CBSE Class 12 Informatics Practices IT Applications Assignment

CHAPTER 18
IT- Applications

VERY SHORT QUESTIONS-ANSWERS

Q.1: Give some examples of input values, where Radio Button and Check Boxes should be used for efficiency in the application.
Answer : for selection criteria applying, Providing optional choices.
 
Q.2: What are the important guidelines we should keep in mind while developing an efficient application?
Answer : It should be user friendly, reliable and should be maintained database with consistency and integrity with GUI.
 
Q.3:  Is it a good practice to take in the inputs using TextFields only? Justify your answer.
Answer : TextField is used to get small textual information like Name, RollNo, email address, quantity, etc. Disabled/Uneditable TextFields are also used to display such information so it is a good practice to take in the inputs using TextFields. But we may also use Dialog to take input.
 
Short Question-Answers

Q.1: Write Short Notes on : e-Governance, e-Business, e-Learning.
Answer : e-Governance involves applications which are used by government agencies/organizations to provide better governance.
e-Business applications use technology to effectively access and deliver business related services and perform various kinds of business transactions.
e-Learning applications use technology to effectively deliver and monitor learning and teaching processes. They help the trainer to organize and manage his/her lesson plans, present them to students/learners, evaluate and take the feedback to enhance & fine-tune this process in future.
 
Q.2: What are Front-end (The user interface) and back-end (The database) ?
Answer : An IT application has two major parts: Front-end (The user interface) and backend (The database) .The front-end of an IT application is usually a group of one or more forms through which the user enters the input values and is shown the corresponding output. A good front-end ensures the acceptance of the application in the first go. The back-end of an IT application is the database in which all the data is stored. This database resides in the server.
All the data which is requested by the front-end is supplied by back-end. A good back-end ensures sustainability, efficiency and easy modification of the application.
 
 
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