RAID is short form of Redundant Array of Independent Disks. It is a way of storing the same data in different places on multiple hard disks. By placing data on multiple disks, I/O operations can overlap in a balanced way, improving performance. Since multiple disks increases the mean time between failure (MTBF), storing data redundantly also increases fault-tolerance.
RDBMS is short form of Relational Database Management System. It is a program that lets you create, update, and administer a relational database. An RDBMS takes Structured Query Language (SQL) statements entered by a user or contained in an application program and creates, updates, or provides access to the database.
A way for a computer user to express how a computer program should look for a specified pattern in text. The user of a regular expression can then tell the program what it is to do when matching patterns are found.
Radio Frequency IDentification - a technology, along with appropriate information infrastructure, when used on a product, its physical movement can be monitored.
RISC is short form of Reduced Instruction Set Computer. It is a type of microprocessor that is designed to perform a smaller number of types of computer instructions so that it can operate at a higher speed.
An Internet encryption and authentication system that uses an algorithm developed in 1977 by Ron Rivest, Adi Shamir, and Leonard Adleman. The RSA algorithm is the most commonly used encryption and authentication algorithm and is included as part of the Web browsers from Microsoft and Netscape.
