302R radio frequency interference (RFI): All computer equipment generates radio frequencysignals. The FCC regulates the amount of RFI a computing device can leakpast its shielding. A Class A device is sufficient for office use. Class B is amore stringent classification applying to equipment for home use. Toshibadesktop and notebook computers are Class B devices, Toshiba servers areClass A.radio frequency interference (RFI) shield: A metal shield enclosing the printed circuitboards of the printer or computer to prevent interference with radio and TVreception.random access memory (RAM): High-speed memory which holds a copy of theoperating system, any currently executing programs, and any informationundergoing processing. RAM is volatile, which means that all information inRAM is lost when its power supply is turned off.read-only memory (ROM): A type of memory which the computer can access but cannotchange. It contains information that controls the computer’s basic operation.ROM is non-volatile memory, which means that the information stored in ROMis permanent—it is not lost when you turn off the computer.real time: An operating mode in which data is received, processed, and the resultsreturned immediately.reboot: See boot, restart.Redundant Array of Independent Disks (RAID): A group of hard disks that are managedas a unit to provide increased performance and various levels of error recoveryand fault tolerance. The technique can be implemented in software usingstandard disk controllers, or it can be designed into the disk controller itself.Registry: The central information database for Windows 95/98 or Windows NT. It holdshardware-specific information and stores configuration details for programs,reducing the need for initialization (.INI) files.
