48
4. Using the Notebook PC
Universal Serial Bus
Universal Serial Bus (USB) is a peripheral bus standard developed by PC and telecommunication in-
dustry leaders that will bring plug and play of computer peripherals outside the system, eliminating the
need to install internal expansion cards and drivers.
The Notebook PC is equipped with two USB ports. This allows computer peripherals to be automati-
cally configured as soon as they are physically attached, without the need to reboot or run setup. USB
will also allow up to 127 devices to run simultaneously on a single computer, with peripherals such as
monitors and keyboards acting as additional plug-in sites, or hubs.
The Notebook PC’s built-in USB host controller initiates data transfer at a full-speed of up to 12Mbps
for devices such as external hard disk drives, CD/DVD-ROM drives, tape drives, digital cameras. Low
speed transfers of up to 1.5Mbps are used for keyboards and mice. The USB controller automatically
manages the logical connection of devices and speeds.
Driver Support
The Windows 98 operating system comes already equipped with a standard driver that allows your
Notebook PC to recognize USB peripherals. However, new peripherals usually require additional USB
drivers. Read your peripheral documentation or contact an authorized dealer if you have any problems
using USB peripherals.
AC Power System
The Notebook PC power is comprised of two parts, the power adapter and the battery power system.
The power adapter converts AC power from a wall outlet to the DC power required by the Notebook
PC. The battery pack consists of a set of Lithium-Ion (Li-Ion) battery cells housed together. Only one
battery pack can be inserted into the Notebook PC. The AC Adapter’s primary function is to provide
power to the Notebook PC which also charges the battery pack. When the power adapter is connected to
the Notebook PC, it provides power to the Notebook PC and charges the internal battery at the same
time as long as it is plugged into an electrical outlet.
IMPORTANT: To protect your Notebook PC from damage, use only the power adapter
that came with this Notebook PC because each power adapter has its own power
output ratings.