Learn Basic Computer vs Learn XML & AJAX

This app will help you understand how computers work and how to use them. We'll talk about how to set up a computer, the difference between hardware and software, and the types of computers you can use. We'll also explore operating systems, applications, the cloud, and a whole lot more. Using a computer Whether you're getting started with your first computer or are just looking to learn more about how they work, you'll find all of the information you need in our written lessons, videos, and interactives. When you're done, you'll have a fundamental understanding of how to use a computer. You'll also be ready to learn even more about computers with some of our other app. What is a computer? A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos. Hardware vs. Software Hardware is any part of your computer that has a physical structure, such as the keyboard or mouse. It also includes all of the computer's internal parts, which you can see in the image below. viewing hardware. Software is any set of instructions that tells the hardware what to do and how to do it. Examples of software include web browsers, games, and word processors. viewing software. Everything you do on your computer will rely on both hardware and software. For example, right now you may be viewing this lesson in a web browser (software) and using your mouse (hardware) to click from page to page. As you learn about different types of computers, ask yourself about the differences in their hardware. As you progress through this tutorial, you'll see that different types of computers also often use different types of software. Hardware and software The main components of a computer, including input and output devices The function of communication devices such as smartphones and tablets The role of Operating Systems, programs and apps. Windows Turning on the computer and logging on The Windows screen Running programs from the Start Menu Minimising, maximising, moving, resizing and closing windows Logging off and shutting down your computer. Working with programs Running multiple programs Desktop icons and creating a desktop shortcut Managing programs from the taskbar Closing programs. File management Managing Windows Explorer Creating, moving, renaming and deleting folders and files Understanding file extensions Viewing storage devices and network connections Managing USB flash drives. Word processing Creating documents in Microsoft Word Typing text, numbers and dates into a document Easy formatting Checking the spelling in your document Making and saving changes to your document. Spreadsheets Understanding spreadsheet functionality Creating spreadsheets in Microsoft Excel Typing text numbers and dates into a worksheet Easy formulas Easy formatting Making and saving changes to your workbook Printing a worksheet. Printing Print preview Print settings Managing the print queue. Using email The Outlook mail screen elements Composing and sending an email message Managing the Inbox. Accessing the internet Going to a specific website and bookmarking Understanding how to search/Google effectively Copy and paste Internet content into your documents and emails Stopping and refreshing pages Demystifying the Cloud Computer security best practices

XML Xml (eXtensible Markup Language) is a mark up language. XML is designed to store and transport data. Xml was released in late 90’s. it was created to provide an easy to use and store self describing data. XML became a W3C Recommendation on February 10, 1998. XML is not a replacement for HTML. XML is designed to be self-descriptive. XML is designed to carry data, not to display data. XML tags are not predefined. You must define your own tags. XML is platform independent and language independent. Why xml Platform Independent and Language Independent: The main benefit of xml is that you can use it to take data from a program like Microsoft SQL, convert it into XML then share that XML with other programs and platforms. You can communicate between two platforms which are generally very difficult. The main thing which makes XML truly powerful is its international acceptance. Many corporation use XML interfaces for databases, programming, office application mobile phones and more. It is due to its platform independent feature. If you need to display dynamic data in your HTML document, it will take a lot of work to edit the HTML each time the data changes. With XML, data can be stored in separate XML files. This way you can focus on using HTML/CSS for display and layout, and be sure that changes in the underlying data will not require any changes to the HTML. With a few lines of JavaScript code, you can read an external XML file and update the data content of your web page. In the real world, computer systems and databases contain data in incompatible formats. XML data is stored in plain text format. This provides a software- and hardware-independent way of storing data. This makes it much easier to create data that can be shared by different applications. AJAX AJAX is an acronym for Asynchronous JavaScript and XML. It is a group of inter-related technologies like JavaScript, DOM, XML, HTML/XHTML, CSS, XMLHttpRequest etc. AJAX allows you to send and receive data asynchronously without reloading the web page. So it is fast. AJAX allows you to send only important information to the server not the entire page. So only valuable data from the client side is routed to the server side. It makes your application interactive and faster. ajax is not a technology but group of inter-related technologies. AJAX technologies includes: - HTML/XHTML and CSS - DOM - XML or JSON - XMLHttpRequest - JavaScript If you like our app then please give us 5 star ratings. We are trying our best to make the learning process more easy and simple for you.