Electronic mail, often abbreviated to e-mail, email, or originally email, is a store-and-forward method of writing, sending, receiving and saving messages over electronic communication systems. The term "e-mail" (as a noun or verb) applies to the Internet e-mail system based on the Simple Mail Transfer Protocol, to network systems based on other protocols and to various mainframe minicomputer, or internet by a particular systems vendor, or on the same protocols used on public networks. E-mail is often used to deliver bulk unsolicited messages, or "spam", but filter programs exist which can automatically block, quarantine or delete some or most of these, depending on the situation. Gmail
Yahoo
Hotmail
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A web browser is a software application which enables a user to display and interact with text, images, videos, music and other information typically located on a Web page at a website on the World Wide Web or a local area network. Text and images on a Web page can contain hyperlinks to other Web pages at the same or different website.
Internet Explorer,Mozilla Firefox, Safari, Netscape, Opera A Web search engine is a search engine designed to search for information on the World Wide Web. Information may consist of web pages, images and other types of files.
Google,
Yahoo,
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