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Questions and Answers
What is programming?
What is programming?
Which of the following is a popular programming language mentioned in the text?
Which of the following is a popular programming language mentioned in the text?
What is the purpose of a programming language like Python or JavaScript?
What is the purpose of a programming language like Python or JavaScript?
Which programming language mentioned in the text is often used for developing interactive web pages?
Which programming language mentioned in the text is often used for developing interactive web pages?
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What is the purpose of large programs like web browsers requiring extensive testing before implementation?
What is the purpose of large programs like web browsers requiring extensive testing before implementation?
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Which technology allows you to format text, change font size, color, and background colors on a website?
Which technology allows you to format text, change font size, color, and background colors on a website?
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What does KompoZer provide in addition to direct HTML editing?
What does KompoZer provide in addition to direct HTML editing?
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Which language is used for dynamically generating web pages based on server-side events?
Which language is used for dynamically generating web pages based on server-side events?
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Which technology uses bytecode instead of machine code for faster execution?
Which technology uses bytecode instead of machine code for faster execution?
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What is the main advantage of Java programs in terms of memory usage?
What is the main advantage of Java programs in terms of memory usage?
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Which feature makes KompoZer a user-friendly HTML editor?
Which feature makes KompoZer a user-friendly HTML editor?
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Study Notes
A computer is a complex device used by people around the world every day. It can perform various tasks such as managing files, sending emails, communicating with others online, creating documents, making presentations, designing websites, playing games, watching movies, writing code, learning new languages, listening to music, making phone calls, drawing pictures, taking photographs, recording videos, setting alarms, and much more. Here's some information on specific aspects of computers:
Programming
Programming involves writing instructions for a computer to follow. Basically, you are telling it what to do. For instance, if you want your computer to print out something from your printer, you would have to tell it exactly how and when to do so. That series of commands, written in a special language called a programming language, is called software. Some popular programming languages include Python, JavaScript, Ruby, PHP, Perl, Hypertext Preprocessor, HTML, XML, Visual Basic, Object Pascal, Common Lisp, and Scheme. Learning one of these languages will allow you to create software on your own computer using nothing more than the keyboard and monitor that came with it. Large programs like web browsers take many years to develop because they need to work well on lots of different types of machines. This means that even small changes can require months of testing before they get put into the program. But once everything works right, users all over the world enjoy using them.
KompoZer
KompoZer is a WYSIWYG (what you see is what you get) HTML editor which combines user–friendly, visual editing with powerful features found only in high end professional editors. Its unique blend makes KompoZer a breeze to operate. In addition to being able to edit HTML directly through its built-in property inspector, you can also insert images, links and other objects without leaving the page. To make things easier still, there are several predefined styles available under the Styles menu.
Cascading Style Sheet (CSS)
Cascading Style Sheet, commonly known as CSS, is an extension of HTML that allows you to format text for displaying on your website. CSS enables you to change the font size, color, spacing between lines of text, background colors, etc., while HTML does not. As a result, websites look better with CSS. While most beginners start off using simple HTML tags, advanced designers often employ dynamic scripts written in JavaScript. However, those who prefer a GUI interface might find KompoZer useful for their needs.
JavaScript
JavaScript is another scripting language similar to HTML. Unlike plain old HTML which describes pages statically, scripts dynamically generate pages based upon what happens on the server side. Scripts are usually stored inside large databases where they wait until someone triggers them. When triggered, they execute instantly thanks to technologies like HTTP POST requests and cookies. With this technology, developers can easily build interactive web applications.
Java Program
A Java program uses bytecode instead of machine code. Bytecodes run faster than assembly language programs. They don't depend on hardware architecture either. Because there isn't any overhead associated with running these codes, Java programs tend to be smaller in terms of memory usage compared to non-bytecode languages like Assembly Language. Additionally, since bytecodes aren't tied down to particular platforms, Java programs typically work across multiple operating systems.
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Description
Test your knowledge on computer basics, programming languages, HTML editing, CSS, JavaScript, and Java programs. Explore various aspects of computers, software development, web design, and scripting languages.
