Instruction Manual

l Controllers for standard peripheral devices, such as the keyboard
l Various ROM chips
Frequently used synonyms for system board are motherboard and logic board.
system configuration information
Data stored in memory that tells a system what hardware is installed and how the system should be configured for operation.
system diskette
System diskette is a synonym for bootable diskette.
system memory
System memory is a synonym for RAM.
System Setup program
A BIOS-based program that allows you to configure your system's hardware and customize the system's operation by setting such features as password
protection and energy management. Some options in the System Setup program require that you reboot the system (or the system may reboot automatically)
in order to make a hardware configuration change. Because the System Setup program is stored in NVRAM, any settings remain in effect until you change them
again.
termination
Some devices (such as the last device at each end of a SCSI cable) must be terminated to prevent reflections and spurious signals in the cable. When such
devices are connected in a series, you may need to enable or disable the termination on these devices by changing jumper or switch settings on the devices
or by changing settings in the configuration software for the devices.
text editor
An application program for editing text files consisting exclusively of ASCII characters. Windows Notepad is a text editor, for example. Most word processors
use proprietary file formats containing binary characters, although some can read and write text files.
text mode
A video mode that can be defined as x columns by y rows of characters.
time-out
A specified period of system inactivity that must occur before an energy conservation feature is activated.
tpi
Abbreviation for tracks per inch.
UL
Abbreviation for Underwriters Laboratories.
UMB
Abbreviation for upper memory blocks.
upper memory area
The384KBofRAMlocatedbetween640KBand1MB.IfthesystemhasanIntel386orhighermicroprocessor,autilitycalledamemory manager can create
UMBs in the upper memory area, in which you can load device drivers and memory-resident programs.
UPS
Abbreviation for uninterruptible power supply. A battery-powered unit that automatically supplies power to your system in the event of an electrical failure.
USB
Abbreviation for Universal Serial Bus. A USB connector provides a single connection point for multiple USB-compliant devices, such as mice, keyboards, printers,
and system speakers. USB devices can also be connected and disconnected while the system is running.
utility
A program used to manage system resources—memory, disk drives, or printers, for example.
UTP
Abbreviation for unshielded twisted pair.
V
Abbreviation for volt(s).
VAC