Toshiba Satellite Pro L550 - Manual (Page 170)

10-2 User’s Manual
L550/L550D/L555/L555D
64-Bit Computing
64-bit processors are designed to take advantage of 32 and 64 bit
computing.
64-bit computing requires that the following hardware and software
requirements are met:
■ 64-bit Operating System
■ 64-bit CPU, Chipset and BIOS (Basic Input/Output System)
■ 64-bit Device drivers
■ 64-bit applications
Certain device drivers and/or applications may not be compatible with
a 64-bit CPU and therefore may not function properly.
Memory (Main System)
Part of the main system memory may be used by the graphics system for
graphics performance and therefore reduce the amount of main system
memory available for other computing activities. The amount of main
system memory allocated to support graphics may vary depending on the
graphics system, applications utilized, system memory size and other
factors. Computers configured with a 32-bit operating system can address
up to 3GB of system memory. Only computers configured with a 64-bit
operating system can address 4GB or more of system memory.
Battery Life
Battery life may vary considerably depending on product model,
configuration, applications, power management settings and features
utilized, as well as the natural performance variations produced by the
design of individual components. Published battery life numbers are
achieved on select models and configurations tested by Toshiba at the time
of publication. Recharge time varies depending on usage. Battery may not
charge while computer is consuming full power.
After a period of time, the battery will lose its ability to perform at maximum
capacity and will need to be replaced. This is normal for all batteries. To
purchase a new battery pack, see the accessories information that shipped
with your computer.
HDD drive capacity
One Gigabyte (GB) means 10 9 = 1,000,000,000 bytes using powers of 10.
The computer operating system, however, reports storage capacity using
powers of 2 for the definition of 1 GB = 2
30 = 1,073,741,824 bytes, and
therefore shows less storage capacity. Available storage capacity will also
be less if the product includes one or more pre-installed operating systems,
such as Microsoft Operating System and/or pre-installed software
applications, or media content. Actual formatted capacity may vary.