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Introduction to QBasic

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Computer Classes in Ranchi Contact no: 91 7209831889 Introduction to QBasic Let's learn about a programming language called QBasic today. QBasic refers to Quick Beginners All purpose Symbolic Instruction Code. It is a simple programming language developed by Microsoft to type, edit, debug and execute BASIC programs. It is used in the MS-DOS operating system. QBasic uses English like words and Mathematical symbols to write programs. It is very easy and simple to understand. The extension of a QBasic program file is “.bas “. What are the features of QBasic? QBasic is a high level programming language. The features of QBasic are: QBasic is very easy and simple to understand QBasic automatically checks syntax. QBasic capitalizes the reserved words. QBasic keeps the same variable name used in a program to identical form. QBasic allows you to break lengthy programs into modules. Elements Of QBasic A QBasic program consists of various elements. They are: a character set, constants, variab...

Memory and Storage Devices

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Computer Classes in Ranchi Contact no: 91 7209831889 Memory and Storage Devices Memory and Storage Devices are an important part of the functioning of a computer. Based on the speed, size of the storage, and cost, it’s divided into hierarchies. Let us see those hierarchies Primary Memory Primary Memory is the memory which is directly accessible by the Central Processing Unit (C.P.U). Primary memory is commonly referred to as “main memory" or simply “memory". Primary Memory is volatile in nature i.e., they data stored in these are deleted as soon as the computer is turned off. Secondary Memory Unlike RAM, Secondary Memory is not volatile i.e., the information stored in the secondary memory is stored for a long period of time. The devices that are used as Secondary Memory are called secondary storage devices. Secondary Devices are much slower than the Primary Storage Devices. These are not directly accessible by the C.P.U, to access the secondary memory devices different input/...

Introduction of Multimedia

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Computer Classes in Ranchi Contact no: 91 7209831889 Introduction of Multimedia Our computer understands only a digital language ie. 0 or 1. The CPU (Central Processing Unit) understands a language of electrical phenomena. When we say electrical phenomena, it means, it is a state when electric current passes and a state when no current passes. A state when an electric current passes is called as 1 and a state when no current passes are called as state 0. This electrical signal language of 0’s and 1’s is called the digital language. A multimedia computer system integrates two or more types of media such as text, graphic images, sound and video. It can create, import, store, retrieve, edit and delete any of these types of media materials. With the integration of sound and picture, a computer has become an audio-visual tool that is very useful for entertainment, teaching, editing and messaging. Advantages of Multimedia With a multimedia computer system you can: A multimedia computer syste...

Internet and Viruses, Basics of Cyber Crimes, Cyber Laws

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Computer Classes in Ranchi Contact no: 91 7209831889   Internet and Viruses, Basics of Cyber Crimes, Cyber Laws  A virus is a type of computer program, where the programs get replicated itself without the user’s knowledge. Viruses are mainly spread through the internet.    Following are the ways in which computer virus spread Opening infected emails. By downloading infected programs from the internet. It can also be shared over a network or through external storage. Following are the symptoms of computer viruses Your system gets slow and to load programs on your computer it will take time. Names of the files saved in the computer get changed. Saved documents may be deleted or corrupted. Types of a computer virus  Boot Sector Virus – Most hostile types of virus and it mainly infects the boot record of a hard disk or a floppy disk. File Infecting Virus – These viruses get launched on launching the program and it infects program files on a disk. Multipartite Virus...

Introduction to Flas6h CS

Computer Classes in Ranchi Contact no: 91 7209831889                    Introduction to Flas6h CS Flash CS6 is a platform for multimedia. With this multimedia platform, we can create digital animation, rich web applications, websites, movies and etc. Mostly these are used for creating games and advertisements. Examples are Minesweeper, Pac Man, Tetris, and Bejewelled. Some of the famous movies created using flash are Off-Mikes, Gotham Girls, CrimeTime, and Homestar Runners.  Starting Flash CS6 – To start Adobe Flash Professional CS6, choose the Start button > All Programs > Adobe Production Premium CS6 > Adobe Flash Professional CS6.   Introduction to Flash CS6 Exploring the interface of Adobe Flash Professional CS6 – We have options such as Stage, Tools panel, Timeline panel, Properties panel, menubar, and application bar. We can create and edit interactive websites, digital animations from this interface options. Wor...

Introduction of Networking

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Computer Classes in Ranchi Contact no: 91 7209831889 Introduction of Networking To exchange data and perform an action, we have a group of computers and other devices connected together which are known as Network. These devices on the network can be thought of as a node which has a unique address, which is a numeric quantity. We have two principle kinds of networks: Wide Area Networks (WANs)  Local Area Networks (LANs) Wide Area Networks (WANs)  This network connects computers to a larger extent It widely covers cities, countries, and continents. Packet switching technology is used here. Local Area Networks (LANs) This network connects computers to a smaller extent It covers networks with a building or closely related buildings. Examples of LANs are - Ethernet, Token Ring, and Fiber Distributed Data Interconnect (FDDI). Ethernet LANs – Communication-based on a bus topology. Token ring LANs – Communication-based on the ring topology FDDI LANs – Communication uses optical fiber...

Introduction Operating Systems

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Computer Classes in Ranchi Contact no: 91 7209831889 Introduction Operating Systems It is a platform that manages all software and hardware on the computer. The main purpose of the operating system is to coordinate between these programs and to ensure all of these programs get what it needs. Functions of the operating system Let us discuss the functions of the operating system in detail: Processor management – The most important resource of any computer is a Processor. There will be several programs running on the computer at the same time. Each program requires a processor for its function. Operating system decides which process has to be allocated to the processor depending on when and how. Memory management – The operating system acts as a memory manager. It decides which memory has to be allocated to a process. It also computes how much memory and how long the memory is to be allocated. File management – The file manager allocates files and directories to processes. It helps the co...

Introduction of MS-PowerPoint 2010

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Computer Classes in Ranchi Contact no: 91 7209831889  Introduction of MS-PowerPoint 2010 Microsoft developed a visual graphical application known as MS – PowerPoint. some important features we will see in this chapter are working with slides master and themes, advancing slides using hyperlink and actions, customizing and broadcasting slide shows, macros.  Working with Slides Master and Themes we have predefined slides which can be used for presentation. We can change colours of those slides and make it more presentable. Ms – PowerPoint provides few installed templates and themes from which we can select the one that meets the context. To start with you have to first load PowerPoint to start a new presentation – you are presented with a Blank Presentation which is the default one. Now you have to move to the File >> New then Sample templates in the top row. The concept of the Slide Master – The first slide in the presentation is known as the slide master. It stores inform...

Introduction of MS Word 2010

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Computer Classes in Ranchi Contact no: 91 7209831889  Introduction of MS Word 2010 Page formatting using paragraph group:- Many options are available in the paragraph which is available on the home tab as well as on the page layout tab. You can adjust the alignment, add bullets, fill color, add space between lines and do many more formatting in page using the option. Alignment:- There are four types of alignment available in MS Word. They are left aligned, right aligned, centre aligned and full justified aligned. Alignment option is available on the home tab. select the type of alignment that you want to work with and you can start doing. Definition of line spacing:- Line spacing option helps you to give space in between different lines of a paragraph. Line spacing can be referred using a name or by a number that is multiple of single spacing. Line spacing option is available on the home tab in the paragraph option. You can change and view line spacing by clicking on the tab. More ...