Dell PowerEdge 750 - Manual (Page 32)

Data stored in memory that tells a system what hardware is installed and how the system should be configured for operation
system diskette
See bootable diskette.
system memory
See 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 features such as password
protection. Because the System Setup program is stored in NVRAM, any settings remain in effect until you change them again.
system.ini file
A start-up file for the Windows operating system. When you start Windows, it consults the system.ini file to determine a variety of options for the Windows
operating environment. Among other things, the system.ini file records which video, mouse, and keyboard drivers are installed for Windows.
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.
UNIX
UNiversal Internet eXchange. UNIX, the precursor to Linux, is an operating system written in the C programming language.
uplink port
A port on a network hub or switch used to connect to other hubs or switches without requiring a crossover cable
UPS
Uninterruptible power supply; a battery-powered unit that automatically supplies power to your system in the event of an electrical failure
USB
Universal Serial Bus. A USB connector provides a single connection point for multiple USB-compliant devices, such as mice and keyboards. USB devices can
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
Unshielded twisted pair; a type of wiring used to connect systems in a business or home to a telephone line
V
Volt(s)
VAC
Volt(s) alternating current
VDC
Volt(s) direct current