10th Class Physics Chapter 8 Notes Urdu Medium

Complete Notes on Chapter No.17:  10th Class Physics Chapter 8 Notes Urdu Medium in Physics Urdu Medium written by Professor Sir Fahad Abbas Suib. These computerized notes are very helpful in the preparation of ICT Class 10 for students of the Physics and these are according to the paper patterns of all Punjab boards.

• Our comprehensive 10th Class Physics Chapter 8 Notes Urdu Medium will ensure you're fully prepared for your exams.
• This chapter provides the basics of information and communication technology (ICT) to the students, such as digital communication, and data storage.
• The chapter also helps in the exercise Short and Long Questions with their easy Answers, Numerical Problems, and MCQs to test understanding and application of concepts.
• By reading these notes students will be able to understand the concepts and applications in the era of the fields.
• Describe the components of information technology. 
• Explain briefly the transmission of 1. electric signals through wires 2. radiowaves through air 3. light signals through optical fibres
• Describe function and use of fax machine, cell phone, photo phone and computer.
• Make a list of the use of E-mail and internet.
• Describe the use of information storage devices such as audio cassettes, video cassettes, hard discs, floppy, compact discs and flash drive.
• Identify the functions of word processing, data managing, monitoring and controlling.
• Compare the advantages of high-tech. communication devices with the traditional system through library or internet search.
• We are living in the age of information and communication technology. It is not long ago when the telephone was the only device of communication within the country or abroad. Now a days, in addition to telephone, mobile phone, fax machine, computer and internet are the main sources of contact. These sources have shortened the distances and have brought in contact the whole world. In this chapter, we will study some basic phenomena and devices which are used in modern day information and communication technology. But before going ahead we should know what this information and telecommunication technology is.
• INFORMATION AND COMMUNICATION TECHNOLOGY: 
• In computer terminology, processed data is called information. Computer processes the data and converts it into useful information. This information is transmitted to distant places in the form of sound, picture and computerized data. Information and Communication Technology (ICT) is basically an electronic based system of information transmission, reception, processing and retrieval. ICT is a blend of two fields information technology and telecommunication. The two terms are defined as follows:
• 1. The scientific method used to store information, to arrange it for proper use and to communicate it to others is called information technology.
• 2. The method that is used to communicate information to far off places instantly is called telecommunication.
• "Information and Communication Technology (ICT) is defined as the scientific methods and means to store, process and transmit vast amounts of information in seconds with the help of electronic equipments".
• COMPONENTS OF COMPUTER BASED INFORMATION SYSTEM (CBIS):
• There are five parts that must come together in order to produce a Computer-Based Information System (CBIS). These are called the components of information technology. Now we discuss these components briefly.
• Hardware: The term hardware refers to machinery. This includes the central processing unit (CPU), and all of its support equipment. Among the support equipments are input and output devices, storage devices and communication devices.
• Software: The term software refers to computer programs and the manuals that support them. Computer programs are machine-readable instructions that direct the circuitry within the hardware parts of the CBIS to produce useful information from data. Programs are generally stored on some input / output medium, often a disk or tape.
• Data: Data are facts and figures that are used by programs to produce useful information. It may be in the form of text, graphic or figure that can be recorded and that have specific meaning. Like programs, data are generally stored in machine-readable form on disk or tape until the computer needs them.
• Procedures: These are set of instructions and rules to design and use information system. These are written in manuals and documents for use. These rules or methods may change from time to time. The Information System must be flexible to incorporate these changes.