What does browser mean?

Browser refers to the application program used in computer systems to retrieve, display and deliver Web information resources. Web information resources are marked by a Uniform Resource Identifier (URI), and users can browse related information through a browser with the help of hyperlinks.

The operating environment of this article: Windows7 system, DELL G3 computer, Google87.0

The browser is used to retrieve, display and transmit Web information resource application. Web information resources are marked by a Uniform Resource Identifier (URI), which is a web page, a picture, a video, or any content presented on the Web. Users can use hyperlinks to browse related information through the browser.

Composition of the browser

1. Address bar: used to enter the address of the website. The IE browser correctly connects the user to access by identifying the information in the address bar. Content. To log in to the "Website Home" website, just enter the URL of Website Home in the address bar: http://www.hao123.com, and then press the [Enter] key or click the button on the right side of the address bar. . The address bar also comes with shortcut buttons for commonly used commands in IE, such as refresh (C), stop (x), etc. The forward and back buttons are set in front of the address bar.

2. Menu bar: It consists of "File", "Edit", "View", "Favorites", "Tools" and "Help" menus. Each menu contains related command options to control the work of IE. These options include all operations and setting functions of the browser.

3. Tabs: Starting from Internet Explorer 8, IE browser can use multi-tab browsing to open website pages in tabs.

4. Page window: It is the main window of IE browser, where the content of the visited web page is displayed. Some text or objects on the page have hyperlink attributes. When the mouse pointer is placed on it, it will turn into a hand shape. Click the left mouse button and the browser will automatically jump to the URL pointed to by the link; click the right mouse button. A shortcut menu pops up, from which you can select the operation command to be executed.

5. Status bar: Displays the current operation and the progress of downloading the Web page in real time. When a web page is opening, the progress of opening the website will also be displayed. In addition, the web page can be zoomed in and out through the status bar.

Mainstream browser classification

Mainstream browsers are divided into several categories such as IE, Chrome, Firefox, Safari, etc. They have the following characteristics:

1. IE browser. The IE browser is a browser launched by Microsoft that comes with the Windows system. Its kernel is independently developed by Microsoft, referred to as the IE kernel (Trident kernel). This browser only supports the Windows platform. Most domestic browsers provide some plug-ins based on the IE core, such as 360 Browser, Sogou Browser, etc.

2. Chrome browser. Chrome browser is a browser independently developed by Google on the basis of open source projects. Its core is WebKit and it has the largest market share. It also provides many plug-ins that are convenient for developers to use. Therefore, this browser was also developed in this book. of major browsers. The Chrome browser not only supports Windows platforms, but also supports Linux and Mac systems. It also provides mobile applications (such as Android and iOS platforms).

3. Firefox browser. The Firefox browser is an open source browser provided by an open source organization, with the core being Gecko. It opens up the source code of the browser and also provides many plug-ins to facilitate user use. It supports Windows platforms, Llnux platforms and Mac platforms.

4. Safari browser. The Safari browser is mainly a browser tailor-made by Apple for the Mac system. The core is WebKit and is mainly used in Mac and iOS systems.

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