X350 and X550 User ManualPage 52GlossaryAccess device (XD2): a multi-user computing station using NComputing patentedtechnology. It doesn't use a CPU, VGA or main chipsets. It shares the resources of thehost PC using NComputing vSpace software and a PCI card containing a system-on-a-chip (SoC).Administrator: a person who is responsible for managing a multi-user computingenvironment, such as a local area network (LAN). Administrator responsibilities typicallyinclude: installing and configuring system hardware and software, establishing andmanaging user accounts, upgrading software and performing backup and recoverytasks.Download: the network transmission of a file from one computer system to another.Ethernet: the most widely-installed local area network (LAN) technology - specified in astandard, IEEE 802.3.Firewall: a set of related programs that protect the resources of a private network fromusers on other networks and control what outside resources local users have access to.Gateway: a network point that acts as an entrance to another network. On the Internet,a node can be either a gateway node or a host (end-point) node.Host PC: a computer in which the vSpace software has been installed.Internet: a worldwide system of computer networks in which users at any one computercan, if they have permission, get information from other connected computers (andsometimes talk directly with users at other computers).LAN: local area network (LAN) is a group of computers and associated devices thatshare a common communications line or wireless link and typically share the resourcesof a single processor or server within a small geographic area (for example, within anoffice building). Usually, the server has applications and data storage that are shared incommon by multiple computer users. A local area network may serve as few as two orthree users (for example, in a home network) or as many as thousands of users (forexample, in an FDDI network).Log on: logon is the procedure by which an entity (person, program or system)exchanges credentials with an operating system or application in order to be allowedaccess to the OS or application. Almost always, a logon requires that the user has (1) auser ID and (2) a password. Often, the user ID must conform to a length requirement,such as eight characters or more, and the password must contain at least one digit andnot match a natural language word.User: a person who uses a computer system. Users need to identify themselves to beable to access the computer system. In order to ensure unique identities, the systemadministrator usually assigns each user a username associated with a defined set ofcomputer resources.USB: (Universal Serial Bus) is a standard designed to allow peripherals to connect andidentify themselves to a computer via a standardized interface socket. USB allowsdevices to connect and disconnect from a computer without forcing the computer to berestarted.vSpace: NComputing Desktop Virtualization software