NCERT Class 11 Informative Practices Working With Lists and Dictionaries
4.1 INTRODUCTION TO LIST The data type list is an ordered sequence which is mutable and made up of one or more elements. Unlike a string which consists of only characters, a list can have elements of different data types such as integer, float, string, tuple or even another…
NCERT Class 11 Informative Practices Understanding Data
5.1 Introduction To Data Many a time, people take decisions based on certain data or information. For example, while choosing a college for getting admission, one looks at placement data of previous years of that college, educational qualification and experience of the faculty…
NCERT Class 11 Informative Practices Introduction To Structure Query Language
8.1 INTRODUCTION We have learnt about Relational Database Management System (RDBMS) and purpose in the previous chapter. There are many RDBMS such as MySQL, Microsoft SQL Server, PostgreSQL, Oracle, etc. that allow us to create a database consisting of relations and to link…
NCERT Class 11 Informative Practices Introduction To Numpy
6.1 INTRODUCTION NumPy stands for ‘Numerical Python’. It is a package for data analysis and scientific computing with Python. NumPy uses a multidimensional array object, and has functions and tools for working with these arrays. The powerful n-dimensional array in NumPy speeds…
NCERT Class 11 Informative Practices Emerging Trends
2.1 INTRODUCTION TO EMERGING TRENDS Computers have been around for quite some time now. New technologies and initiatives emerge with each passing day. In order to understand the existing technologies and have a better view of the developments around us, we must keep an eye on…
NCERT Class 11 Informative Practices Database Concepts
7.1 Introduction After learning about importance of data in the previous chapter, we need to explore the methods to store and manage data electronically. Let us take an example of a school that maintains data about its students, along with their attendance record and guardian…
NCERT Class 11 Informative Practices Computer System
1.1 INTRODUCTION TO COMPUTER SYSTEM A computer is an electronic device that can be programmed to accept data (input), process it and generate result (output). A computer along with additional hardware and software together is called a computer system. A computer system…
NCERT Class 11 Informative Practices Brief Overview of Python
3.1 INTRODUCTION TO PYTHON An ordered set of instructions or commands to be executed by a computer is called a program. The language used to specify those set of instructions to the computer is called a programming language for example Python, C, C++, Java, etc. This…
CBSE Class 11 Informatics Practices Software Concepts
Software Concepts & Productivity Tools Computer being an electronic device, understands only electric pulses i.e. whether the electricity is flowing through a circuit or not. We denote these two states of pulses (electricity flowing & not flowing) by 1 and 0, and thus…
CBSE Class 11 Informatics Practices Sample Applications
Sample Applications - Case Studies Types of Applications There are several types of applications, which can be developed to simplify our life. All of us must have used many such applications several times such as playing games online, buying movie tickets online, making…
CBSE Class 11 Informatics Practices Programming Guidelines
Programming Guidelines GUI Application Development Guidelines Some good application development guidelines are: 1. Understand the need of the application before starting the development. 2. Find out all possible inputs, which are required to produce the desired result or…
CBSE Class 11 Informatics Practices Programming Fundamentals
Programming Fundamentals Variables After observing the above form, it is clear that we are accepting the number of apples, bananas and oranges in three separate text fields and calculating the total number of fruits by simply adding the three values on the click of a button.…
CBSE Class 11 Informatics Practices MySQL
MySQL Ms. Sujata is a Class teacher of Class XI. She wants to store data of her students i.e. Names and marks secured, in a database. A database is used to house data in the form of tables. She uses a CREATE DATABASE statement to create a new database named School. mysql…
CBSE Class 11 Informatics Practices Introduction to SQL
Introduction to MySQL These days computerized databases can be seen being used almost everywhere. The police force uses various computerized databases to help them track criminals and solve crimes. A library stores details of all their books, in a computerized database. When…