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UltraMobilePC
IDE (Integrated Drive Electronics)
IDE devices integrate the drive control circuitry directly on the drive itself, eliminating the
need for a separate adapter card (in the case for SCSI devices). UltraDMA/66 or 100 IDE
devices can achieve up to 33MB/Sec transfer.
POST (Power On Self Test)
When you turn on the computer, it will first run through the POST, a series of software-con-
trolled diagnostic tests. The POST checks system memory, the motherboard circuitry, the
display, the keyboard, the diskette drive, and other I/O devices.
RAM (Random Access Memory)
RAM (usually just called memory) is the place in a computer where the operating system,
application programs, and data in current use are temporarily kept so that they can be quickly
reached by the computer's processor instead of having to read from and write to slower stor-
age such as the hard disk or optical disc.
Standby Mode
A power mode that enables a computer to save power consumption while not in use. When
a computer is in Standby Mode, the data on the computer memory is not saved onto the hard
disk. If the power is tuned off, the data in memory will be lost.
Suspend Mode
In Save-to-RAM (STR) and Save-to-Disk (STD), the CPU clock is stopped and most of
the UltraMobilePC devices are put in their lowest active state. The UltraMobilePC enters
Suspend when the system remains idle for a specified amount of time or manually using the
function keys. The time-out setting of both Hard Disk and Video can be set by the BIOS
Setup. The Power LED blinks when the UltraMobilePC is in STR mode. In STD mode, the
UltraMobilePC will appear to be powered OFF.
System Disk
A system disk contains the core file of an operating system and is used to boot up the operat-
ing system.
Twisted-Pair Cable
The cable used to connect the Ethernet card to a host (generally a Hub or Switch) is called a
straight-through Twisted Pair Ethernet (TPE). The end connectors are called RJ-45 connec-
tors, which are not compatible with RJ-11 telephone connectors. If connecting two computers
together without a hub in between, a crossover twisted-pair is required.
UltraDMA/66 or 100
UltraDMA/66 or 100 are new specifications to improve IDE transfer rates. Unlike traditional
PIO mode, which only uses the rising edge of IDE command signal to transfer data, Ultra-
DMA/66 or 100 uses both rising edge and falling edge.
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