[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] R/RW drives  [See CD-R drives CD-RW drives] Radio Frequency Interference (RFI)  RAID (Redundant Array of Inexpensive Disks)  RAM  [See memory] Rambus DRAM  RAMDAC (Random Access Memory Digital-to-Analog Converter)  Random Access Memory  [See memory] ranges (memory)  raw mode  read power  Read-Only Memory BIOS (ROM-BIOS)      memory addresses for  read-while-write, configuring tape drives  read/write errors, in tape drives  read/write heads  read/write memory  receptacle configuration on backup power supplies  recording devices  [See CD-R drives CD-RW drives] recording formats  Red Book devices     CD formats      copy problems, avoiding  Reduced Instruction Set Computer  [See RISC] reduced-depth monitors  Redundant Array of Inexpensive Disks (RAID)  refresh frequencies      settings for  region coding  registers (device/head)  regulation of power supplies  2nd  remote sensing     lines      pin 11  removable hard disk drives      recommendations for  removable magnetic storage devices  rescue tools      SpinRite  resolution     caution with      changing settings      display settings      QuickRes utility and  resources for further reading     burning CDs and CD writers      Universal Disc Format  resources pages  response types  retention mechanisms      installing slotted processors  RFI (Radio Frequency Interference)  ribbon cables      keying problems with  RIMM      booting and, caution with      installing, caution with  ripping CDs to MP3s  RISC (Reduced Instruction Set Computer)      vs. CISC  riser cards  RMS Power (Root Mean Square)  ROM-BIOS      memory addresses for  Root Mean Square (RMS Power)  rotation rate, in hard disk drives  rudder controls  run time of backup power supplies  Running Statuses, in MIDI messages