Also, Get CBSE Class 9 Hindi Sample Papers with Answers in PDF Form. Access latest Sample Papers for Class 9 Computer Science as per CBSE and in book for Class 9 Computer Science as per syllabus issued by CBSE and NCERT. CBSE Class-9 Syllabus (Computer Applications). COMPUTER APPLICATIONS CLASS IX (Code No) Effective from the session 1. CBSE Books -Class XIDownload ePub Reader · Home · Classes I-V · Classes VI- VIII · Classes IX-X Computer Science. Class: XI. Lang: English. Sub: IT. book.
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The latest CBSE syllabus for class 9 has some very specific changes that the revised syllabus before downloading books and start preparing for new session. Find below the complete syllabus for CBSE Class 9 Computer. Information and Computer Technology Class IX. Ist Edition: . I am happy to release Information and communication Technology Book for Class – IX. I would. COMPUTER MATERIAL CLASS 3 to Click here for> Class III. Click here for > Click here for> Class VIII. Click here for> Class-IX. Click here for>.
At a Glance summarizes a chapter enabling a quick review of the concepts learnt. Application-Based Questions within Exercises enables students to develop their analytical skills. Work Out! For the Teacher provides useful suggestions for developing complex or difficult concepts. Two formative assessment papers and one summative assessment paper based on the latest examination pattern complete the coverage for each term.
A Dictionary of Computing. Fast Forward- Revised Edition Coursebook 7. Fast Forward- Revised Edition Coursebook 8. Foundations of Information Technology Class Matrix Computing for Student Book 1.
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At Next Education we believe that a child must arrive at learning through interactive and engaging fun-filled activities. The NextBooks are designed to include English, numeracy and general awareness to impart an integrated and holistic learning to a child. A typical laptop computer has all the facilities available in microcomputer. Its cost varies from several thousand dollars or less.
Compared to full-size computers, palmtops are severely limited, but they are practical for certain functions such as Written by: Maryem Javed Computer and Maths teacher The Educators School Kasur Campus E-mail: Princesmary92 yahoo. Palmtops that use a pen rather than a keyboard for input are often called hand-held computers or PDAs Personal Digital Assistant Because of their small size, most palmtop computers do not include disk drives.
Foundations of Information Technology Class 9
Describe the Impact of computers and Internet on society. Ans: Computers and the internet allows society to communicate with each other quickly and easily, provides society with a huge information database and multiple sources to get information and allows humanity to do things that were not possible before the invention of both the computer and the internet.
Probably the most important on our society is on information sharing.
Education: Computers are very helpful in education. Educational institutes, from primary university level, are using computers for various learning activities.
Students can prepare their projects easily with the help of computers. Many websites provides online education. The user can download educational material, books and tutorials. Some universities provide online lectures for the students.
Business: Computer is now being widely used in business and industry. Any business organization can use computers for marketing their products. Computer is also used to manage the distribution system, advertising and selling activities.
It can also be used in deciding pricing strategies. These are also widely used in business community to reduce the administrative paperwork and cost.
The use of computer at banks has provided many benefits. It saves time and provides convenience for customers. Many banks provide the facility of ATM machines that is used to withdraw cash directly from machine. Banks provide credit cards for downloading things using internet. You can access and manage all of your banks accounts, from one site. Most of the banks now work on online banking system.
Stock Exchange: Stock Exchange is the most important place of businessmen. Many stock exchanges use computers to conduct bids. The stock brokers perform all trading activities electronically. They connect with computer where brokers match downloaders with sellers. It reduces cost as no paper or special building is required to conduct these activities. CRUX Computers has taken the business activities to new horizons, today it is very possible to commence business on a table using a single computer.
Thanks to internet that now we can get any kind of information we need in just few seconds. A technological revolution is changing our way of life; the way we live, work and play.
What is computer language? Write a note on computer languages. Each computer language has certain rules. These rules are called the syntax of that language. There are further subdivided into two types. Machine Language Assembly Language Machine Language: A language which is directly understandable by the computer without being translated is called machine language. Characteristics: I. It is a machine dependent Language.
It is also called first generation Language. It is written in the form of binary numbers that is in the form of 1 and 0. Program written in the machine language is run very fast. Program development in machine language is very difficult. Assembly Language: A language which has same features as machine language but uses symbols instead of 1 and 0 and also need to be translated before execution is called assembly language.
It was developed in It is classified as second generation language. We use symbols or mnemonics code, so it is called symbolic language. The program used to translate assembly code into machine language is called Assembler.
High level languages are close to human languages and far from the machine language. These are also called English Oriented Language. These are difficult for machine. These are machine independent languages which are also known as third generation languages. It is easy to operate, easy to understand and easy for programming. The computer instructions are executed by the order in which they are written. These instructions tell the computer what to do and how to do.
These languages are called third generation languages 3GL.
Computer Applications: A Textbook for Class IX
A computer program is written as a collection of number of objects. Each object performs specific task. It consists of data and function. Data base Query Language: These languages are based on special kind of database called a relational database.
These languages are used to store and retrieve data from a database. And also describe their types. Ans: Language Translators: Programs written in high level languages must be converted into machine language for execution by the computer.
Special program are used to convert a source code into machine code. These programs are called Language Translators or Processor.
There are three main types of language translators. Compiler Interpreter Assembler Compiler: The language processor that translates programs written in high-level language as a whole is called Compiler.
The compiler translates the source code into object code. The computer directly executes the object code. If there is any error in the source program, the compiler specifies the error at the time of compilation. All errors must be removed before the compiler can successfully compile the source program. Source program Compiler 2. Interpreter: 26 The language that executes a source program by translating and executing one instruction at a time is called Interpreter.
It does not create any object file. It translates the source program each time the program is executed. Assembler : A program that translates an assembly code into machine code is called Assembler. The assembler is a system program that is supported by the computer manufacturer. It is written by system programmer with great care. It also assembles the machine code in the main memory of the computer. Short Notes Q1: Define Assembler.
Ans: The program used to translate assembly code into machine language is called Assembler. OR An assembler is a program that translates an assembly language program into machine code. OR Assembler is a type of translator.
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It also works in the same way as compiler and interpreter. OR Assembler is a program, which translate an assembly language program to its machine language equivalent. Q2: Define Compiler. A compiler first reads the whole program before executing it. Q3: Define Interpreter. Ans: The language that executes a source program by translating and executing one instruction at a time is called Interpreter.
OR An interpreter is another type of translator used for translating high-level language into machine code. It takes one statement of a high level language and translates it into a machine instruction, which is immediately executed. Q4: Define Pascal. It is a highly structured programming language. It was developed in 's after the concept of structured programming.
OR In Balise Pascal, the 18 year old son of a French tax collector, invented a numerical wheel calculator to help his father in calculation. This device was known as Pascaline and was only able to add two numbers. Q5: What was difference engine?
CBSE Syllabus for Class 9 Computer Applications 2018-19
He began to design an automatic mechanical calculating machine which he called difference engine. Q6: What was analytical engine?
The analytical engine could add, subtract, multiply and divide in automatic sequence at a rate of 60 additions per second. OR The construction of what would now be called a general purpose fully program controlled automatic mechanical digital computer, Babbage called this idea an Analytical engine. Q7: What was Punched card?
Ans: In , an American inventor Herman Hollerith applied the idea of punch boards in the form of punch cards in computers for input and output. OR In , Herman Hollerith developed the first electro-mechanical punched card tabulator.
The tabulator could real information that had been punched into cards. These cards were maintained in stack form solutions to different problems could be stored on different problems could be stored on different stacks of cards and accessed when needed.
It was close the English. A person having no knowledge of programming can learn it easily. It can be used for business and scientific applications. It was developed in early 70s. It is highly structured programming language. It is very popular in computer science. It was designed to solve mathematical, scientific and engineering problems. It has been revised many times. Q9: What are high level programming languages?
How they differ from Assembly language?Very advanced technology was required to fabricate to the ICs. She has been the principal of three well-nown schools. Shubhchander Bajaj This book does not contain Scrath or Python programming.
About Sumita Arora. In fact, digital computers used digital signals, which can distinguish between just two values 0 and 1.
NCERT Books For Class 9 Computer (ICT) Free PDF Download (2019-20)
Distribution of Marks 3. Answer: Difference between machine language and assembly language are as follows: Machine Language Machine language uses binary digits 0s and 1s to write a program.
Laptop Computer: The smallest computer in size has been developed. It is a machine dependent Language. Use auto-format, track changes, review comments, use of drawing tools, shapes and mathematical symbols.
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