DAV Class 8 Computer Chapter 8 Looping in QBasic and Project Handling Question Answer Notes
DAV Class 8 Computer Chapter 8 Looping in QBasic and Project Handling Question Answer Notes Solution by Expert Computer Teacher. DAV Class 8 Computer 8th Chapter Looping in QBasic and Project Handling for Students of DAV Schools.
Lesson No 8
Looping in QBasic & Project Handling
(Q1) Fill in the blanks:-
(1) Looping is the repeated execution of certain steps (statements forming BODY of Loop) for a fixed number of times.
(2) It is the systematic activity which has to be completed in a given time is termed as Project.
(3) Formatting is the process to prepare hard disk of a computer to store data.
(4) Defragmentation is the process of reorganizing the computer memory to arrange all the files in continuity and contribute all the blank chunks together to form a large blank space in memory.
(5) Computer virus is a malicious that disturbs the normal functioning of computer.
(Q2) State whether the following statements are True or False :-
(1) Virus is a computer program that replicates itself and cause problem with the smooth functioning of computer. False
(2) Malware is the malicious software programmed to steal some sensitive and confidential data from computer. True
(3) Anti-virus is the program which protects our computer form harmful programs known as virus. True
(4) Anti-malware is the program which are used to scan and remove the malwares from the computer. True
(5) Loop is when the action is to be performed a fixed number of times. True
(Q3) Answer the following questions in one or two sentences each:-
(1) What is meant by Looping
Ans :- Looping means it is an act where the some statements (which are forming BODY of loop) for a fixed number of times.
(2) What is FOR-NEXT statement? Explain the three steps involved in making a loop?
Ans :- This statement is helpful in simplifying the process of looping (when some statements are to be repeated for fixed number of times).
There are basically three steps which are involved in making a loop which are :-
(i) The control variable is initialised
(ii) Condition is been checked with the final value
(iii) Incrementing/decrementing of control variables.
(3) What is a Project
Ans:- Project is the part of an activity that needs to be completed systematically within the specified time limit.
(4) What is a Virus?
Ans:- Virus is a software/computer program which is created with the intention of hampering the working performance of the computer.
(5) What is a Worm?
Ans:- It is the computer program which replicates in itself and disturbs the properly functioning of computer.
(6) What is Malware?
Ans:- Malware is the type of dangerous software specially designed with the intention of stealing someone’s important information from the computer.
(7) What is the use of Anti-virus and Anti- Malware
Ans:- Antivirus is a software program that is been created to protect our computers from the very harmful computer program named as Virus. Antivirus helps in removing the virus from the computer and makes the computer to function smoothly. Whereas Anti -Malware also work same as the Antivirus, which means it also scan the computer for searching malwares and removes it from the computer.
(8) What is Formatting
Ans:- Formatting means to delete all the unwanted data from the hard disk of the computer and making it capable of storing the data again. One must take much care while formatting, as if carelessness will lead the deletion of important files on the hard disk.
(9) What is Defragmentation
Ans:- It means transferring of memory used space at one place/side and the making the empty memory space on the other place /side. This process is completed by using the computer program called as defragmenter. And the process of shifting of memory spaces is to be termed as Defragmentation.
(Q4) Answer the following questions in brief:-
(1) Write down the steps involved in Looping
Ans :- Following are the steps which are involved in Looping are :-
(i) Initialization of Control Variable (COUNT = 0)
(ii) Body of the loop can be formed by the repetition of statements
(iii) Increasing the values of Constant Variable (COUNT = COUNT + 1)
(iv) Checking the Control Variables against the FINAL (COUNT < FINAL) It goes back to the body of the loop, when the condition is TRUE It moves to the next step (statement), if the condition is FALSE
(v) Display “LOOP OVER”
(vi) END
(2) How does the FOR-NEXT works?
Ans:-
(i) The initial value gets assigned to the control variable, when the control name comes/appears to FOR statement for the very first time.
(ii) The statements which are applied between the FOR and NEXT are only been executed.
(iii) The value of the Control variable is increased by NEXT statement by 1 and transfers the control to FOR statement (beginning of Loop).
(iv) When the Value of Control are been checked against the final value, If incase, the Value of Control is less or equal to the Final value, then the statement of Final value in body of loop are been repeated.
(v) If the value of the control variable is more than Final value, the control goes out of the loop and the statement that is given after the NEXT is executed.
(3) Write down the characteristics of a Project
Ans :- The characteristics of a project are as followed :-
(i) Every project that is to be made/created must have its purpose/goal to be specified.
(ii) Project contains of arrangement of tasks and sub-tasks
(iii) Every task is the project must have the vision/reason and it should be very much clear.
(iv) The dead line of time must be allotted while creating the project. The project must be completed within the specified given deadline.
(v) Every project has its own time limit specified.
(4) Explain the concept of Project Management Cycle
Ans:- It means to complete the project properly, certain steps are been followed. Such steps are to known as Project Management Cycle.
Project Management Cycle
The steps which are included in the Project Management Cycle are as followed:-
(i) Identification and Planning:- Before starting with the project work, the most important thing that is done is to recognize/realise/identify the main aim of the project, and as per it the planning must be done to achieve the desired objective within the given specified time limit.
(ii) Coordination and Organization:- Each and every tasks/activities need to be completed properly within the given time limit. When all the tasks are completed, they are been combined together to get the final project.
(iii) Implementation:- Once all the tasks/activities of compiling are done, then the final project execution is been done.
(iv) Monitoring:- The supervision of tasks are done thoroughly for the smooth running of the activities involved in the project.
(v) Evaluation and Testing:- All the tasks involved in the project are properly evaluated and then the project is been executed finally.
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