Artwork Symbols

Article
09/11/2008

Table I.1 contains the artwork symbols used in this volume. You can use it as a resource as you study the diagrams in this guide.

Table I.1 Artwork Symbols

Symbol	Meaning	Symbol	Meaning	Symbol	Meaning
	Access token . An object that contains user information and is used for security purposes.		Automated Library. Tape/disk libraries that contain a collection of media and one or more drives.		Client. A computer that accesses shared network resources provided by another computer.
	Cluster. A group of independent computers that works together as a single system.		Database . Any collection of data organized for storage and access by computers.		Document . Any self-contained piece of work created with an application program and saved on a disk.
	Domain. In Windows 2000, a collection of computers defined by the administrator that share a common directory database.		E-mail. The exchange of text messages and computer files over a communications network.		Failure. The inability of a computer system or related device to fail gracefully over a period of time.
	File Folder . A directory or subdirectory.		Firewall. A piece of a security system used to prevent unauthorized access to a network.		Generic Server. A computer running administrative software.
	Hard Disk . A device used for storing data magnetically.		Host. The main computer in a system of computers or terminals connected by communications links.		Host. The main computer in a system of computers or terminals connected by communications links.
	I/O Filter . A series of definitions that indicate to a router the type of traffic allowed on each interface.		Internet. Refers to the worldwide collection of networks that communicate with each other.		Laptop or Portable Computer. A small, portable personal computer.
	Macintosh Client. A networked personal computer manufactured by Apple Computer Corporation.		Mainframe Computer . A high-level computer designed for the most intensive computational tasks.		Mainframe Computer . A high-level computer designed for the most intensive computational tasks.
	Mixed mode domain. A mode in which Windows 2000 and Windows NT domain controllers coexist in a domain.		Modem . A communications device that enables a computer to transmit information over a standard telephone line.		Modem Bank. A collection of modems connected to a single server.
	Network Adapter . An expansion card or other device for connecting a computer to a local area network.		Organizational unit . A structure within a domain.		Organizational unit. A logical container holding users, groups, computers, and other organizational units.
	Packets. A network transmission unit of fixed maximum size.		Printer. A print device that is directly connected to your network.		Remote Access connection. A dial-up connection between servers, domain controllers, and sites.
	Root. The highest or uppermost level in a hierarchically organized set of information.		Router. An intermediary device that directs and optimizes network traffic.		Security Key. A security descriptor that contains the local security policy, such as specific user rights.
	Server Farm. A group of servers that provides services to the network.		Site . One or more well-connected TCP/IP subnets.		Steelhead router. A computer acting as an intermediary device on a communications network.
	Switch or Gateway. A device connecting two networks that is capable of passing or blocking packets.		Tape or Tape Backup. A tape cartridge format used for data backups.		Tape Drive. A device for reading and writing tapes.
	Terminal . A device consisting of a video adapter, a monitor, and a keyboard that does little processing on its own and is connected to a computer via a communications link.		Tunnel. The logical path by which the encapsulated packets travel through the transit internetwork.		Windows NT domain . A networked set of computers that runs Windows NT 4.0, that shares a SAM database, and that can be administered as a group.
	Windows 2000 Server. A server that provides centralized management on the network.		Uninterruptible power supply. A device between a power source and a computer that ensures electrical flow is not interrupted.