Ladia,kim A. 203/EVENENG 1. computer is a general purpose device that can be programmed to carry out a finite set of arithmetic or logical operations. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem. 2. Elements of Computer: 5 Major Element of Computer Input Output Memory Processing Unit Arithmetical Unit Basic Element of Computer Hardware Software Compiler Operating System CPU 3. Disadvantages & Advantages of Computer: Disadvantages: 1. It can have negative effects on your social life and interactions with other people if you do not maintain the balance between time online and offline. 2. It may have a negative effect on your eyesight due to radiation. 3. It may cause pimples and wrinkles. 4. It may distract you from your studies. 5. Too much time in front of monitor may adversely affect your eyesight. 6. Sitting in front of a computer for too long without exercise can cause a weight gain. Advantages: 1. It helps you automate various tasks that you cannot do manually. 2. It helps you organize your data and information. 3. It has much more computing and calculating power then an ordinary human. 4. It may help your work to be a lot easier. 5. It can help you communicate with friends, coworkers and other contacts. 6. It has many search engines to help you find information quickly. Ladia,Kim A. 204/EVENENG 1. What is Internet? The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to serve several billion users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless and optical networking technologies. The Internet carries an extensive range of information resources and services, such as the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support email. 2. What is Network? A computer network is a telecommunications network that allows computers to exchange data. The physical connection between networked computing devices is established using either cable media or wireless media. The best-known computer network is the Internet. 3. What is Internet Service Provider (ISP)? An Internet service provider (ISP, also called Internet access provider) is a business or organization that offers users access to the Internet and related services. Many but not all ISPs are telephone companies or other telecommunication providers. They provide services such as Internet access, Internet transit, domain nameregistration and hosting, dial-up access, leased line access and colocation. Internet service providers may be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned. 4. What is WORLD WIDE WEB (WWW)? Is a system of interlinked hypertext documents accessed via the Internet. With a web browser, one can view web pages that may contain text, images, videos, and other multimedia, and navigate between them via hyperlinks. 5. What is Hypertext Transfer Protocol (HTTP)? The Hypertext Transfer Protocol (HTTP) is an application protocol for distributed, collaborative, hypermedia information systems.[1] HTTP is the foundation of data communication for the World Wide Web.Hypertext is structured text that uses logical links (hyperlinks) between nodes containing text. HTTP is the protocol to exchange or transfer hypertext. 6. What is the difference between webpage and website? A web page (or webpage) is a web document that is suitable for the World Wide Web and the web browser. A web browser displays a web page on amonitor or mobile device. The web page is what displays, but the term also refers to a computer file, usually written in HTML or comparable markup language, whose main distinction is to provide hypertext that will navigate to other web pages via links. Web browsers coordinate web resourcescentered around the written web page, such as style sheets, scripts and images, to present the web page. A website, also written as Web site,[1] web site, or simply site,[2] is a set of related web pages served from a single web domain. A website is hosted on at least one web server, accessible via a network such as the Internet or a private local area network through an Internet address known as a Uniform Resource Locator. All publicly accessible websites collectively constitute the World Wide Web. 7. What is Web Server? The term web server can refer to either the hardware (the computer) or the software (the computer application) that helps to deliver web content that can be accessed through the Internet 8. What is Web Browser? A web browser (commonly referred to as a browser) is a software application for retrieving, presenting and traversing information resources on theWorld Wide Web. An information resource is identified by a Uniform Resource Identifier (URI) and may be a web page, image, video or other piece of content. Hyperlinks present in resources enable users easily to navigate their browsers to related resources. 9. Give an example of WEB BROWSER. Google Chrome Opera Mini FireFox Internet Explorer 10.What is Hypertext Mar kup Language (HTML)? HyperText Markup Language (HTML) is the main markup language for creating web pages and other information that can be displayed in a web browser. HTML is written in the form of HTML elements consisting of tags enclosed in angle brackets (like ), within the web page content. HTML tags most commonly come in pairs like and , although some tags, known as empty elements, are unpaired, for example . The first tag in a pair is the start tag, and the second tag is the end tag (they are also called opening tags and closing tags). In between these tags web designers can add text, tags, comments and other types of text-based content.
Posted on: Tue, 25 Jun 2013 18:37:27 +0000
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