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Information Technology · Class 12 Commerce

Ch 4IT Applications - II — Class 12 Information Technology, concept-first.

In your first-year Information Technology course you learned how a computer system is built, how it is programmed, and how data is organised in a database. This second-year applications chapter puts all of that together for a single, very practical goal: building a working database application — the kind of software a…

12

Q&A

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Key concepts

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E-Business

E-business is the running of any business activity — trading, inventory, accounts, supplier dealings and customer service — with the help of computers, software and the internet.

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Chapter contents

The NCERT structure, section by section. Open a section to see its questions, then read the concept-first solution.

Overview

In your first-year Information Technology course you learned how a computer system is built, how it is programmed, and how data is organised in a database.

1

Concept of E-Business

What e-business means. E-business (electronic business) is the carrying on of any business activity with the help of computers, software, the internet and other information and communication technolog…

2

Anatomy of a Database Application — Front-End and Back-End

What a database application is. A database application is a piece of software that lets users store, retrieve, update and manage data that is kept in a database.

3

The Front-End Interface

What the front-end interface does. The front-end interface is the collection of screens and controls through which a user works with a database application.

4

The Back-End Database

What the back-end holds. The back-end of a database application is a relational database managed by a relational database management system (RDBMS).

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Front-End to Database Connectivity

Why connectivity is needed. The front-end and the back-end are two separate pieces of software — often even on two different computers.

6

Developing a Database Application — Bringing Front-End and Back-End Together

This section pulls the whole chapter together by building one small application from start to finish. Suppose a shop wants a simple program to keep its customer records — to add a new customer, search…

More questions

12 Q
+Show 5 questions5 questions
  1. Q1Running the whole of a business — including inventory, accounts, supplier dealings and customer service — with the help of information techn…Free
  2. Q2In a database application, the part that the user sees and interacts with — the forms, buttons and text boxes — is called the: (a) Back-end…Free
  3. Q3Which SQL statement is used to add a new row of data into a table? (a) SELECT (b) UPDATE (c) INSERT (d) DELETEPreview
  4. Q4The software component that acts as a translator between the front-end program and a particular database is called the: (a) Compiler (b) Dri…Preview
  5. Q5Checking a user's input at the front-end — for example, refusing a blank name or a negative age — before it is sent to the database is calle…Preview
+Show 4 questions4 questions
  1. Q6Distinguish between e-business and e-commerce.Free
  2. Q7What is meant by the 'front-end' and the 'back-end' of a database application? State one function of each.Free
  3. Q8List and briefly explain any four common controls used to build a front-end form.Preview
  4. Q9State the standard steps a front-end follows to connect to a back-end database and run a query.Preview
+Show 3 questions3 questions
  1. Q10What is e-business? Explain its main features and the common models of e-business (B2B, B2C, C2C, C2B) with an example of each.Free
  2. Q11Explain the two-part (front-end and back-end) structure of a database application. Why are the two parts kept separate, and how do they work…Preview
  3. Q12Describe, with the steps and short code, how a customer-record database application is developed by bringing the front-end and back-end toge…Preview