UDP
Also known as:
User Datagram Protocol
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UDP relies on IP and is designed to send data from one computer to another. UDP does not establish a “connection” like TCP. Rather, UDP is a way to fire off a message to an intended recipient in one shot. UDP does not guarantee that the message will ever arrive at the destination, so technology relying on UDP for data transmission has to check this itself. UDP can be faster but more difficult to use than TCP.
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Unix
Also known as:
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Unix was developed in 1969 as a multi-user and multi-tasking OS. It was and is widely used for network and Internet servers. Many companies have competing versions of Unix including IBM, HP, and Sun.
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URL
Also known as:
Uniform Resource Locator
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Whereas IP addresses are a way to give each computer on the Internet an address, URLs are a way to give each document, file, or service an address. URLs can begin with http:// for HTTP (web pages), ftp:// for FTP, news:// for newsgroups, and more.
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