The meaning of WWW, HTTP, URL, VOIP, SMTP and FTP - QS Study
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WWW: World Wide Web. The World Wide Web (abbreviated as WWW or W3 commonly known as the Web or the “Information Superhighway”), is a system of interlinked hypertext documents accessed via the Internet. The World Wide Web is the most popular and promising method of accessing the Internet. The main reason for its popularity is the use of a concept called hypertext. Hypertext is a new way of information storage and retrieval, which enables authors to structure information in novel ways.

HTTP: Short for Hyper Text Transfer Protocol, HTTP is the underlying protocol used by the World Wide Web. HTTP defines how messages are formatted and transmitted, and what actions Web servers and browsers should take in response to various commands. For example, when you enter a URL in your browser, this actually sends an HTTP command to the Web server directing it to fetch and transmit the requested ‘Web page.

URL: Uniform Resource Locator. It is the global address of documents and other resources on the World Wide Web.

FTP (File Transfer Protocol): FTP is an internet tool for transferring data files, programs, reports, articles, magazines, books, pictures, sounds and other types of files from thousands of sources. The process of transferring a tile from a network computer to the user’s computer is called downloading and the reverse process is known as uploading.

VOIP: Voice Over Internet Protocol. A protocol that allows voice data to travel over the internet. Voice over IP (VoIP, or Voice over Internet Protocol) commonly refers to the communication protocols, technologies, methodologies, and transmission techniques involved in the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, voice over broadband (VOBB), broadband telephony, IP communications, and broadband phone.

SMTP: SMTP (Simple Mail Transfer Protocol) is a TCP/IP protocol used in sending and receiving. e-mail. However, since it is limited in its ability to queue messages at the receiving end, it is usually used with one of two other protocols, POP3 or IMAP, that let the user save messages in a server mailbox and download them periodically from the server. In other words, users typically use a program that uses SMTP for sending e-mail and either POP3 or IMAP for receiving e-mail.

FTP: The File Transfer Protocol (FTP) is a    standard network protocol used to transfer computer files from one host to another host over a TCP-based network, such as the Internet. FTP is built on a client-server architecture and uses separate control and data connections between the client and the server.