ABSTRACT
RAID (Redundant Array of Independent Drives) Level: 3 Definition: A computer storage device containing several hard disk drives in a single housing offering redundant data protection in the event of hardware failure. RAID systems provide highspeed disk access and some error detection and correction capabilities. Data can be stored simultaneously on more than one disk drive, providing system redundancy. Five levels of security protection are available in RAID systems, with capabilities to recover from almost any realistic failure scenario. (See also Hard Drive.)
RAM (Random-Access Memory) Level: 1 Definition: The primary memory capacity in a computer and used only for temporary storage. RAM has read/write capabilities and requires a constant power supply to remain intact, and thus power surges or other interruptions require the installation of backup protection procedures. Once a computer is turned off or shut down for any reason, all information in RAM is lost. To prevent loss problems, information of high value (i.e., cannot be replaced easily) should be saved permanently on a hard disk, burned to CD, and/or placed on some other more permanent storage medium.
