L550/L550D/L555/L555D

GB: gigabyte

HDD: hard disk drive

GPS: Global Positioning System

HD+: High Definition Plus

IDE: integrated drive electronics

IEEE: Institute of Electrical and Electronics Engineers

I/O: input/output

IrDA: Infrared Data Association

IRQ: interrupt request

KB: kilobyte

LAN: local area network

LCD: liquid crystal display

LED: light emitting diode

MB: megabyte

MMC: multi media card

OCR: optical character recognition (reader)

PCB: printed circuit board

PCI: peripheral component interconnect

RAM: random access memory

RGB: red, green, and blue

ROM: read only memory

RTC: real time clock

S/P DIF: Sony/Philips Digital Interface Format

SDRAM: synchronous dynamic random access memory

SLI: Scalable Link Interface

SIM: Subscriber Identity Module

SO-DIMM:small-outline dual in line memory module

TFT: thin-film transistor

UART: universal asynchronous receiver/transmitter

USB: Universal Serial Bus

UWB: Ultra Wide Band

VESA: Video Electronic Standards Association

VGA: video graphics array

XGA: extended graphics array

Glossary-2

User’s Manual