Showing posts with label class12-Informatics Practices. Show all posts
Showing posts with label class12-Informatics Practices. Show all posts

Sunday 1 October 2017

CBSE Class 12 - Informatics Practices - Java GUI Programming - Revision Tour-1 (Q and A) (#cbseNotes)

Java GUI Programming - Revision Tour-1
(Q & A)

CBSE Class 12 - Informatics Practices - Java GUI Programming - Revision Tour-1 (Q and A) (#cbseNotes)

Exercise Solutions of Sumita Arora Textbook


Q1: What is RAD?

Answer: Rapid Application Development (RAD) describes a method of developing software through the use of pre-programming tools or wizards. The pre-programmed tools or controls are simply dropped on a screen to visually design the interface of application.


Q2: What are RAD tools?

Answer: RAD tools are the tool that enables one to create applications in shorter time as compared to conventional language. Common examples of tools are:

NetBEans IDE: Provides RAD tools for Java GUI Application development
C++ Builder: RAD tool to develop Windows GUI applications in C++
Visual Basic: RAD tool to develop Windows based applications in BASIC language

Saturday 23 September 2017

CBSE Class 12 - Computer Science/ Informatics Practices - Database Concepts - Important Terms (#cbseNotes)

Basic Database concepts - Important Terms

CBSE Class 12 - Computer Science/ Informatics Practices - Database Concepts - Important Terms (#cbseNotes)

Data:
Raw facts and figures which are useful to an organization. We cannot take decisions on the basis of data.


Information:
Well processed data is called information. We can take decisions on the basis of information.


Field:
Set of characters that represents specific data element.


Record:
Collection of fields is called a record. A record can have fields of different data types.


File:
Collection of similar types of records is called a file.


Data Model:
Data models capture the nature of and relationships among data and are used at different levels of abstraction as a database is conceptualized and designed.


Sunday 25 June 2017

CBSE Class 12 - Informatics Practices Syllabus (2017-18) (#cbseNotes)

Informatics Practices Syllabus (2017-18)


CBSE Class 12 Informatics Practices

CBSE Class 11 Informatics Practices - Syllabus (2017-18) (#cbseNotes)

Here presents the prescribed syllabus for Class 12 Informatics Practices for the curriculum 2017-18.


Thursday 1 June 2017

CBSE Class 12 - Computer Science / Informatics Practices - Computer Networking - Data Transmission Media - Q and A (#cbseNotes)

Data Transmission Media

Computer Networking

Class 12 - Computer Science / Informatics Practices

Q & A

CBSE Class 12 - Computer Science / Informatics Practices - Computer Networking - Data Transmission Media - Q and A (#cbseNotes)



Q: Define transmission media.

Answer: The means or channel through which we send our data from one place to another are called transmission media.


Q: What are different categories of transmission media?

Answer:
Guided or Wired Media- Examples are
Twisted Pair Cable
Co-axial cable
Fibre active cable

Unguided or Wireless Media - Examples are:
Satellite
Microwave
Wifi
Radiowave


Q: Define baud.

Answer: Baud is used as measurement for the information carry of a communication channel. It is measured in Kbps (kilobits Per Second), KBPS (Kilo Byte Per Second), and Mbps (Mega bits Per Second )


Tuesday 30 May 2017

CBSE Class 12 - Computer Science / Informatics Practices - Computer Networking - Q and A (#cbseNotes)

Computer Networking 

Q and A
CBSE Class 12 - Computer Science / Informatics Practices - Computer Networking - Q and A (#cbseNotes)



Q1: What is a computer network?

Answer: A computer network is a collection of interconnected computers. Two computers are said to be interconnected if they are capable of sharing hardware, software and exchanging information.


Q2: Name the architectures that are involved in network design?

Answer:
Peer to peer (P2P)
Client - Server
Hybrid of client-server and P2P

Monday 8 May 2017

CBSE Class 12 - Informatics Practices - Important Abbreviations To Memorise (#cbseNotes)

IMPORTANT ABBREVIATIONS USED IN IP

CBSE Class 12 - Informatics Practices - Important Abbreviations To Memorise (#cbseNotes)

ASCII: American Standard Code for Information Interchange

CSS: Cascading Style Sheet

CRM: Customer Relationship Management

CAPTCHA: Completely Automated Public Turing Test Tell Computers and Human Apart

DDL: Data Definition Language

DML: Data Manipulation Language

GNU: GNU’s not UNIX

ISCII: Indian Standard Code for Information Interchange

ICT: Information and Communication Technology