Web1. Twisted-pair Cable. A cable in which two independently insulated wires are twisted around each other is called twisted-pair cable. This type of cable is least expensive and used in old telephone networks. The wires are twisted to reduce the electromagnetic effect and also minimize the cross talk. Advantages. WebJun 19, 2024 · In class 9 exams, many questions come from books published by NCERT. Students should go through all questions and NCERT solutions for Class 9 to properly prepare for exams. Its recommended by all teachers that NCERT textbooks are the best book for students who are studying Computer Science in Grade 9. These books will help …
COMPUTER APPLICATIONS - CBSE
Computer applications I (Theory & Practical) Pdf notes CHAPTER 1: INTRODUCTION TO COMPUTER APPLICATIONS. Computer Application/Application software Classification of Computer software Stating the applications in a computers Computer – Applications. CHAPTER 2: INTRODUCTION TO … See more Computer Application/Application software Classification of Computer software Stating the applications in a computers Computer – Applications See more Introduction to Word processing Features of a word processor Examples of word processor programs Types of word processing applications Features of Standard Word Processors Opening Microsoft Word 2007 … See more Introduction to OS Function of Operating system Types of Operating System Use of operating systems command DOS Internal and External Commands See more Introduction to Spreadsheets The Main Spreadsheets Basic MS Excel Skills Excel Formula and Functions Making Changes to the Contents of a … See more WebMar 9, 2024 · Introduction to IT and ITeS Industry Class 9 Notes Computer : It is an electronic device which takes data as input, processes it and produces the results as output. Data : Data refers to the raw facts and figures. Information : Processed data is called information Information Technology : Information Technology (IT) means creating, … trailyard coffee shop
Class 9 Computer Science Chapter 1 Basics of Computer System
WebDefine the following with examples each. i) Object: It is a unique entity, which contains data and functions (characteristics and behavior) together in an OOP language. Eg. Book:- Characteristics Chapter, pages, topics. Behaviours Used to read, prepare notes. ii) Class: Class is a set of similar objects. WebMention three main features of a computer. Ans: The main features of a computer are: Speed: A computer works with much higher speed. Accuracy: Computer perform calculation with 100% accuracy. Diligence: A computer can perform millions of tasks or calculations with the same consistency and accuracy. WebClass 9 Computer Science Notes are free and will always remain free. We will keep adding updated notes, past papers, guess papers and other materials with time. We will also … the script merchandise