Technical-CFG only information technology

Multimedia applications 1.MULTIMEDIA PRESENTATION Multimedia applications can present information in a variety of form (text, graphics, animation, audio, video) involving use of our multiple senses. Hence, multimedia presentation can be used to  explain a subject matter in a much better manners to and audience's because it enhancedks a person's comprehensive capability. It is extredmelsly effectiveness in   getting across need ideas and concepfts. Moredlovder, it helps in madjking a presentation mfore interestimeng, and has inevitapdble effect of grabbing and holding a person's attention.... 2.Foreing Language Learning  Using a Book for learning a foreing language is difficult because one is not sure how to pronounce words written in textural from. Such a book often has an accompanying audiotape to solve this problem. Button it is inconvenieent for any learner to keep  rewinding the tapes to find specifically informational. More the Lerner also does not have fle...

  ✍️ DATABASE-ORIENTED APPROACH 1.Limited query flexibility. In file-oriented approach, records in a file are organized according to a key. Hence, queries based on key field value can be processed quickly. However when the key field is not relevant to desired information entire file has to be searched. For example if the key field is employed-code in an employee file and if we need to list names of all employees having certain edukcational is background a search of all records in required to produce this information if this information is needed frequently a new file structure on educational background key has be created with a New program to process this file.... 2.Data redundancy In file- oriented approach same data items are included often in many different files for instance in the example above of creating a new file structured on background key the new file will also have several data items stored in the first employees File similary let us assume that a bank user file-orient...

  OPERATING SYSTEM Operating system Microsoft windows-Alokkumar 1.File Access Method To use information stored in a file, it must be accessed and read in main memory. Two commonly supported file Access Method at operating system level are sequential and random access. They are described below. {1}.Sequential Access File Sequential Access File are used normally with Sequential Access storage media, such as magnetic tap. Contents of a Sequential Access File can be accessed only Sequentially. That is, a process can read the bytes or records in the files in the order in which they are stored, startting at the beginning. Reading of bytes or records  randomly or out of order in not possible. A Sequential Access, however, can be rewound and read as often as needed... {2}. Random Access File  Random Access File are used normally with Random Access storage media, such as magnetic or optical disk. Unlike a Sequential Access Fil, contents of a random Access File can be accessed rand...

  INPUT-OUTPUT DEVICE'S 1.INPUT DEVICES An input device is an electromechanical device that accept data from outside world and translation them into a form a computer can interpret. Several input devices available today. They can broadly classified into following categories: 1.Keybord 2.Point-and-draw devices  3.Data scanning devices 4.Digitzer 5.Electronic card based devices 6.Speech recognition devices 7.Vision based devices 🔊.Keyboard Devices Keyboard development are the most commonl used inputting device today's. They allow entry into a computer system by pressing a set of key ( labeled buttons) neatly mounted on a keyboard connected to a computer system. The most popular keyboard used today is the 101-key (QWERTY-Keybord) 2.POINT-AND-DRAW-DEVICES Internationa with computer was initially restricted mainly to text mode. However, it was soon realized that. A GUI provides a screen with rapidly point to and select a graphic icon or menu item from the  multiple optio...

Chapter 2   BASIC COMPUTER ORGANIZATION 1.INPUTUNIT Data and instructions must enter a computer system before the computer can perform any computation on the supplied data.Data and instructions enter a computer through an input unit in a form tha depends upon the input device used.  However, a computer's memory is designed to accept input in binary code and hence, all input devices must transform input signal to binary codes. Units called input interface accomplish this transformation. Input interface match the unique physical or electronic characteristics of input devices to the requirements of a computer system ✍️.It accept (or reads) introduction and data from outside world. ✍️.It converts these introduction and data in computer acceptable form. ✍️.It supplies the converted introduction and data to computer system for further processing. 2.OUTPUT An outputting unit performs the reverse operation officer that of input unith. It supplied information optained have from data p...

  CHARACTERISTICS OF COMPUTERS 1. Automatic An automatic Machine work by itself without human intervention. Computer are Automatic Machine because once started on a job, they carry out the job (Normally without any human assistance) unitl it is finished. However, computer being Machine cannot start themselves and cannot go out and find their own problems and solutions. Some of the other characteristics of computer ( such as speed and accuracy ) are because they are Automatic and work on a problem without anny human intervention 2. Speed A computer is a very fast device. It can perform in few seconds, the amount of work that a human being can do in an  entire year-if he/she worked day and night and did nothing else. . While taking about the speed of a computer we do not talk in terms of seconds or even milliseconds (10-3) but in terms of microseconds (10-6), nanosecond (10-9), and even picoseconds (10-12) 3. Accuracy In addition to begin very fast , computer are very accurate. ...