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1. Top-level directory from which all other (sub)directories branch out.
2. On a UNIX system, the system administrator 's account (also known as the superuser account). For security reasons, only the system administrator is allowed to log in as root.
A client is a computer system that requests a service of another computer system (a server ) on the network .
In a client/server environment clustering means using two or more computers which function together as one single entity. When one computer is failing, the other will take over its task. This procedure will increase reliability and up-time.
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When servers from different owners are physically located in the same place and use a common Internet connection, it's called a co-location. If someone wants his machine to be on a high-speed Internet connection, if he doesn't have the possibility to maintain his server, or if he doesn't want security risks, he can choose for co-location in a place with optimum conditions for running a server.
Name of a structured, procedural computer language commonly used for the creation of operating systems and other professional-grade applications.
Device connected to your computer that enables you to receive and request information from the Internet over your local cable TV line. The bandwidth of a cable modem far exceeds the bandwidth of the 28.8 Kbps , ISDN or ADSL modems.
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Area of your computer memory or directory on your hard disk. This is the place where your browser stores viewed Web pages . When you return to a page, the browser gets this page from the cache, saving you time. However, if you return to a page that changes a lot, you need to click the "Reload" button on your browser to get the latest version.
Carbon Copy. To send somebody a copy of an email message.
CERN (European Organization for Nuclear Research) is in fact the birth-place of the World Wide Web . One of the researchers of CERN, Dr. Tim Berners-Lee originated the hypertext transport protocol (HTTP ) on which the World Wide Web is based.
About 1 billion bytes .
1 Kb = 1,024 bytes
1 Mb = 1,024 Kb (= 1,048,576 bytes)
1 Gb = 1,024 Mb (= 1,073,741,824 bytes)