# Glossary

This Glossary defines terms, abbreviations, and acronyms that apply directly to the Intel® Boot Agent.

TERMS DEFINITIONS

ACPI | Advanced Configuration and Power Interface
BBS | BIOS Boot Specification
BC | BaseCode. The PXE Base Code is comprised of a simple network stack (UDP/IP) and a few common network protocols (DHCP, ARP, TFTP) that are useful for remote booting machines.
BINL | Binary Image Negotiation Layer
BIOS | Basic Input/Output System. The program a personal computer's microprocessor uses to get the computer system started after you turn it on. It also manages data flow between the computer's OS and attached devices.
BOOTP | Bootstrap Protocol. A legacy remote booting protocol developed originally for use with UNIX. Used as Linux*'s server side PXE host software. Runs a Daemon once installed.
BootUtil | Intel® Ethernet Flash Firmware Utility (BootUtil).
DDIM | Device Driver Initialization Model
DHCP | Dynamic Host Configuration Protocol. An industry standard Internet protocol defined by the IETF. DHCP was defined to dynamically provide communications-related configuration values such as network addresses to network client computers at boot time. DHCP is specified by IETF RFCs 1534, 2131, and 2132.
EEPROM | Electrically Erasable Programmable Read-Only Memory
Flash | A high-density, truly non-volatile, high-performance, read-write memory solution, also characterized by low power consumption, extreme ruggedness, and high reliability.
IA32 | Shorthand for computer platforms based on Intel 32-bit architecture CPUs.
IA64 | Shorthand for computer platforms based on Intel Itanium 64-bit architecture CPUs.
IAL | Intel Architecture Lab
LCM | LANDesk Configuration Manager
LOM | LAN On Motherboard. This is a network device that is built onto the motherboard (or baseboard) of the machine.
NIC | Network Interface Card. Also referred to as adapter. Technically, this is a network device that is inserted into a bus on the motherboard or into an expansion board. For the purposes of this document, the term NIC will be used in a generic sense, meaning any device that enables a network connection (including LOMs and network devices on external busses, such as USB 1394, etc).
OS | Operating System
PMM | POST Memory Manager. A mechanism used by option ROMs to allocate RAM memory for use during system startup.
PnP | Plug and Play
POST | Power On Self-Test
proxyDHCP | Used to ease the transition of PXE clients and servers into an existing network infrastructure. proxyDHCP provides additional DHCP information that is needed by PXE clients and boot servers without making changes to existing DHCP servers.
PXE | Preboot Execution Environment. PXE provides a way for a system to initiate a network connection to various servers prior to loading an OS. This network connection supports a number of standard IP protocols such as DHCP and TFTP, and can be used for purposes such as software installation and system inventory maintenance.
RIS | Remote Installation Services. A Microsoft* service that uses PXE to deliver the Network Bootstrap Program to start the boot process.
ROM | Read-Only Memory. When used in this guide, ROM refers to a non-volatile memory storage device on a NIC.
TCO | Total Cost of Ownership. Studies indicate that the most expensive part of a PC for businesses is not the cost of the PC itself, but its on-going maintenance and management. This after-purchase cost is tracked as Total Cost of Ownership. Remote management tools like PXE help lower the overall cost of the ownership.
TFTP | Trivial File Transfer Protocol. An industry standard Internet protocol defined by the IETF to enable the transmission of files across the Internet. Trivial File Transfer Protocol (TFTP, Revision 2) to support NBP download is specified by IETF RFC 1350.
UNDI | Universal Network Driver Interface. UNDI provides a hardware-independent mechanism for the PXE base code to use an adapter for network access without controlling the adapter hardware directly.
URL | Uniform Resource Locator. The address of a file (resource) accessible on the Internet.
USB | Universal Serial Bus. A Plug and Play (PnP) interface between a computer and add-on devices.
WOL | Wake on LAN*