# CBSE Revision Notes for class 11 Informatics Practices

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## CBSE Revision Notes for class 11 Informatics Practices

Download CBSE Revision Notes for CBSE Class 11 Informatics Practices Programming and Computational Thinking Basic computer organisation: describe a computer system and mobile system, CPU, memory, hard disk, I/O, battery, power, transition from a calculator to a computer Familiarization with the basics of Python programming: a simple “hello world" program, process of writing a program, running it, and print statements; simple data-types: integer, float, string Introduce the notion of a variable, and methods to manipulate it (concept of L-value and R- value even if not taught explicitly) Knowledge of data types and operators: accepting input from the console, assignment statement, expressions, operators and their precedence. Conditional statements: if, if-else, if-elif-else; simple programs: e.g.: absolute value, sort 3 numbers, divisibility. Notion of iterative computation and control flow: for, while, flowcharts, decision trees and pseudo code; write a lot of programs: interest calculation, EMI, tax calculation (examples from GST), standard deviation, correlation Lists and dictionary: finding the maximum, minimum, mean; linear search on a list of numbers, and counting the frequency of elements in a list using a dictionary. Text handling: compare, concat, and substring operations. Introduction to Python modules: creating and importing.

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Download CBSE Revision Notes for CBSE Class 11 Informatics Practices Data Handling 4.2.1. Introduction to Python Pandas Introduction to data structures in Pandas: Series, and Data Frame Operations on a Series: head, tail, vector operations Data Frame operations: create, display, iteration, select column, add column, delete column Binary operations in a Data Frame: add, sub, mul, div, radd, rsub Matching and broadcasting operations Missing data and filling values. Comparisons, Boolean reductions, comparing Series, and combining Data Frames. 4.2.2. Transfer data between CSV files/SQL databases, and Data Frame objects.

Download CBSE Revision Notes for CBSE Class 11 Informatics Practices Data Management Relational databases: idea of a database and the need for it, relations, keys, primary key, foreign key; Use SQL commands to create a table, keys, and foreign keys; insert/delete an entry, delete a table. Basic SQL: select, project, and join; indexes, and a lot of in-class practice.

Download CBSE Revision Notes for CBSE Class 11 Informatics Practices Society Law and Ethics Cyber safety Cyber safety: safely browsing the web, identity protection, confidentiality, social networks, cyber trolls and bullying Appropriate usage of social networks: spread of rumours, and common social networking sites (Twitter, LinkedIn, and Facebook) and specific usage rules. Safely accessing web sites: adware, malware, viruses, Trojans Safely communicating data: secure connections, eavesdropping, and phishing and identity verification.

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# CBSE Class 11 Notes and Key Points

• CBSE Revision notes for Class 11 Informatics Practices PDF
• CBSE Revision notes Class 11 Informatics Practices – CBSE
• CBSE Revisions notes and Key Points Class 11 Informatics Practices
• Summary of the NCERT books all chapters in Informatics Practices class 11
• Short notes for CBSE class 11th Informatics Practices
• Key notes and chapter summary of Informatics Practices class 11
• Quick revision notes for CBSE exams

## CBSE Class 11 Informatics Practices Chapter-wise Revision Notes

• Ch-1 Introduction to Computer systems
• Ch-2 Introduction to Programming
• Ch-3Relational Database Management System
• Ch-4 IT Applications

Key Notes for CBSE Board Students for Class 11. Important topics of all subjects are given in these CBSE notes. These notes will provide you overview of the chapter and important points to remember. These are very useful summary notes with neatly explained examples for best revision of the book.

## CBSE Class-11 Revision Notes and Key Points

CBSE class-11 Key points and summary of the lessons is given under this section for Chem, Phy, Maths, Bio, Acc, Bstudy, Eco and other subjects. The notes includes all concepts given in NCERT books and syllabus issued by CBSE for class 11. Key notes are 'to the point' capsules for quick revision of the chapter. We have covered the whole syllabus in these notes.

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