product.  It can represent information with client to according to their needs.

 

 

 

 

 

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12th class computer science

Here some students facing mostly problems in C language computer science. Now for the help of these write complete phase of C language from chapter number Eight to Fourteen with detail. In chapter wise test it may includes MCQs, short questions and important Long questions.

computer 2nd year

12th class computer science

CLICK HERE for chapter number One to Seven with their important chapter wise tests.

• One
• Two Three
• Four
• Five
• Six
• Seven

The second part of computer science is start from chapter Eight to Fourteen as follow:

• Eight
• Nine
• Ten
• Eleven
• Twelve
• Thirteen
• Fourteen

Important questions of chapter Eleven

., In if statement, true is represented by:        a. 2           b. 1            c. 0           d. 4

2. The case block is end with:
3. End Select             b. End case                   c,. Break                d. Case Else
4. Another term for conditional operator:   
5. Ternary           b. Binary                     c, Loop                d. None of these
6. Switch statement is an alternative:
7. If              b, If- else                c. nested if              d. Nested if else
8. Which of the following is use for making two way decision:
9. If           b. if –else                c. nested if             d,. switch
10. In if statement, false is represented by:        a. 2           b. 1            c. 0           d. 4

SHORT QUESTIONS) 1. What is control structure? 2. What do you know about the ‘If” statement? 3. What is switch statement? 4, Write down the syntax of if else structure? 5. What do you know about the control structure? 6. Make the Flowchart of nested if? 7. Define break? 8. Write a short note on Selection and also make the Flowchart?9 Write a short  note on Function call? 10. Define Repitition?

LONG) 1 Write a program that input a number and find the number is Positive Negative or Zero?

2. What is If-Else structure write the syntax , flowchart , working and Example?
3. What is Nested if. structure write the syntax , flowchart , working and Example?

 

 

Chapter 12 Test

1). One exertion of a known as a Loop:      a. Cycle       b. Duration      c. Iteration     d. Test

2. This statement causes a loop to terminate early:     a. break       b. terminate    c. exist   
3. A loop within a loop is called.       A. terminate loop       b. nested Loop      c. running Loop
4. Which is a loop statement:      a. if      b. switch        c. if-else        d. None
5. semicolon is used at the end of condition:      a. While loop     b. Do while loop     c. For loop
6. This means to increase a value by One:     a. Modules      b. Increment      c. Decrement   

How many types of Loop structure are in C:      a. 2     b. 3         c. 4        d. 5

8. Which of the following Loop is available:      a. While        b. Do-while      c. For       d. All
9. A Loop is never end is:      a. For      b. Infinite         c. terminate        d. While
10. Which loop is called counter Loop:      a. For       b. While        c. Do-while        d. none

 

1). Define nested Loop?      2. What is Infinite Loop?      3. Write the syntax of Do-while Loop?   

4. OUTPUT Int a=1; While(a<=6) { Printf(“\n a=%d”,a); a++; }

5. OUTPUT For(int i=5;i>0;i--) Printf(“LEEWAY”);

6. output Int I; For(m=0; m<10; m=m+2) Printf(“%d \n” ,m);

7. TRACE ERROR #include<stdio.h> #include<conio.h> Void main() { Int a, b; Clrscr()

8. Draw the flowchart of Do-while Loop?    9. Define loop?   10. Define counter controlled Loop?

LONG) 1. Write a program that in a number and find its Factorial using While Loop?  )

And also write code that inputs a numbers and find their Cubes using Do-while Loop?   

Write a program that input a Number and find the table using For loop? 

4. Code write that display Alphabets form A to Z using for loop?   

 

 

Chapter 13 and 14 in C language

., Global variable are created in:       a. RAM            b. ROM            c. hard             d. none of these

2. Another name of built in function:
3. user defined function         b. Library function         c. Sub program        d. Both a and b
4. Local variable are also called:        a. Automatic         b. normal             c. Global            d, None
5. The scope of a variable refer to its:         a. length           b. name          c. Accessibility       d. Datatype
6. The first of function is called ;         a. header           b. body          c. Footer           d. None
7. The printf is a:
8. built in function              b. Local function            c. user defined             d, None of these

SHORT QUESTUION) Define function and why it is important programming? 2. What is function call? 3. What is Function header? 4. Write a short note on Function Body? Compare Local variable and global variable?6. Differ b/w user defined and built in function? 7. Define Function definition?

 

Paper computer      class 12^th          chapter 14

MCQs

1., A file is stored in:           a. Ram         b. hard disk              c., Rom          d. Cache

2, Which function is used to read character from a file;

1. Gets             b. putc               c. fputs              d. fgets
2. Which function is used to write character from a file;
3. Gets             b. putc               c. fputs              d. fgets
4. An array script should be:       a. int           b. float               c. double           d. an array

SHORT QUESTIONS)1. What is Pointer? 2. Write a short note on Stream and also write its types name? 3. Write a short note on EOF?

 

CHECK CHAPTER WISE TEST COMPUTER 11TH CLICK HERE

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important questions for class 12 computer science chapter wise

 Book of computer science include into two parts which one of them is Database and other one is C language. 70 percent paper consist on C language include basic C programs using a if, if else, nested if, switch. while do-while and for loop etc.

computer 12

important questions for class 12 computer science chapter wise

For the improvement of Database you can touch blow first seven chapters:

• One 
• Two 
• Three
• Four
• Five
• Six
• Seven
• Eight 
• Nine
• ten

Important Questions chapter Number Eight

1). The statement written by the programmer are called:   a. Source Code      b. Object code     c. None

2. A computer that start  with a # is called:     a. Keyword      b. Preprocessor directive      c. Comment

3. Which of the following is NOT a high level language:     a. Pascal     b. FORTON     c. Basic    d. None

4. Types of translator are:     a. Assembler       b. Compiler       c. Translator         d. All

5. The lowest level of programming language is:   a. Assembly language      b. Basic     c. Pascal   d. None

6. Void a copy how many bytes in memory:     a. Zero      b. One       c. Two       d. Three

Write the short answer of these Questions.

1). Write a C language to print a message “Leeway”?    2. What is the purpose of # sign?    3. What do you know about c statement?   4. List of some necessary steps to prepare a C program for execution?  5. Write the short key of Compile and Run C program?     6. What do you know about Delimiter?   7. Identify different syntax error in C program?

Include<stdio.h>

Void main ()

  Print(“Hello”)

                                                                                   }

Long Question:  What is Bug. And also explain different types of error? 

Chapter No. Nine in C language 

1). What is the name for a word that has a specific meaning in C:

a. Keyword          b. Token            c. Operator            d. Comments

2. Which of the following operator work with one operator:

a. Unary              b. Binary                 c. Ternary                  d. None

3. Which choice has heighest order of procedure when computing and expression:

a. ()                            b. *                             c. /                           d. +

4. Which of the following operator is used for NOT  operator:

a. &&                           b. II                     c. !                  d. None

5. The Total number of Keyword in C is:        a. 32        b. 35         c. 64          d. 78

6. Which of the following is called Modules:        a. /          b. %           c. +          d. *

1). Define Type casting and also write its types Name?      2. What is Expression?     3. Define Data Types?

4. int i.j.k; i=10; j=3; k= i%j; printf(“%d”,k);

5. { Char ch; Printf(“**/b##/n$$$”) getch(); }

6. int x=10, y=15; x=x++; y= ++y: printf(“%d  %d”,x,y); }

7. Differentiate between Unary and Binary operator?

LONG) 1. Define Relational with its Types? (05)       2. Write a program that perform all mathematical operations? (05)

Chapter Ten

). Write  a program to convert distance kilometer into meters?    2. Write a program that input name age and address from the user and display it on the screen?   3. Write a program that inputs base and height from the user and calculate area of triangle by using the Formula Area=1/2*Base*Height?  4. Write a note on”getch”function? 5. Write a note on “clrscr” function?  6. Write a program that inputs a string and display on screen using a puts function? 7. Write a program that inputs a character using getch() function and display on screen?   8. Write a program that display ASCII code of the character by user?

 9. write down the working of /b? 10. What is the working of integer format specifier?  11. Write a note on input and output functions?

Related Topics 

• Important questions of PPSC
• Important functions of computer
• Chapter wise complete book test class first Year

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computer science papers database

 Here mostly students face some problems in database specially in class second year. For the help of these students all database important questions according to the requirements of Punjab boards write briefly.

It work like a Table. Table is also called Relation. Relation is the combination of vertical and horizontal lines.

computer science papers database

• Chapter One
• Two 
• Three
• Four
• Five
• Six
• Seven

database

Important Questions Chapter One

SHORT QUESTION) 1. Define Query language? 2. What is Report generator? 3. Define Data Dictionary? 4. Define data Integrity? 5. Write a short note on Database? 6. What is data Redundancy? 7. What is DBMS? 8. Difference between Field and Record? 9. What is Back up and Recovery? 10. Write any four advantages of DBMS?

LONG) 1. What is database and also explain three  database Models?

2. What is DBMS and also write the disadvantages of it with detail?

Chapter Number Two Important Questions

1). A key that is used strictly for data retrieval purposes:

1. Secondary keyb. Candidate key       c. Composite key      d.Primary key

2) A table in which the foreign key is found is called:

1. Parent tableb. Dependent table     c. View      d.All

3) Which of the following iS known as control key:    A. Primary key  b.candidate key  c.Sort key

4) A Candidate key is:       a. Primary key        b. The primary key selected to be the of relation

1. Foreign keyd. An attribute or a group of attribute that can be the primary key

5) How many primary keys can a table have :     a.One          b. Two       c.Three       d.None

6) DBA stands for:     a. data basic Administrative       b. data base Administrative

1. Data base Applicationd. Data base Authority

SHORT QUESTION

1). Who is End User?      2. What are Parent and Depend Table?     3.Who is data Administrator?

4). Write the purpose of index  file?    5. Write a short note on DA?    6. How many primary can be defined in a table?     7. Write any two important task performed by DBA?

LONG     What is key and also explain its types?  

Chapter Three Database

1). A relationship between countries and capitals is an example of----------- relationship.

1. One-to-oneB. One-to-many       c. Many-to-many        d.None
2. Which of the following a one-to-many relationship:
3. Mother daughterb. Student-reg No        c. Both       d.None
4. Which of the following is one-to-one relationship:
5. Student reg Nob. Mother daughter     c. Persone automobile      d.None
6. Merging the relation is also known:
7.  
8. Which of the following is related to Modality?
9. Optionalb. Unidirectional         c. Both      d.None
10. Which of the following defines the nature of the relationship:
11. Modalityb. Deision Tree        c. Both        d.None

Chapter Four Database

1., Every relation must have :

1. Primary keyb. secondary key         c, Candidate key             d. none
2. In 3NF, which form of dependency is removed:
3. Functionalb. Non- Functional          c. Associative         d. Transtive
4. Which of the following anomalies that can be caused by redundancy in tables:
5. Insertionb. Deletion         c. Modification           d. All
6. Which of the following anomalies that can be caused by Transitive dependency :
7. Insertionb. Deletion         c. Modification           d. All

5 Table is also called                a. Relation             b. Key              c. Entity         d. None

SHORT) Define entity integrity? 2. Define Referential integrity? 3. What is Synonym? 4. What is Homonym? 5. Write a short Note on normalization? What is partial dependency? 7. Write a short note on  transitive dependency? 8. What is anomalies?

 

Chapter Five 

1.,   A report may be based on :     a. Table        b. Query          v. Both        d. None

2. Columns of table are:         a. table         b. record          c. field          d. Cell
3. The output of query is:         a. Table       b, Form           c. Report           d. Query
4. Each set of related items in a table is called:        a. Table      b. Record         c. Query       d. None

SHORT) 1. Define Query? 2. What is report? 3. Define RDBMS? 4. Define wIzard? 5. What is MS Access? 6. Differ b/w Tital bar and Menu bar?

 

Chapter Six

1., How many types of relationship can be used:        a. 2             b, 3               c. 4            d. 5

2. How many table views are available in Micro soft Access:
3. 4           b. 3        c. 2        d. 1
4. Field properties determine
5. Field size             b. Input mask                 c. Default value          d. All
6. What is Z to A order is called:      a. Ascending        b, Descending
7. Condescending            d. None of these
8. Which type of Query is used to join two table:        a. select          b. crosstable 
9. Find Duplicates                d. Find Unmatch
10. What is the term for characteristics or attribute of an object the determine how the object looks and behave:
11. color                 b. size                    c. property                  d. None

SHORT) 1. What is join? 2. Write a short note on Action query? 3. What is filter and also write its types  name? 4, Differ between ascending sort and descending Sort?

LONG) 1. What is table write a detail on its types and characteristics?

2. What is Query discus its uses and advantages. Also write a complete Note on its types?

 

Chapter Seven

1.,How many are layout of report:        a. 2         b. 3         c. 5          d. 4

2. How many are layout are provided by Ms Access:       a. 2        b. 3         c. 5          d. 4
3. A form within a form is called:     a. Multi form             b. Sub form
4. Main form                              d. None
5. A form that contain a sub form is called:
6. Report           b. Form            c. Main form           d. none

SHORT QUESTIONS) 1. Define form? 2. W rite down any three uses of Form? 3. Write a short note on Sub-Form? 4. Differ between header and Footer?

LONG) 1. What is Form. Write down its uses and Advantages and also write its types with Detail?

2. What is Report. Write down its uses and Advantages and also write its types with Detail?

 

Related Topics

Computer class first year 

PPSC NTS OTS CTS

WORKING OF COMPUTER

For more detail you visit

class 11 computer science important questions

Looking for the articles of the 1st Year Computer Science papers and  Important Questions.

Here are all related chapters test to this post: 1st year computer science test for the help of students.

Any problem you have to ask in the comment section area. 

class 11 computer science important questions

Click here any chapter for your help and check its important questions.

• Chapter One
• Two 
• Three
• Four
• Five 
• Six
• Seven
• Eight 
• Nine
• Ten

computer 11th

Important Questions Chapter Number Seven

. Which of the following is not type of page margin:     a. Left        b. right        c.Center

6. Which of the following is Not graphical user Interface:     a. DOS        b. Linux        c. Unix    d. Al

7. The file can exist but folder can not folder exists in:      a. Files      b. Folder        c. Paths  

8. GUI is:      a. Graphical User Interface     b. Graphic use Icons     c. General user Icons

9. Which of the following is mouse event:      a. Click      b. Right Click     c. Double Clik       d. All

10. Which of the following is keyboard event:    a. Key up     b. Key Down       c. Both A and B

1). Define Operating System?      2. What do you know about GUI?      3. What is Desktop?   4. Define Plug and Play? 5. What is Control Panel? 6. Differ b/w primary partition and Extended partition? 7. What is print Queue? 8. What is Multitasking? 9. What is clipboard? 10. What is window explorer? 11. What is Command line Interface? 12. Write any two events of keyboard? 13. What is my documents folder?

LONG)   1. What is GUI and also explain its types with Detail?     

 

 
Important Questions Chapter Number Eight

1). Which of the is an example of a font weight:   a. Bold      b. Italic      c. 12pt     d.All

2. A font is describe by its:     a. Typeface     b. All       c.Height         d. Presentation

3. Which mode replaces the existing text:   a. replace      b. Insert        c. Overtype       d.All

4. All of the following are text alignment option in MS word except: a. left     b.Right     c.Center    d.Top

5. Which of the following is not a type of page of margin:   a. Center      b.Left       c.Right       d.Top

6. How many orientation types are MS word:     a. one       b.two        c.three      d.four

7. Which menu is used to insert page numbers in documents: a.insert     b. Tools     c. Formats    d.All

8. Tables are used to display:     a. Data      b. Text        c.Graphics        d.All

9. ……………. Function key is used for help:     a.F1         b.F2       c.F3    d.All

10. The maximum zoom of MS-Word documents is:     a.200%       b.500%        c.700%      d.All

SHORT QUESTION

1). What is column?    2.What is Table?       3. Name any four shapes provided by word?     4. How macro in MS Word is helpful for us?    5. What is Word Art in Ms-Word?    6. What is Word Art inserted in documents?   What is header and footer in Word?    8. Give an example of serif and sans-serif font?   9. Write any two ways to insert textbox in Word?    10. What is page formatting?

Most Important Questions chapter number Nine and Ten

MCQs. 1. Formula can only be applied on  .       a. Values            b. Lables              c, Tital         d. None

2. A work book is a group of :                     a, Table           b. Sheet         c. Lables              d. None

3. Which of the following is an absolute address:        a. A1          b. $A1              c. A$1           d. $A$1

4. How many sheets are contained in workbook by default:     a. 3      b. 6         c. 2         d. 7

5. WWW Launched:       a. 1980           b. 1985            c. 1989          d. 1992

6. Symbol that are used in e-Mail:        a. %          b. &         c. #         d.@

7. A web page is written in:       HTTP         b. HTML          c. TCP          d. None

8. How many types of addressing scheme;       a. 2         b. 4         c. 6        d. 7

9. PTCL is a :        a. Net          b. ISP          c. WWW          d. Google

10. Web is also called:           a. WWW          b. Google          c. PTCL           d. ISP

SHORT QUESTIONS) 1./ What is Web server? 2. What is Search Engine? 3. List any 4 ISP’s used In Pakistan? 4. Define HTTP? 5. What is Web browsing? 6. What is Cell? 7. Define Spread sheet? 8. What do you know about 3-D sheet? 9. Define cell address? 10. Differ b/w function and formula? 

 

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important questions for class 11 computer science chapter wise

 Here we talk about most important questions of computer science class first year. Mostly students waist their time in other activities whole year. And at the end of season afraid about exam. Here we evaluate the most important questions of chapter number four, five and six.

CLICK HERE for the description of chapter One, Two and three.

computer papers

 important questions for class 11 computer science chapter wise

• Chapter One
• Two 
• Three
• Four
• Five 
• Six

Important questions Chapter Number 4

1). Many banks provides the facility of:

a.  ATM            b. CAD        c. CAM          d. CBT

2. SUPARCO department gives information about:

a. Weather      b. Chatting       c. Airline        d. ROBOT

3. Many products are designed by using:

a. CAD        b. ATM        c. CAM        d. CBT

4. A----------------- is an automatic programmable machine:

a. ROBOT        b. ATM        c. CAM       d. CBT

5. Which scanner takes many X-rays around the body:

a. CAT       b. ATM          c. CAM         d. ROBOT

6. Computer based weather forecasting depends on accurate  collection of data form:

a. Whether station        b. Television         c. Radar           d. Antenna

SHORT QUESTION

1). Write the complete name of CAD and CAM?   b   2. What is ATM?   3. What is E-banking?    What is robot?     5. What is reprographics?      6. Why is the use of computer technology so important?     7. What is video Conferencing?  8. What is Online Education? 9. How computer is useful in office? 9. What is desktop Publishing? 10. What is ATM? Give three uses of computer in business? 12.Write a complete note on CAD , CAM and CBT?

 

Important questions Chapter Number 5

1).  A computer that concert an entire program into machine language at one time is called:

a. Compiler            b. Interpreter                 c. Commander                 d. None

2. A computer cannot Boot if it does not have:     a. Operating System      b. Compiler      c. Interpreter

3. A group of bits that tells the computer to perform a specific operations is called:

a. Instruction Code     b. Micro Operation       c. Source code         d. Logical code

4. The board used to connect additional devices to the computer are connected to the motherboard:

a. Expansion Solt         b. links           c. Connectors          d. secter

5. Cheking a computer program for error is called:     a. Bug      d. debug        c. correcting     d. Running

6. How many types of language translator are there:      a. 1       b. 2        c. 3         d. 4

7. Which of the following is Need Refresh:        a. RAM         b. SRAM         c. DRAM        d. ROM

8. ALU has units:       a. 2          b. 3               c. 4           d. 5

SHORT QUESTIONS?

1). What is operating System?          2. Differentiate between source code and object code?       3. Differentiate between high level language and Low level language?    4. Differentiate between assembly language and machine language?     5. What is Programming language and also write its types name?

6. What do you know about I/O devices?       7. Name any four high level language?   8. What is CPU?     9. What do you know about Motherboard? 10. Differ b/w RAM and ROM? 11. Define Stack point Register? 12. Define Seiral Port?   13. Why is RAM is Non- Volatile Memory?

LONG) What is language translator and also explain its types with detail?

2. What is System bus and also write a complete Note on its types?

 

Important questions Chapter Number 6

1.. Trojan Horse is an example of:                             a. Virus                      b. Antivirus               c. Hardware           d. Data

2. Additional copy of software is called:                   a. Back up of data   b. Taking of data       c. Password          d. None

3. Which is harmful for the computer:                      A. VIRUS                    b. Antivirus               c. Groupware        d. None

4. Format C is an example of:                                     a. Trojan horse        b. Redlof                   c. Logic bomb         d. Boot sector

5. The symbol of E-mail.                                                A. #                            b. @                            c. *                          d. &

6. PTCL  is a:                                                                a. search engine            b. ISP          c. Internet             d. Web server

7. How many types of Partition are.            A. 2             b.   3               c. 7           d. 4

8. Which is Mouse event>                a. Left  click          b. Key up          c. key down           d. None

Q:2: SHORT QUESTIONS                 1. What is Website? 2. Write a short note on Internet? 3. Define the Search Engine? 4. Explain data Security? 5. What is Antivirus? 6. Write a short note on Password? 7. How can does the virus spread through E-mail? 8. Define the Back up? 9. What do you know about Pirated software?   10. Define the Backup?    11. Write a short Note On Pirated Software? 12. What is Privacy issue? 13. What is the purpose of data security?

Q:3:  What is computer virus and also write its types with Detail?     Q:4: What is Data security. Write its threats and also write any four solutions of data security?

 

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