User manual TOSHIBA SATELLITE 2450-114

[. . . ] The instructions and descriptions it contains are accurate for the Satellite Pro 4200/4300 Series Portable Personal Computers at the time of this manual's production. However, succeeding computers and manuals are subject to change without notice. Toshiba assumes no liability for damages incurred directly or indirectly from errors, omissions or discrepancies between the computer and the manual. Trademarks IBM is a registered trademark and IBM PC, OS/2, and PS/2 are trademarks of International Business Machines Corporation. Pentium is a registered trademark of Intel Corporation. [. . . ] Disabling the CPU cache also disables these features. Write-back policy provides better system performance, because main memory is accessed only when necessary to update the cache contents with changes in main memory. Write-through policy accesses main memory every time data is handled by the processor. The write policy option is used only for the CPU cache. CPU Cache Options Enabled: Enables the CPU cache. (Default) Disabled: Disables the CPU cache. Level 2 Cache Options Write Policy Enabled: Enables the level 2 cache. (Default) Disabled: Disables the level 2 cache. Write-back: Sets the write policy to write-back. (Default) Write-through: Sets the write policy to writethrough. Processor Serial Number Use this feature to enable or disable the ability of a remote location to read your processor's serial number. Processor Serial Number Processor Serial Number = Disabled (Default) = Enabled This item appears under the following conditions: A supervisor password is set, but a user password is not set. PCI BUS = IRQ** (Interrupt level is displayed. ) PC Card This option lets you set the PC Card Controller mode. PC Card Controller Mode This option lets you set the PC Card Controller mode. Auto-Selected CardBus/16bit Use this setting for all PC Cards if you are using a plug-and-play operating system. (Default) If the card does not work properly with the AutoSelected setting, use this setting for CardBus PC Cards. If the card does not work properly with the AutoSelected and CardBus/16bit settings, use this setting for 16-bit PC Cards. PCIC Compatible When Device Config is set to Setup by OS, you must set the PC Card to Auto-Selected. 7-14 Setup and Password Security User's Manual Drives I/O This item displays the installed hard disk drives and CD/DVD-ROM drives: HDD, CD-ROM. It appears only in TSETUP. Settings for Hard Disk Drive HDD = Primary IDE (1F0H/IRQ14) (HDD ready for use) Settings for CD/DVD-ROM drive CD-ROM = Secondary IDE (170H/IRQ15) (CD/DVD-ROM ready for use) Floppy disk I/O This item displays the address, interrupt level and DMA channel settings for the diskette drive. It appears only in TSETUP. Floppy Disk = (3F2H/IRQ6/CH2) Password security Two security levels are available: supervisor and user. The supervisor password is provided for system managers or others who need to control the computer's settings. If you do not need to restrict access to the computer's settings by other users, it is better to register only a user password. The following describes restrictions that apply to the user password mode when both supervisor and user passwords are registered. They do not apply if only the user password is registered. User password log on The following restrictions apply when you log on with a user password: TSETUP F, B, C switch No access You cannot use the F, B, C keys to change boot priority. User's Manual Setup and Password Security 7-15 Supervisor password logon The following restrictions apply to the user when you log on with a supervisor password: Instant security Resume Mode User password will not provide access to the computer. User password will not provide access to the computer. The supervisor password will provide access to the computer from instant security or Resume mode even if the user password was used to log on to the computer. [. . . ] Also called an operating system disk. User's Manual Glossary 13 T TDIAG: A Toshiba diagnostic program used for testing and configuring the computer system's resources. terminal: A typewriter-like keyboard and CRT display screen connected to the computer for data input/output. A logic circuit design that uses switching transistors for gates and storage. U USB: The Universal Serial Bus is a way to connect up to 127 devices through one connector. A new development in 1997, this offers significantly improved ease of use and reliability than earlier expansion methods. V VGA: Video Graphics Array is an industry standard video adaptor that lets you run any popular software. [. . . ]