Dell External OEMR 2970 User Guide - Page 210

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. threshold values Systems are normally equipped with various sensors that monitor temperature, voltage, current, and fan speed. The sensor's threshold values specify the ranges (min and max values) for determining whether the sensor is operating under normal, noncritical, critical or fatal conditions. Dell-supported threshold values are: • UpperThresholdFatal • UpperThresholdCritical • UpperThresholdNon-critical • Normal • LowerThresholdNon-critical • LowerThresholdCritical • LowerThresholdFatal time-out A specified period of system inactivity that must occur before an energy conservation feature is activated. tpi Abbreviation for tracks per inch. TQFP Acronym for thin quad flat pack. TSR Abbreviation for terminate-and-stay-resident. A TSR program runs "in the background." Most TSR programs implement a predefined key combination (sometimes referred to as a hot key) that allows you to activate the TSR program's interface while running another program. When you finish using the TSR program, you can return to the other application program and leave the TSR program resident in memory for later use. TSR programs can sometimes cause memory conflicts. When troubleshooting, rule out the possibility of such a conflict by rebooting your computer without starting any TSR programs. UART Acronym for universal asynchronous receiver transmitter, the electronic circuit that makes up the serial port. UDP Acronym for user datagram protocol. UL Abbreviation for Underwriters Laboratories. UMB Abbreviation for upper memory blocks. unicode A fixed width, 16-bit world wide character encoding, developed and maintained by the Unicode Consortium. upper memory area The 384 KB of RAM located between 640 KB and 1 MB. If the computer 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 computer in the event of an electrical failure. USB Abbreviation for Universal Serial Bus. A USB connector provides a single connection point for multiple USBcompliant devices, such as mice, keyboards, printers, and computer speakers. USB devices can also be connected and disconnected while the system is running. 210 Glossary