Sun Microsystems X4150 manual Domain Name System, dual inline memory, dynamic random access

Domain Name System

(DNS) A distributed name resolution system that enables computers to locate other computers on a network or the Internet by domain name. The system associates standard Internet Protocol (IP) addresses, such as “00.120.000.168,” with host names, such as “www.sun.com.” Machines typically get this information from a DNS server.

dual inline memory

module (DIMM) A circuit board that holds double the amount of surface-mount memory chips that a single inline memory module (SIMM) holds. A DIMM has signal and power pins on both sides of the board, whereas a SIMM has pins on only one side of the board. A DIMM has a 168-pin connector and supports 64-bit data transfer.

Dynamic Host

Configuration Protocol

(DHCP) A protocol that enables a DHCP server to assign Internet Protocol (IP) addresses dynamically to systems on a Transmission Control Protocol/Internet Protocol (TCP/IP) network.

dynamic random access

memory (DRAM) A type of random access memory (RAM) that stores information in integrated circuits that contain capacitors. Because capacitors lose their charge over time, DRAM must be periodically recharged.

E

electrically erasable programmable read- only memory

(EEPROM) A type of nonvolatile programmable read-only memory (PROM) that can be erased by being exposed to an electrical charge.

electrostatic discharge

(ESD) The sudden dissipation of static electrical charge. ESD can easily destroy semiconductor components.

Embedded Lights Out

Manager (ELOM) A dedicated system of hardware and supporting software that enables you to manage your Sun server using several interfaces, independent of the operating system, and under various power conditions.

enhanced parallel port

(EPP) A hardware and software standard that enables systems to transmit data at twice the speed of standard parallel ports.

114 Sun Fire X4150 Server Embedded Lights Out Manager Administration Guide • September 2007